Entries |
Document | Title | Date |
20080234922 | Traffic-jam state calculation systems, methods, and programs - Systems, methods, and programs obtain probe information, the probe information comprising an average speed of probe cars traveling on each of a plurality of links in a predetermined area. The systems, methods, and programs detect, for each of the plurality of links, a first degree of a traffic jam corresponding to the link for each of a plurality of different thresholds by comparing the average speed with each of the thresholds. The systems, methods, and programs obtain traffic-jam information concerning the plurality of links, the obtained traffic information comprising a second degree of the traffic jam corresponding to each of the plurality of links. The systems, methods, and programs compare, for each of the plurality of links, the second degree of the traffic jam with the first degree of the traffic jam for each of the thresholds. The systems, methods, and programs select, for the predetermined area, a threshold from the plurality of thresholds for which the first degree of the traffic jam most matches the second degree of the traffic jam and utilize the selected threshold to determine a severity of the traffic jam for each of the plurality of links. | 09-25-2008 |
20080255754 | Traffic incidents processing system and method for sharing real time traffic information - A traffic incidents processing system for sharing real time traffic information between a plurality of users connected via a network. The system includes a central computer system, operatively connected to a wide area network such as the Internet, a multiplicity of mobile communication devices, capable of determining their geographical location, and are operatively connected to a wide area network such as the Internet, and are capable of transmitting location based traffic information to the said central computer system. The central computer system continuously maintains updated database of traffic information. The central computer system is capable of analyzing, screening and assessing the reliability of the traffic information, detect a traffic situation, and provide customized, real time traffic alerts to a plurality of users connected to a network and to mobile communication devices such as cellular telephones via the wide area network as well as via short messaging service SMS, multimedia messaging system MMS, or any other data protocol capable of communicating with mobile devices. The central computer system is further capable of storing a history of routes traveled by users, and determine an optimal route from any originating point to any destination point by analyzing the stored routes and construct the optimal route using the most frequently traveled segments found in the stored routes database, and the realtime traffic information that is known to the system. | 10-16-2008 |
20080262711 | SYSTEM AND METHOD FOR DETERMINING TRAFFIC CONDITIONS - The present invention provides a method and apparatus for determining traffic conditions using wireless devices. A number of signals from the vehicles traveling in selected routes are received by several wireless communication networks via the wireless devices. The total number of signals received are used to compare if there are sufficient number of vehicles traveling on the selected routes. If so, then the location information of the moving vehicles at various times is determined by the wireless communication network and forwarded to a central computer. The central computer coordinates with the wireless communications network for information needed to compute traffic data. The central computer computes the velocity of the moving vehicles and a traffic profile is created based on the velocity and location information of the moving vehicles. Furthermore, the traffic profile is sent to the moving vehicles. | 10-23-2008 |
20080270015 | Traffic situation determination systems, methods, and programs - Traffic situation determination systems, methods, and programs acquire a current position of the vehicle based on a radio signal received from a GPS satellite and determine a first travel path of the vehicle based on the acquired position of the vehicle. The systems, methods, and programs determine whether a road on which the vehicle is traveling has a traffic jam. If the road on which the vehicle is traveling has a traffic jam, the systems, methods and programs transmit first information relating to the first travel path from the vehicle to an information center. The systems, methods, and programs receive second information relating to a second travel path of the vehicle, the second information being received from a mobile phone communication center and being based on a mobile phone signal received by the mobile phone communication center. The systems, methods, and programs determine a road corresponding to the first travel path as having a traffic jam and determine a road corresponding to the second travel path, and not corresponding to the first travel path, as having no traffic jam. | 10-30-2008 |
20080294331 | Method of Estimation of Traffic Information, Device of Estimation of Traffic Information and Car Navigation Device - There is provided a method and a device for accurately estimating traffic information of a link having no traffic information even if different types of roads are mixed. The device finds a parameter characterizing a damping curve of a quantity of change of relative speed based on stored traffic information for links on a city center side on a minimum-time cost route connecting the city center and suburbs, finds a quantity of change of relative speed of the link having no observed traffic information and estimates its traffic information based on the damping curve. The device also calculates a ratio of quantities of change of relative speed of two links whose road types change as a speed change similarity ratio and estimates traffic information of the link of a second road type from known traffic information of the link of a first road type by using that ratio. | 11-27-2008 |
20090082949 | METHOD AND SYSTEM FOR AUTOMATICALLY DIRECTING TRAFFIC ON A SITE - In a method for automatically directing traffic on a site, information is received regarding a plurality of selected entities on the job site. An indication of a first priority assigned to a first of the plurality of selected entities is received. An indication of a second priority assigned to a second of the plurality of selected entities is received. It is then determined that the first of the plurality of selected entities has a right of way over the second of the plurality of selected entities based upon a comparison of the first priority and the second priority. | 03-26-2009 |
20090082950 | System for transmitting, processing, receiving, and displaying traffic information - A system for sharing and processing traffic information includes a number of traffic information computer systems within individual vehicles and a traffic information server system. The traffic information computer systems are each connected to the server system through a network, which are additionally connected to one another by peer-to-peer radio communications, and which each operate with a database for displaying road maps, with a database storing average speed data for directions of travel along roadways, and with a location sensor used to determine the location and average speed of the vehicle, which are transmitted to the server. The server returns average speed data for road segments, which is displayed on the road maps. | 03-26-2009 |
20090112453 | METHOD OF PROVIDING DIRECTION INFORMATION ACCORDING TO REAL-TIME TRAFFIC CONDITIONS - A method, device and recorded medium having recorded the method, for providing directions information applied with real-time traffic condition reports are disclosed. An aspect of the present invention features a method and device that can receive traffic condition reports in real-time and provide directions information applied with the pertinent traffic condition reports. Accordingly, with the present invention, the directions information can be generated by using first real-time traffic condition reports. Then, the path directions applied with the change of traffic condition reports according to the time flow can be acquired and provided to a user. | 04-30-2009 |
20090118996 | System and method for determining a prediction of average speed for a segment of roadway - The present invention provides a system and method for determining the necessary departure time to allow for an on-time or desired arrival time at a particular location over a particular route based on the evaluation of historic, present, and predicted road conditions. | 05-07-2009 |
20090125220 | METHOD AND SYSTEM FOR MEASURING TRAFFIC INFORMATION IN CDMA NETWORK - A method for measuring traffic information, conducted by a traffic information analyzing device interworking with a radio operating device connected to BSS (Base Station Subsystem) of a synchronous CDMA (Code Division Multiple Access) network or RNC (Radio Network Controller) of an asynchronous WCDMA (Wideband Division Multiple Access) network, includes acquiring a location information message of MS (Mobile Station), which is provided from the BSS or RNC and stored in the radio operating device; analyzing location information of the MS by utilizing the location information message; and calculating traffic information of the MS including a moving speed of each measurement region by using the analyzed location information. | 05-14-2009 |
20090132156 | Apparatus for Monitoring Traffic - A personal traffic congestion avoidance system for drivers of motor vehicles traveling on roadways in motor vehicles with GPS-based navigational systems. The system includes a GPS-based navigational system that includes a GPS receiver connected to a visual display, a map database and a wireless communication device for communicating with a remote computer over a wireless communication network. The GPS-based navigation system continuously determines the motor vehicle exact physical location in a region that is intermittently or continuously uploaded to a remote computer via the wireless communication network. The remote computer is connected to a traffic monitoring service that provides current traffic congestion information thereto. When a traffic congestion event is in the designated vicinity of the current location of the motor vehicle or on a roadway that may affect the traffic on the roadway on which the motor vehicle is traveling, a warning is generated and delivered to the GPS-based navigational system. The driver may ignore the warning or take an alternative route to avoid the traffic congestion. | 05-21-2009 |
20090138190 | System and Method of Providing Traffic Data to a Mobile Device - A traffic data server wirelessly provides relevant traffic details to mobile subscribers at minimal data transmission, while supplying enough data for re-routing and detouring. Two-way wireless data connectivity allowing the server to know what data the mobile device has received in the past, allows the server to send, to a mobile device, only data that is necessary, i.e. updates to mobile users that are small data sets comprising the change in the previously received data to the current data. | 05-28-2009 |
20090143967 | Motor Vehicle Having a Wheel-View Camera and Method for Controlling a Wheel-View Camera System - A motor vehicle has a wheel-view camera with a wide-angle lens and an image sensor. The wheel-view camera is mounted in the housing of a side view mirror and points in a downward direction such that the wheel-view camera captures a front wheel. An image processing unit is operatively connected to the wheel-view camera unit for receiving image data from the wheel-view camera. The image processing unit is configured to process the image data such that the image processing unit performs a wide-angle lens correction, an image rotation and a viewpoint conversion. A display unit is operatively connected to the image processing unit. The display unit receives processed image data from the image processing unit and displays an image of the front wheel. | 06-04-2009 |
20090210141 | Monitoring a Mobile Device - Devices, systems, and methods for monitoring traffic, such as vehicle traffic on a roadway, using identification information acquired using a Bluetooth protocol. A sensor is configured to scan for discoverable Bluetooth devices within a flow of vehicle traffic and to create a log of identified Bluetooth devices. A system includes multiple sensors at known locations along a route and is operable to identify a Bluetooth device identified at multiple sensors. | 08-20-2009 |
20090240424 | Open community model for exchanging information in dynamic environments - An open community model for information exchange enables individuals to plan and attain superior outcomes in a dynamic environment. A continually “world model” maintains information about the dynamic environment that is valuable for individuals of the open community. An open community model application publicizes a specification of relevant types of information it receives from suppliers and provides to consumers. Suppliers provide information consistent with the specification. Consumers utilize received information to reduce uncertainties or errors in the assumed environment so they can generate improved plans or improve their expected outcomes. Consumers give feedback to the open community model about the quality of information they received. A “world model” application combines information received to update and improve its understanding of the dynamic environment and its estimates of relevant parameters. The community model simplifies the creation and operation of information markets where innovative products are naturally selected and economically reinforced. | 09-24-2009 |
20090281714 | Traffic Congestion Estimation Based on Motion of Cellular Devices - A mechanism for estimating the traffic congestion is invented. The mechanism relies on information about the motion of cellular devices on roads. The existing information about the motion of cellular devices is used to estimate the motionability of upcoming traffic. The system can be used to issue traffic warnings, redirect traffic to non-congested routes and derive traffic statistics for research and development. | 11-12-2009 |
20090287405 | TRAFFIC DATA QUALITY - Techniques are described for traffic data quality. In an implementation, an electronic device provides a variety of functionality including functionality to determine position. The device may use determined position to ascertain geographic locations as collection points where traffic related data may be collected. In at least some embodiments, traffic data quality techniques combining both device side and server side technique are applied to data collected at the collections points. In an embodiment, communication of collected data by the device may be delayed to enable additional observations of vehicle movement, routing, position, and so forth. The additional observations during the delay enable the device to determine the validity of the collected data. | 11-19-2009 |
20090326791 | LOCAL DECISION POLICIES ABOUT THE SHARING OF SENSED DATA THAT ENHANCE PRIVACY AND LOWER COMMUNICATION COSTS FOR SERVICES THAT AGGREGATE DATA FROM PERSONAL DEVICES - Velocity information can be beneficial to various entities including other vehicles and a central traffic monitoring and routing system. Vehicles with sensors can serve as velocity probes to update speeds that are shared via a more global service. However, individuals may be reluctant to provide location and velocity information given privacy preferences. Local policies about sharing personal data are described that can be harnessed to enhance privacy while minimizing communication costs. The local data-sharing policies allow devices to monitor their own speeds and locations and to employ models and analyses that determine the value of sharing flow information with a larger service in accordance with privacy preferences, and to make local decisions as to when to respond to broadcasted queries for specific information, while minimizing the redundancy of signals from multiple vehicles. | 12-31-2009 |
20100010731 | ESTIMATION METHOD OF TRAFFIC INFORMATION - The present invention provides a method of estimating traffic information of a road section at a particular time point on the basis of the traffic information of the road at the time point or points before the particular time point and the traffic information of the adjacent roads. | 01-14-2010 |
20100036595 | METHOD AND SYSTEM FOR TRANSMITTING DATA TO A TRAFFIC INFORMATION SERVER - A method for transmitting data to a traffic information server includes obtaining, at a mobile vehicle, data including at least one of a vehicle speed and a vehicle location at a then-current time, and determining whether the data is redundant. Determining whether the data is redundant may be accomplished by at least one of comparing the data with other data previously transmitted to the traffic information server from an other mobile vehicle or determining whether the data falls within an expected range for a predetermined time interval. The method further includes transmitting the data, via a wireless communication system, to the traffic information server from the mobile vehicle if the data is determined to be non-redundant. Also disclosed herein is a system to perform the method. | 02-11-2010 |
20100049429 | METHOD FOR SENSING COVERING STATE ACCORDING TO VELOCITY AND SYSTEM FOR PROVIDING TRAFFIC INFORMATION USING THE SAME METHOD - Disclosed is a method for sensing a traveling state based on a speed. The method for sensing the traveling state based on the speed includes outputting a mean speed C for each link with respect to a number of total traversing times of a predetermined path, and updating a reference speed B with the outputted mean speed C, and measuring a speed A while traversing the predetermined path, and comparing the measured speed A with the updated reference speed B, thereby displaying the traveling state. | 02-25-2010 |
20100076671 | METHOD FOR PROVIDING A TRAFFIC PATTERN FOR NAVIGATION MAP DATA AND NAVIGATION MAP DATA - Methods and systems for providing a traffic pattern for a road segment of navigation map data on the basis of time series traffic data is provided. Reference time series are determined for the road segment to use to approximate the time series traffic data. A weighted combination of the reference time series is determined by determining weighted coefficients that determine how much a predetermined reference time series contributes to the combination of the reference time series for approximating the time series traffic data. The time series traffic data is then approximated using the weighted combination of the reference time series. The determined weighting coefficients are then linked to the road segment of the navigation map data. | 03-25-2010 |
20100094531 | Personalized traffic reports - A method and system are disclosed for providing personalized traffic reports. A personalized traffic report is a relatively short, audio-visual presentation that includes an audio narrative by an announcer describing the traffic conditions along a user's selected route, synchronized with a video presentation that includes maps with animations showing the traffic conditions and a visual representation of the announcer. A traffic data services provider determines traffic conditions that pertain to a user's identified particular route, i.e. from an origin to a destination. Then, the traffic data services provider forms an audio-video file that includes an audio narrative in the voice of an announcer that describes the traffic conditions along the user's route, along with a visual map representation of the user's route, a graphical indication of the traffic conditions along the route, and a visual representation of the announcer. The traffic data services provider transmits the audio-video file of the personalized traffic report to the user, who then plays it back on a computing device. | 04-15-2010 |
20100094532 | System for transmitting, processing, receiving, and displaying traffic information - A system for sharing and processing traffic information includes a number of traffic information computer systems within individual vehicles or devices and a virtual traffic information server on a mobile network. The traffic information computer systems are each connected through a peer-to-peer radio, cellular, Wi-Fi, or other similar types of communications network, and which each operate with a database for displaying road maps, with a database storing average speed data for directions of travel along roadways, and with a location sensor used to determine the location and average speed of the vehicle or device, which are transmitted to other vehicles. The virtual server returns average speed data for road segments, which is displayed on the road maps. The system includes, sharing average speed data calculated as well average speed data received from the plurality of vehicles to other vehicles, thereby enhancing the real-time communication of traffic data. | 04-15-2010 |
20100100307 | Universal GPS Traffic Monitoring System - A traffic data collection process and monitoring system that uses a plurality of GPS enabled mobile devices to transmit near at real-time traffic direction and speed information to a server and or/at real-time (sub 10 second latency). The sever processes the information thereby reducing the computational load and power consumption of the mobile devices. The system uses a Traffic Pattern Recognition software program that accurately recognizes only valid traffic data while filtering out unwanted traffic data. The system creates a Distributed Traffic Data Store database containing the average speeds for designated traffic monitoring points created for the region. During use, a request for traffic data containing the boundary data and the zoom level is sent from the mobile device to the server. The server then reviews the requests and determines with specific Distributed Traffic Data Store database contains the information. The server then creates a compressed file containing the traffic information relevant to the TMPs in the request and sends it to the mobile device. | 04-22-2010 |
20100114467 | SYSTEM AND METHOD FOR DETERMINING A COLLISION STATUS OF A VEHICLE - A system and method are provided to determine the collision status of a nearby vehicle or vehicles. If a nearby vehicle has been in a collision, responsive systems may be triggered automatically. Responses may include warning the driver of the host vehicle and/or warning drivers of other vehicles or centralized networks by, among other methods, V2V or V2I communications. Responses may also include automatically triggering countermeasures in the host vehicle. | 05-06-2010 |
20100185382 | DISPLAYING ROAD TRAFFIC CONDITION INFORMATION AND USER CONTROLS - Techniques are described for displaying or otherwise providing information to users regarding various types of road traffic condition information in various ways. The information may be provided, for example, as part of a user interface (or “UI”), which may in some situations further include one or more types of user-selectable controls to allow a user to manipulate in various ways what road traffic condition information is displayed and/or how the information is displayed. A variety of types of road traffic condition information may be presented to users in various manners, including by presenting information on graphically displayed maps for geographic areas to indicate various information about road conditions in the geographic area. In addition, provided controls may allow users to select particular times, select particular routes, indicate to perform animation of various types of changing traffic conditions over a sequence of multiple successive times, etc. | 07-22-2010 |
20100211300 | SYSTEM AND METHODS FOR GEOBOUNDARY BASED TRAFFIC MONITORING USING QUICK TEAR DOWN BOUNDARIES - A location based service and method configured to provide a mechanism for delivering traffic information to a subscribing user. The method is implemented on a computing infrastructure and includes setting up geo-boundaries at one or more predefined intervals. The method further includes receiving a signal from an active mobile device as it passes at least two of the geo-boundaries at the one or more predefined intervals, and determining a traffic incident from the received signal. | 08-19-2010 |
20100228467 | Traffic Flow Model to Provide Traffic Flow Information - Examples of maintaining or querying a traffic database to generate a traffic flow model to provide traffic flow information and determine a per-lane route for a vehicle to travel are disclosed. | 09-09-2010 |
20100268445 | FLEET MAINTENANCE METHOD AND IN-VEHICLE COMMUNICATION SYSTEM - A fleet maintenance method for generating a suggested speed for each vehicle in a fleet to maintain the vehicle in the fleet is provided. In the fleet maintenance method, vehicles are clustered into a plurality of sub-fleets, and in each sub-fleet, one vehicle is selected as a leader vehicle and the other vehicles are considered as member vehicles. Besides, a position coordinate and a speed of each vehicle in each sub-fleet are obtained, and the position coordinate is converted into a corresponding linear coordinate. In addition, a sub-fleet gravity center of each sub-fleet and a fleet gravity center of the entire fleet are calculated according to the linear coordinates. Moreover, a suggested speed of each leader vehicle is generated according to a gravity center distance of the leader vehicle, and a suggested speed of each member vehicle is generated. | 10-21-2010 |
20100286898 | APPARATUS FOR SUPPLYING ROAD CONDITIONS - An exemplary apparatus for supplying road conditions includes a detector, an information processing device, and a transmission device. The detector configured to detect current road conditions. The information processing device communicatively coupled to the detector for receiving information on the current road conditions. The information processing device stores predetermined information on road conditions and configured for comparing with the predetermined road conditions to obtain a comparison result. The transmission device communicatively coupled to the information processing device and configured for transmitting the comparison result to a predetermined recipient. | 11-11-2010 |
20100286899 | Combining Road and Vehicle Traffic Information - A computer-implemented method includes obtaining road sensor data reflecting speeds of traffic on road segments, transforming the road sensor data using vehicle probe data for the road segments reflecting vehicle speeds, and producing speed estimates for the road segments using the transformed road sensor data. The method can further include determining speeds for road segments between road sensors by smoothing data from sensors near the road segments. | 11-11-2010 |
20100318286 | METHOD OF CREATING A SPEED ESTIMATION - A method of creating a speed estimation representative of vehicle speed along one or more road segments. In at least one embodiment, the method includes obtaining at least reference speed data from a reference source of data and second speed data from a second source of data, wherein the second source is different from the reference and the speed data is indicative of vehicle speed along the or each road segment; using the reference speed data to verify the second speed data and modifying the second speed data according to the verification; and generating an estimation of vehicle speed for the or each road segment based upon the verified second speed data. | 12-16-2010 |
20100324806 | TRAVEL PATTERN INFORMATION OBTAINING DEVICE, TRAVEL PATTERN INFORMATION OBTAINING METHOD, AND TRAVEL PATTERN INFORMATION OBTAINING PROGRAM - Vehicle speed identification information for identifying vehicle speed of a vehicle on a road is obtained for a plurality of vehicles. Based on a distribution of the vehicle speed identification information, the vehicle speed identification information is classified into groups corresponding to motions of the vehicle. An occurrence probability of a motion of the vehicle is obtained based on the classification. | 12-23-2010 |
20110004397 | TRAVELING INFORMATION CREATING DEVICE, TRAVELING INFORMATION CREATING METHOD AND PROGRAM - A CPU of a navigation device transmits probe information including link traveling information and average vehicle speed information at every predetermined time to an information distribution center. On the other hand, when receiving the probe information, a CPU of the information distribution center reads the road type corresponding to each link ID and user's average vehicle speed during uncongested road traveling from the probe information, and determines the vehicle speed region corresponding to this link ID from a vehicle speed region determination table. Thereafter, the CPU of the information distribution center creates traffic information from this vehicle speed region and the probe information, stores it in a center side traffic information DB and statistically processes traffic information of a certain period to generate a link cost corresponding to a link ID and a time zone of a relevant vehicle speed region of statistical traffic information. | 01-06-2011 |
20110035139 | System for Monitoring Vehicle Use - A system for monitoring of vehicles and particularly heavy vehicles and their compliance with specific network (e.g. road) access conditions uses vehicle telematics solutions. The system includes an in-vehicle unit (IVU) associated with a vehicle being monitored. The IVU includes a receiver for receiving positioning signals, a processor for processing a time-marked log of vehicle data, a storage element for storing the time-marked log and a first wireless communication element for communicating time marked data to a Service Provider (SP) processing apparatus. One or more Service Providers operate Service Provider (SP) processing apparatus. The SP processing apparatus include a SP wireless communication element for receiving time-marked data from one or more IVUs and a SP processor for processing received data. The SP processor is adapted to compare received data from the time-marked log of a vehicle with one or more vehicle-use conditions applicable to that vehicle, and to generate a non-compliance report where the comparison indicates that non-compliant activity has occurred. A SP storage element stores non-compliance reports and relevant time-marked data. | 02-10-2011 |
20110035140 | Vehicle sensing system utilizing smart pavement markers - A roadway system is described, consisting of enhance, smart pavement markers. These smart pavement markers contain elements such as motion sensors, solar cells, radio receiver/transmitters, active lighting and processing capability. These markers can be configured in many ways, including as vehicle speed sensors, and information display systems. Such pavement marker systems can be installed with little or no roadway infrastructure preparation and may be useful for traffic data collection, law enforcement, and vehicle safety applications. | 02-10-2011 |
20110035141 | DISPLAYING ROAD TRAFFIC CONDITION INFORMATION AND USER CONTROLS - Techniques are described for displaying or otherwise providing information to users regarding various types of road traffic condition information in various ways. The information may be provided, for example, as part of a user interface (or “UI”), which may in some situations further include one or more types of user-selectable controls to allow a user to manipulate in various ways what road traffic condition information is displayed and/or how the information is displayed. A variety of types of road traffic condition information may be presented to users in various manners, including by presenting information on graphically displayed maps for geographic areas to indicate various information about road conditions in the geographic area. In addition, provided controls may allow users to select particular times, select particular routes, indicate to perform animation of various types of changing traffic conditions over a sequence of multiple successive times, etc. | 02-10-2011 |
20110054767 | Computer-implemented method for ensuring the privacy of a user, computer program product, device - A computer-implemented method and product ensures the privacy of a user and the utility of data communicated by a device, such as a vehicle telematics device, to a server, comprising receiving data at the device during the time period; processing, by the device, the received data; summarizing, by the device, the processed data in a matrix, wherein the rows and columns of the matrix define circumstances of movement of the device, wherein the matrix includes a plurality matrix-entries, and wherein each matrix-entry includes a distance covered by the device during the time period under a pair of said predefined circumstances of movement; and transmitting the summarized data from the device to the server. | 03-03-2011 |
20110098909 | SYMMETRIC AND INTERLOCKED REGIONAL TRAFFIC LIGHT CONTROL METHOD - A regional symmetric and interlocked traffic light control method includes: defining a first preferred point in a desired metropolitan area; determining a first axial average vehicle speed and a first axial preferred allowed travel time period for the first axial streets and a second axial average vehicle speed and a second axial preferred allowed travel time period for the second axial streets; obtaining a first vehicle travel distance and a second vehicle travel distance; determining a first control region according to the first preferred point, the first vehicle travel distance and the second vehicle travel distance; defining a second preferred point and a third preferred point adjacent to the first control region; controlling a plurality of traffic lights in the two adjacent control regions to respectively display green and red lights on the same axial streets in accordance with a preferred allowed travel time period and linking the traffic lights in said control regions by serializing. Therefore, a vehicle can pass through a plurality of adjacent control regions in accordance in its cruising speed and the traveling efficiency of the vehicle can be improved. | 04-28-2011 |
20110106416 | PREDICTING EXPECTED ROAD TRAFFIC CONDITIONS BASED ON HISTORICAL AND CURRENT DATA - Techniques are described for determining and using information regarding expected road traffic flow conditions information for vehicles traveling on roads. The expected road traffic flow conditions for a particular portion of a road may be generated by combining historical representative information about road traffic flow conditions for that road portion with current information about actual traffic flow on or near that road portion. The combination may, for example, provide benefits for estimating expected traffic flow conditions information for roads with structural flow obstructions that cause reduced traffic flow at certain road locations and times—for example, the expected traffic flow conditions information may be based at least in part on fitting or otherwise adapting partial actual traffic flow information about a vehicle's actual travel path to a historical travel profile for a road that includes representative traffic flow information for various combinations of road locations and time periods. | 05-05-2011 |
20110112748 | SYSTEM AND METHOD FOR EXCHANGING POSITIONING INFORMATION BETWEEN VEHICLES IN ORDER TO ESTIMATE ROAD TRAFFIC - The present invention discloses a method, system and computer program embarked in a vehicle, for estimating traffic conditions based on positioning information exchanged with other vehicles using wireless communication. A method in accordance with an embodiment of the invention includes: receiving positioning information repeatedly broadcast by at least one vehicle, the positioning information for each vehicle including: information related to a current location of the vehicle; and information identifying the vehicle; calculating based on at least two successive locations of a same identified vehicle, a current speed and a current direction for the vehicle; and estimating current traffic conditions based on current location, speed and direction of identified vehicles. | 05-12-2011 |
20110130947 | TRAFFIC PROFILING AND ROAD CONDITIONS-BASED TRIP TIME COMPUTING SYSTEM WITH LOCALIZED AND COOPERATIVE ASSESSMENT - This invention localizes traffic condition detection and classification to a vehicle. Vehicles work cooperatively to fuse their traffic condition assessments so as to produce larger geographical coverage and more reliable evidence of the conditions. The system can be executed on an onboard device which includes at least one of the following: GPS capabilities, connection connected to the vehicle to measure vehicle speed, or communication with a cell phone. In the example of the cell phone, speed can be computed from phone GPS, a GPRS/CDMA, or both. Otherwise, vehicle speed can be determined obtained from in-vehicle on-board diagnostic system (e.g. using the OBD-II protocol) or based on GPS and accelerometer readings. | 06-02-2011 |
20110137545 | OBTAINING ROAD TRAFFIC CONDITION DATA FROM MOBILE DATA SOURCES - Techniques are described for assessing road traffic conditions in various ways based on obtained traffic-related data, such as data samples from vehicles and other mobile data sources traveling on the roads, as well as in some situations data from one or more other sources (such as physical sensors near to or embedded in the roads). The assessment of road traffic conditions based on obtained data samples may include various filtering and/or conditioning of the data samples, and various inferences and probabilistic determinations of traffic-related characteristics of interest from the data samples. In some situations, at least some of the mobile data sources are configured to frequently acquire and store data samples, and to occasionally make multiple such data samples available together for use in the road traffic condition assessment (e.g., by acquiring a data sample every minute and by transmitting a group of stored data samples every 15 minutes). | 06-09-2011 |
20110160988 | SYSTEM AND METHOD FOR FASTER DETECTION OF TRAFFIC JAMS - Devices located with moving objects (e.g., people or cars) can function as probes of traffic conditions. One way that such probes can operate is by making sporadic reports (e.g., for example, after a given road segment is traversed, a report can be made). However, in such a reporting scheme, a traffic incident that prevents or delays completion of that road segment would go unreported until the probe finished the segment. Thus, these aspects provide methods and systems to detect unexpected conditions that prevent/delay completion of such road segments, and responsively generate an out-of-cycle report that can be used in alerting others of such condition. Progress on that segment can continue to be monitored, with periodic updates, when the segment ultimately is finished, the probe can send a final report for that segment. The report can contain data indicative of an average speed on the road segment (or the portion of it completed, when detecting an unexpected condition). | 06-30-2011 |
20110160989 | Route Calculation Method For A Vehicle Navigation System - Traffic information, including flow information and incident information, obtained through a traffic management system for providing and facilitating the exchange of traffic information between a remote location and a vehicle may be used in route calculation by a navigation device. The navigation device may recalculate a route based on anticipated user error. Alternatively, the navigation device may recalculate a route using received traffic information triggered by the receipt of a traffic information update, or triggered by the passage of an amount of time. The broadcast rate of traffic information updates may vary temporally (providing more frequent updates during peak commute times) or geographically (providing more frequent updates to metropolitan areas with increased traffic information needs). If route calculation is triggered by an elapsed amount of time, the amount of time may vary to be shorter during peak commute times. Additional route calculation techniques allow the incorporation of historical traffic information or the use of the most recent traffic information if incomplete traffic information is available. Still further route calculation techniques may calculate a best route by avoiding zigzagging or evaluating an assigned cost of a potential route. | 06-30-2011 |
20110202266 | REPRESENTATIVE ROAD TRAFFIC FLOW INFORMATION BASED ON HISTORICAL DATA - Techniques are described for automatically analyzing historical information about road traffic flow in order to generate representative information regarding current or future road traffic flow, and for using such generated representative traffic flow information. Representative traffic flow information may be generated for a variety of types of useful measures of traffic flow, such as for average speed at each of multiple road locations during each of multiple time periods. Generated representative traffic flow information may be used in various ways to assist in travel and for other purposes, such as to determine likely travel times and plan optimal routes. The historical traffic data used to generate the representative traffic flow information may include data readings from physical sensors that are near or embedded in the roads, and/or data samples from vehicles and other mobile data sources traveling on the roads. | 08-18-2011 |
20110224893 | LEARNING ROAD FEATURE DELAY TIMES BASED ON AGGREGATE DRIVER BEHAVIOR - Techniques are described for generating and using information regarding road traffic in various ways, including by obtaining and analyzing road traffic information regarding actual behavior of drivers of vehicles on a network of roads. Obtained actual driver behavior information may in some situations be analyzed to determine actual delays for vehicles encountering various particular road features in the network of roads, such as for identified decision points at which drivers face choices corresponding to possible alternative routes through the network of roads (e.g., intersections, highway exits and/or entrances, etc.) and/or for other traffic flow impediments. The identified and determined information from the analysis may then be used in various manners, including in some situations to assist in determining particular recommended or preferred routes of vehicles through the network of roads based at least in part on actual driver behavior information. | 09-15-2011 |
20110288757 | INFORMATION FILTERING AND PROCESSING IN A ROADWAY TRAVEL DATA EXCHANGE NETWORK - A traffic monitoring system includes one or more processors operable to collect location data from a third-party network having a mobile user, weight at least one element of the location data based on reliability, and generate traffic speed data at a roadway location based on the weighted data. The third-party network is one of a mobile communication network, a computer network, a television network, a radio network, and a road sign display network. The one or more processors are operable to deliver the traffic speed data at the roadway location to an alternate third-party network. The alternate third-party network is one of a mobile communication network, a computer network, a television network, a radio network, and a road sign display network. | 11-24-2011 |
20110288758 | MANAGEMENT OF TRAFFIC SIGNALS AT ROAD INTERSECTION TO AVOID BLOCKING VEHICLES - A computer controlled system for managing traffic signals at the intersection of at least two traffic lanes to avoid collisions between motor vehicles in intersecting lanes. An implementation with means for controlling traffic signals at the intersection to permit vehicles in each of the intersecting traffic lanes a time period to pass through the intersection, means for detecting the presence of a vehicle in the intersection beyond said permitted time period, and means responsive to a detection of the presence of the vehicle, for controlling the traffic signals to stop other vehicles from passing through the intersection. | 11-24-2011 |
20110307165 | METHOD FOR CREATING SPEED PROFILES FOR DIGITAL MAPS - Probe data collected at times of low traffic density is analyzed to derive a Raw Road Design Speed Limit (RRDSL, | 12-15-2011 |
20110307166 | METHOD FOR COMPUTING AN ENERGY EFFICIENT ROUTE - Probe data is analyzed to derive Longitudinal Speed Profiles (LSPs) and an Optimal Longitudinal Speed Profile ( | 12-15-2011 |
20110313644 | SYSTEM AND METHOD FOR DETECTION OF AVERAGE SPEED OF VEHICLES FOR TRAFFIC CONTROL - The invention relates to a method and a system for identifying moving objects by employing a tag, said tag comprising at least alphanumeric characters and said tag being extracted from pictures taken by cameras located in at least two different points within a certain distance comprising extracting alphanumeric characters of said tag from the pictures taken by at least two cameras; converting said alphanumeric characters into other new characters of another representation space; creating a string of said new characters for each of the tags extracted from the pictures taken by the cameras at different locations, said cameras being synchronized and said pictures taken by the cameras within a predetermined time interval; comparing the strings by associating a correlation score; inputting a threshold score; identifying the moving object if the correlation score is over the predetermined threshold score. | 12-22-2011 |
20110320112 | SOLAR OR WIND POWERED TRAFFIC MONITORING DEVICE AND METHOD - A system for monitoring the flow of vehicular traffic comprising: a plurality of detectors that detect the passage of a vehicle along a predetermined roadway; the detectors being powered by one of solar or wind power; at least one transmitter for transmitting the data relating to the passage of a vehicle at a predetermined point on a roadway; the transmitter being powered by solar or wind power; and a second receiver for receiving the transmitted data relating to the passage of a vehicle along a predetermined roadway for use by a motorist in determining a route of travel. A method for monitoring the flow of vehicular traffic for purposes of determining a route of travel for motorists comprising: determining traffic speed at least one point along a roadway using a plurality of detectors that detect the passage of a vehicle; the detectors being powered by one of solar or wind power, and transmitting the traffic speed using at least one solar powered transmitter for use by motorists in determining whether or not to select passage along the roadway containing the at least one point as a way to navigate through the region. | 12-29-2011 |
20120010804 | Method and System for Conclusively Capturing a Violation of the Speed Limit on a Section of Road - By means of the method according to the invention, a vehicle is detected when it drives into and out of a specified section of a roadway, the detection time is acquired, and an image recording in which the vehicle registration plate of the vehicle is detected is produced so as to be associated with each detection time. The image recordings in which the same vehicle registration plate was determined are correlated, and an average speed is determined from the difference of the associated detection times and the known length of the section of road and is compared with a specified maximum speed. If a speeding violation is determined, a high-resolution image recording of the driver of the vehicle is generated. | 01-12-2012 |
20120035840 | VEHICLE SPEED MONITOR - A vehicle speed monitor for monitoring the speed of a moving vehicle is provided to the vehicle at an entrance to a road. The vehicle speed monitor records instantaneous accelerations of the vehicle along three axes over time. The vehicle speed monitor may be implemented as a contact or contactless integrated circuit (IC) card. The vehicle speed monitor is returned at an exit from the road, and scalar instantaneous speeds of the vehicle are determined from the recorded instantaneous accelerations in the vehicle speed monitor. The scalar instantaneous speeds are compared to one or more speed limits between the entrance and the exit to determine any speed limit violation. The vehicle speed monitor may also function as an electronic toll card where a toll is determined from the entrance and the exit. At the exit, the driver of the vehicle is charged with a fine and a toll, if any. | 02-09-2012 |
20120059574 | VEHICLE SPEED INDICATION USING VEHICLE-INFRASTRUCTURE WIRELESS COMMUNICATION - An example traffic control system includes a vehicle unit associated with a vehicle on a highway, one or more roadside units proximate the highway, and a traffic controller. The vehicle unit transmits a vehicle speed to the roadside unit, when in wireless communication range. The roadside unit transmits the vehicle speed to the traffic controller. The traffic controller receives vehicle speed data from a plurality of vehicles, and determines a suggested speed for each vehicle. The suggested speed may be correlated with an average speed of vehicles on a portion of the highway, for example the same highway portion on which vehicle is located, or a highway portion towards which the vehicle is heading. | 03-08-2012 |
20120065873 | NAVIGATION DEVICE & METHOD - Embodiments of the present invention relate to a method of 5 determining speed information for one or more road segments in map data, comprising receiving ( | 03-15-2012 |
20120083995 | SYSTEM FOR TRANSMITTING, PROCESSING, RECEIVING, AND DISPLAYING TRAFFIC INFORMATION - A system for sharing and processing road condition information includes a number of road condition information computer systems within individual vehicles or devices and a virtual road condition information server on a mobile network. The road condition information computer systems are each connected through a peer-to-peer radio, cellular, Wi-Fi, or other similar communications network, and which each operate with a database for displaying road maps, with a database storing average speed data for directions of travel along roadways, and with a location sensor used to determine the location and average speed of the vehicle or device, which are transmitted to other vehicles. The virtual server returns average speed data for road segments, which is displayed on the road maps. The system includes sharing average speed data calculated as well average speed data received from the plurality of vehicles to other vehicles, thereby enhancing the real-time communication of road condition data. | 04-05-2012 |
20120083996 | Data Collection and Traffic Control Using Multiple Wireless Receivers - Methods, systems, and devices for monitoring roadway traffic. A method includes transmitting wireless signals from a plurality of roadside equipment (RSE) devices, including from a first RSE device and from a second RSE device that are located at separated positions of an intersection. The method includes receiving responses by the first RSE device and second RSE device from a wireless device. The responses include a unique identifier corresponding to the wireless device. The method includes determining a signal strength of each of the responses by the first RSE and the second RSE and transmitting data from the first RSE device and the second RSE device to a control system. The data includes the unique identifier, the signal strength of each of the responses, and times that the responses were received. The method includes determining traffic information associated with the wireless device based on the received data. | 04-05-2012 |
20120123667 | CROWD SOURCED TRAFFIC REPORTING - A traffic reporting service may allow for the generation of more reliable and accurate traffic reports, maps, and forecasts based on various data types and sources. Data sources include public sector sources, private entities, and end users providing crowd sourced data. Crowd sourced data is collected, verified, and used to generate a traffic report which is displayed to a user via a computing device. A user may use various information presented in the traffic report to make informed decisions when choosing travel routes and a departure time to reach a desired destination. | 05-17-2012 |
20120130625 | SYSTEMS AND METHODS FOR DETERMINING TRAFFIC INTENSITY USING INFORMATION OBTAINED THROUGH CROWDSOURCING - Systems and associated methods for utilizing crowdsourcing probes to obtain traffic information are described. Such traffic information includes location, date, time, speed, and speed limit information. Embodiments allow for the determination of traffic intensity, or road congestion, through the calculation of a road speed capacity factor. Embodiments provide that the traffic information and traffic intensity information may be visualized through a user interface. | 05-24-2012 |
20120150425 | DETERMINING ROAD TRAFFIC CONDITIONS USING MULTIPLE DATA SAMPLES - Techniques are described for assessing road traffic conditions in various ways based on obtained traffic-related data, such as data samples from vehicles and other mobile data sources traveling on the roads and/or from one or more other sources (such as physical sensors near to or embedded in the roads). The road traffic conditions assessment based on obtained data samples may include various filtering and/or conditioning of the data samples, and various inferences and probabilistic determinations of traffic-related characteristics of interest from the data samples. In some situations, the inferences include repeatedly determining current traffic flow characteristics and/or predicted future traffic flow characteristics for road segments of interest during time periods of interest, such as to determine average traffic speed, traffic volume and/or occupancy, and include weighting various data samples in various ways (e.g., based on a latency of the data samples and/or a source of the data samples). | 06-14-2012 |
20120158275 | REAL-TIME TRAFFIC SITUATION AWARENESS SYSTEM AND METHOD THEREOF - The disclosure provides a real-time traffic situation awareness system. In one embodiment, the real-time traffic situation awareness system receives driving data from a car, wherein the driving data comprises an image, GPS data, and gyroscope sensor data. The real-time traffic situation awareness system comprises an image processing unit, a feature extraction unit, a feature matrix database, a data grouping unit, and a situation awareness unit. The image processing unit processes the image to generate a processed image. The feature extraction unit generates a data point according to the processed image, the GPS data, and the gyroscope sensor data. The data grouping unit searches the feature matrix database for a plurality of feature groups of an optimal feature matrix corresponding to a geographic area according to the GPS data of the data point. The situation awareness unit analyzes the feature groups to generate traffic information. | 06-21-2012 |
20120158276 | VEHICLE DRIVING INFORMATION PROVISION APPARATUS AND METHOD - Disclosed herein is a vehicle driving information provision apparatus installed in a vehicle and configured to include a communication unit, a location information collection unit, a control unit and a warning delivery unit. The communication unit receives vehicle driving information from a server installed on a roadside, the vehicle driving information corresponding to a managing section of the server. The location information collection unit collects vehicle location information, including information about latitude, longitude and direction of the vehicle. If the vehicle driving information corresponds to a traffic situation that has occurred ahead of the vehicle based on the vehicle location information, the control unit determines whether the traffic situation is a dangerous situation using the vehicle driving information. If the control unit determines that the traffic situation is a dangerous situation, the warning delivery unit delivers a warning message corresponding to the vehicle driving information. | 06-21-2012 |
20120179358 | SYSTEM AND METHOD FOR AUTOMATED UPDATING OF MAP INFORMATION - The characteristics of two intersecting roadways are compared to determine whether an inference can be made as to whether there are traffic controls (e.g., stop signs) on one of the roadways. If a larger road with characteristically higher speed intersects with a small road with lower speed, the small road is determined to have a stop sign. A map database is updated with the information regarding the inferred traffic control, and that information is then usable for purposes such as trip planning. | 07-12-2012 |
20120221232 | METHOD AND APPARATUS FOR TRAFFIC MANAGEMENT - A method for determining travel time of a vehicle on a road, wherein the vehicle is operable within a mobile communication network, comprising: collecting historical communication events of a mobile user in order to obtain travel samples, wherein the historical communication events indicate when the mobile user travelled along a monitored road; determining a cell handover sequence from the historical communication events; determining from the cell handover sequence, one of more road segments of the monitored road; determining the travel time of the one or more road segments according to the travel time samples; selecting, for an undetermined road segment of the monitored road for which the real-time travel time is not determined from the collected historical communication events, a candidate mobile user that is most likely to appear on the undetermined road segment; actively positioning the candidate mobile user to obtain positioning information; and returning to the step of collecting communication events of a mobile user currently on a monitored road with the active positioning as one communication event for the candidate mobile user, to determine the real-time travel time of the undetermined road segment. | 08-30-2012 |
20120239282 | VEHICLE CONTROL DEVICE - Disclosed is a vehicle control device that generates a speed pattern of a vehicle in a predetermined traveling section and controls the vehicle on the basis of the speed pattern. The vehicle control device includes average traffic flow vehicle speed acquiring means for acquiring an average traffic flow vehicle speed in the predetermined traveling section, optimal low fuel consumption speed pattern generating means for generating a speed pattern which is optimized to reduce the fuel consumption of the vehicle in the predetermined traveling section on the basis of the average traffic flow vehicle speed, and control means for controlling the vehicle on the basis of the optimal low fuel consumption speed pattern. | 09-20-2012 |
20120253648 | APPARATUS AND METHOD FOR GENERATING TRAFFIC INFORMATION - Disclosed herein are an apparatus and method for generating traffic information. The apparatus includes a first information collection unit, a second information collection unit, a comparison and analysis unit, and a computation unit. The first information collection unit collects first sensed data, including first reference sampled data and a plurality of pieces of first surrounding sampled data from a first sensor unit. The second information collection unit collects second sensed data, including second reference sampled data and a plurality of pieces of second surrounding sampled data from a second sensor unit. The comparison and analysis unit determines similarity between the first sensed data and the second sensed data, extracts a first time from the first sensed data, and extracts a second time from the second sensed data. The computation unit calculates the vehicle's average speed. | 10-04-2012 |
20120277985 | METHOD OF ANALYZING POINTS OF INTEREST WITH PROBE DATA - A method of analyzing points of interest ( | 11-01-2012 |
20120296560 | Inferring a Behavioral State of a Vehicle - Trajectory data representing tracked positions of a vehicle along a trajectory having a start and end point is accessed. The trajectory data may include spatio-temporal information about the vehicle at different points along the trajectory. The trajectory may be divided into segments based, at least in part, on knowledge of inferred-parking locations. The segments may be map-matched to corresponding road segments. Additionally, historical data representing spatio-temporal travel patterns of vehicles learned from historical trajectories of vehicles corresponding to the map-matched-road segments may also be accessed. A behavioral state of the vehicle for a segment or position within a segment may be inferred, based at least in part, on (i) the vehicle's spatio-temporal information corresponding to the segment or position within a segment, (ii) knowledge of the map-matched-road segment, and (iii) the historical data. | 11-22-2012 |
20120296561 | USER INTERFACE METHOD FOR TERMINAL FOR VEHICLE AND APPARATUS THEREOF - A user interface method for a terminal for a vehicle is provided. The terminal obtains position information to detect a point of a road. A road image of a driving direction is obtained, a lanes of the road represented on the obtained road image is recognized, and a point of a road and lane in which the vehicle having the terminal arranged therein is detected. A virtual road image regarding the recognized lanes is generated, and the generated virtual lanes are added to the road image of the driving direction of the vehicle, and displayed. Traffic information for each lane and surrounding information (i.e. lane closure, construction, accident, etc.,) at the detected point of the relevant road are obtained, and the obtained information is displayed for each virtual lane. | 11-22-2012 |
20120316765 | System And Method For Improved Traffic Flow Reporting Using Satellite Digital Audio Radio Service (SDARS) And Vehicle Communications, Navigation And Tracking System - Systems and methods are provided for improved traffic flow reporting (e.g., system bandwidth conservation and timely traffic flow updates) using in-vehicle devices, service hub, and communications system for transmitting aggregated traffic flow data to the vehicles. In-vehicle devices store data relating to monitored segments of roadways (e.g., segment identifiers or location codes and designated range(s) of speed), and send messages to the hub when current vehicle speed is not within a selected range designated for the current segment of roadway where the vehicle is located. Vehicles can be configured to send messages based on various criteria. A selected vehicle or group of vehicles can be commanded to send a message to the hub. The hub provides updated traffic flow data based on the messages to the communications system for transmission to the vehicles. | 12-13-2012 |
20130006510 | Monitoring a Mobile Device - Devices, systems, and methods for monitoring traffic, such as vehicle traffic on a roadway, using identification information acquired using a Bluetooth protocol. A sensor is configured to scan for discoverable Bluetooth devices within a flow of vehicle traffic and to create a log of identified Bluetooth devices. A system includes multiple sensors at known locations along a route and is operable to identify a Bluetooth device identified at multiple sensors. | 01-03-2013 |
20130013181 | ROAD-TRAFFIC-BASED GROUP, IDENTIFIER, AND RESOURCE SELECTION IN VEHICULAR PEER-TO-PEER NETWORKS - A method, a computer program product, and an apparatus for wireless communication are provided. The apparatus adjusts a number of sets of identifiers in a plurality of sets of identifiers based on traffic information. In addition, the apparatus selects an identifier from a set of identifiers of the plurality of sets of identifiers based on the traffic information. Furthermore, the apparatus communicates using resources associated with the selected identifier. The traffic information may include at least one of direction of travel, map information, velocity, whether approaching an intersection, whether departing an intersection, location, a number of vehicles within a particular area, information from other vehicles, type of intersection, whether the intersection includes stop lights or stop signs, at least one computed value based on acquired traffic information, or information from other wireless devices. | 01-10-2013 |
20130018572 | APPARATUS AND METHOD FOR CONTROLLING VEHICLE AT AUTONOMOUS INTERSECTIONAANM JANG; Jeong-AhAACI DaejeonAACO KRAAGP JANG; Jeong-Ah Daejeon KR - Disclosed herein are an apparatus and method for controlling traffic at an autonomous intersection. A monitoring unit monitoring vehicles located within a predetermined service radius of an intersection. A collision zone information management unit classifies the service radius into a plurality of zones based on the results from the monitoring unit, and manages information about collision zones. A collision prediction unit predicts the possibility of collision of a target vehicle in the zone in which the target vehicle is located, based on vehicle information transmitted from the target vehicle, and calculates an estimated time of collision. A priority determination unit predetermines a priority of the target vehicle based on the estimated time of collision and calculates an expected entering time corresponding to the priority. A communication unit transmits control information about the target vehicle to the corresponding vehicles to control respective vehicles. | 01-17-2013 |
20130030681 | METHOD AND APPARATUS FOR UPDATING TRAVEL TIME ESTIMATION - A self-contained vehicular traffic travel time information system for a vehicle in an inter-vehicle ad-hoc network includes an on-board vehicular broadcasting unit for communicating with other vehicles within the inter-vehicle ad hoc network. A positioning device identifies the vehicle's position throughout a course of travel. An on-board vehicle processing unit stores road segments throughout the vehicle path of travel. The on-board vehicle processing unit determines a starting position and an ending position for each respective road segment. A length of time for traveling through each respective road segment is determined. A memory storage device stores the segmented road portions and the time of travel associated with each respective road segment. The on-board vehicular broadcasting unit disseminates the determined travel times of recently traveled road segments via a broadcast message to other vehicles within the inter-vehicle ad hoc network. | 01-31-2013 |
20130066542 | INTELLIGENT LASER TRACKING SYSTEM AND METHOD FOR MOBILE AND FIXED POSITION TRAFFIC MONITORING AND ENFORCEMENT APPLICATIONS - An intelligent laser tracking system and method for mobile and fixed position traffic monitoring and enforcement applications. The system disclosed herein can autonomously track multiple target vehicles with a highly accurate laser based speed measurement system or, under manual control via a touch screen, select a particular target vehicle of interest. In a mobile application the police vehicle speed is determined through the OBD II CAN port and updated for accuracy though an onboard GPS subsystem. The system and method of the present invention simultaneously provides both narrow and wide images of a target vehicle for enhanced evidentiary purposes. A novel, low inertia pan/tilt mechanism provides extremely fast and accurate target vehicle tracking and can compensate for geometrical errors and the cosine effect. | 03-14-2013 |
20130073193 | COLLABORATIVE TRAFFIC MONITORING - A collaborative traffic monitoring method is described. In an embodiment, a collaborative traffic monitoring system for use in a vehicle comprises an input for receiving GPS location data and a processing unit which generates speed data for a vehicle based on the received GPS location data. The system also includes a transmitter which broadcasts the speed data and a receiver which receives speed data broadcast by other vehicles. The received speed data is then used to display an indication of the road speeds ahead. | 03-21-2013 |
20130103295 | METHOD OF TRAFFIC CONGESTION ESTIMATION - Disclosed is a method of traffic congestion estimation including a speed detection step of detecting speed of a vehicle in a predetermined period of time and outputting the detection result; a frequency analysis step of analyzing a frequency of the result of the speed detection and outputting the power spectrum; a slope detection step of detecting a slope of a power spectrum and outputting the detection result; a time variation calculation step of calculating time variation of the slope and outputting the calculation result; and a traffic congestion estimation step of estimating occurrence of traffic congestion from the calculation result of the time variation of the slope and outputting the estimation result. | 04-25-2013 |
20130103296 | CONGESTION ESTIMATION DEVICE - Disclosed is a congestion estimation device including a speed detection unit configured to detect a speed of a host vehicle and then outputting a speed detection result, an inter-vehicle distance detection unit configured to detect an inter-vehicle distance between the host vehicle and other vehicle and then outputting an inter-vehicle distance detection result, a correlation calculation unit configured to calculate a correlation based on the speed detection result and the inter-vehicle distance detection result and then outputting a correlation calculation result, and a display unit configured to display the correlation calculation result or information relating to the correlation calculation result. | 04-25-2013 |
20130110386 | METHOD AND APPARATUS FOR PROVIDING ANALYSIS INDEX OF ROADWAY SECTION BASED ON ROAD AND TRAFFIC CONDITIONS | 05-02-2013 |
20130124074 | SELECTIVE EXCHANGE OF VEHICLE OPERATIONAL DATA - Velocity information can be beneficial to various entities including other vehicles and a central traffic monitoring and routing system. Vehicles with sensors can serve as velocity probes to update speeds that are shared via a more global service. However, individuals may be reluctant to provide location and velocity information given privacy preferences. Local policies about sharing personal data are described that can be harnessed to enhance privacy while minimizing communication costs. The local data-sharing policies allow devices to monitor their own speeds and locations and to employ models and analyses that determine the value of sharing flow information with a larger service in accordance with privacy preferences, and to make local decisions as to when to respond to broadcasted queries for specific information, while minimizing the redundancy of signals from multiple vehicles. | 05-16-2013 |
20130124075 | VEHICLE TRAFFIC FLOW DATA ACQUISITION AND DISTRIBUTION - Embodiments of the present invention provide a method, system and computer program product for vehicle traffic flow data acquisition and reporting for onboard vehicle navigation. In an embodiment of the invention, a method for vehicle traffic flow data acquisition and reporting for onboard vehicle navigation can include acquiring imagery of multiple vehicles traveling on a roadway between two locations and individually identifying the different vehicles in the imagery. An elapsed time of travel can be determined for the individually identified vehicles between the two locations and a rate of travel can be computed for each of the individually identified different vehicles based upon the elapsed time of travel. Thereafter, the rate of travel for at least one of the individually identified different vehicles can be broadcast to a subscriber for at least one of the two locations. | 05-16-2013 |
20130144517 | SYSTEM AND METHOD FOR MODIFYING SCHEDULES OF VEHICLES - A system includes an interface module, a simulation module, and a resolution module. The interface module determines a captured state of vehicles traveling in a transportation network according to associated schedules and a proposed modification to the schedules. The captured state represents locations of the vehicles in the transportation network at a selected time. The simulation module simulates movement of the vehicles according to the proposed modification to the schedules. The movement of the vehicles is simulated from the selected time of the captured state of the vehicles. The resolution module determines potential ramifications from the movement of the vehicles that is simulated. The potential ramifications are representative of a simulated change in travel of the vehicles due to the proposed modification. The resolution module is further configured to use the potential ramifications for use in determining whether to implement the proposed modification in actual travel of the vehicles. | 06-06-2013 |
20130158847 | CONFIGURABLE TRAFFIC ZONE CONTROL SYSTEM - A configurable traffic zone control system ( | 06-20-2013 |
20130191014 | VEHICLE SPEED DETERMINATION VIA INFRARED IMAGING - A system and method which detects and uses a point of contact between a vehicle's tire and the pavement as a reference point to improve the accuracy of vehicle speed detection in a motorized vehicle speed detection system. In one embodiment, a plurality of infrared images of a moving vehicle are received. Each of the images is separated in time by known intervals. The images are captured using an infrared camera which can be a single-band or multi-band camera which operates in an infrared wavelength band selected to enhance a contrast between the vehicle's tires and the road surface. For each image, a point of contact is determined where a same tire contacts the road surface. These points and the time interval separations are used to calculate the vehicle's speed. An alert signal is initiated to a traffic enforcement authority if the speed exceeds the road's speed limit. | 07-25-2013 |
20130204514 | ESTIMATING TIME TRAVEL DISTRIBUTIONS ON SIGNALIZED ARTERIALS - A system is provided for estimating time travel distributions on signalized arterials. The system may be implemented as a network service. Traffic data regarding a plurality of travel times on a signalized arterial may be received. A present distribution of the travel times on the signalized arterial may be determined. A prior distribution based on one or more travel time observations may also be determined. The present distribution may be calibrated based on the prior distribution. | 08-08-2013 |
20130204515 | TRAFFIC ACCIDENT DETECTION DEVICE AND METHOD OF DETECTING TRAFFIC ACCIDENT - The present invention provides a traffic accident detection device of detecting traffic accident that estimates a precise speed variation for a vehicle, and detects dangerous events similar to traffic accidents. A time series estimation unit ( | 08-08-2013 |
20130226442 | THREE-DIMENSIONAL TRAFFIC FLOW PRESENTATION - Traffic flow is viewed in mapping or navigation. A processor generates a two-dimensional map from a perspective view. The perspective view is at an angle, which is not a normal to the map, looking down on the two-dimensional map. At least one road or pathway represented on the two-dimensional map is identified. Traffic flow information is obtained for a plurality of locations along the at least one road or pathway. A line is projected along a third dimension on the two-dimensional map. The line is above the road or pathway from the perspective view. A height of the line is a function of the traffic flow information for the locations such that the height for a first of the locations is greater than for a second of the locations. The map is displayed with the line. | 08-29-2013 |
20130231851 | ELECTRONIC DEVICE AND METHOD FOR PROVIDING TRAFFIC INFORMATION TO MOBILE DEVICES - In an electronic device and a method for providing traffic information, traffic information of all roads are acquired from a traffic information server, then the traffic information is analyzed to obtain basic information of each road. When a service that provides traffic information of one or more roads is subscribed to by a mobile device, the electronic device sends the basic traffic information of the one or more roads to the mobile device. | 09-05-2013 |
20130245926 | Rush Hour Modeling for Routing and Scheduling - A rush hour modeling system that is configured for modifying existing travel time/distance data to reflect special traffic conditions, such as rush hour traffic conditions. The system is configured to receive information defining one or more time windows, geographic areas, and road segments in which special traffic conditions occur. The system is also configured to receive travel rules that reflect the special traffic conditions. The travel rules are used to modify a travel time/distance matrix to reflect the effect of the special traffic conditions on “normal” travel times and distances. Existing routing and scheduling systems can then use the modified travel matrix to plan and schedule routes for delivery vehicles more accurately. Additionally, the modified travel matrix can be used to model traffic conditions through a particular geographic area or on a particular road segment. | 09-19-2013 |
20130275032 | TRAFFIC MONITORING AND NOTIFICATION SYSTEM AND ASSOCIATED METHODS - A traffic monitoring and notification system for vehicles includes road devices to be spaced apart along a road, and a traffic management controller. A portion of the vehicles may carry an electronic device that transmits an electronic address associated therewith. Each road device detects vehicles traveling on the road, determines if each detected vehicle is carrying an electronic device, and if so, then detects the electronic address associated therewith. A vehicle detection signal is transmitted based on each detected vehicle, and an electronic address signal is transmitted based on each detected electronic address. The traffic management controller receives the vehicle detection signals and the electronic address signals, determines a traffic pattern of the vehicles on the road based on the vehicle detection signals, and transmits a respective travel notification signal to each electronic device transmitting the electronic address associated therewith to provide travel information to a driver. | 10-17-2013 |
20130275033 | NAVIGATION METHODS AND SYSTEMS - Lane speed profiles are determined for each of a plurality of individual lanes of a multi-lane road section. The plurality of individual lanes are lanes for a given direction of travel. The lane speed profiles are determined using real-time vehicle probe data. The speed profiles are used to determine a timing for provide an instruction to a user of a navigation apparatus to change lane. The timing may be determined to provide a quickest route through at least a part of the road section, to increase the time available for the user to perform the lane change, or to enable a user to pass an incident affecting a lane most quickly. | 10-17-2013 |
20130282264 | SYSTEMS AND METHODS FOR OBTAINING AND USING TRAFFIC FLOW INFORMATION - A method of determining historical lane speed profiles for each of a plurality of individual lanes of a multi-lane road section is described. The plurality of individual lanes are lanes for the same given direction of travel. The method involves collecting vehicle probe data relating to the movement of individual vehicles on the road section for a specific time of day, and using the probe data to derive an aggregate speed profile for travel along each lane at the relevant time. The method may involve using the historical lane speed profiles to provide lane guidance instructions to the user of a navigation apparatus. | 10-24-2013 |
20130289864 | IDENTIFYING IMPACT OF A TRAFFIC INCIDENT ON A ROAD NETWORK - A method and system for identifying impact of a traffic incident on a road network, wherein the impact may be measured in terms of a spatial-temporal-impact region, in terms of incident duration from the time the incident is reported to the time at which the affected road network returns to recurrent flow conditions, and in terms of a cumulative time delay of all affected drivers. | 10-31-2013 |
20130289865 | PREDICTING IMPACT OF A TRAFFIC INCIDENT ON A ROAD NETWORK - A method and system for predicting impact of traffic incidents on a road network by using a classification scheme to identify a known impact classes associated with captured traffic data. | 10-31-2013 |
20130297196 | VEHICULAR DRIVING ASSIST APPARATUS, METHOD, AND VEHICLE - A driving assist apparatus for a vehicle includes an obtaining portion that obtains a speed of each of a plurality of vehicles, and a target speed calculating portion that calculates a target speed based on a plurality of speeds obtained by the obtaining portion and respective degrees of influence of the plurality of speeds on the target speed. The target speed calculation portion sets the degree of influence of a lower speed to be larger than the degree of influence of a higher speed. | 11-07-2013 |
20130311076 | METHOD OF GENERATING EXPECTED AVERAGE SPEEDS OF TRAVEL - A method of generating expected average speeds of travel across one or more segments in the area covered by an electronic map, each segment representing a navigable segment in the area covered by the map and having associated therewith: an average speed of travel across that segment; segment data comprising at least one jam probability, the jam probability indicating the likelihood of a jam on that segment; and a jam speed indicative of the speed of travel on that segment when it is considered jammed. The method comprises using the segment data to predict whether a jam condition exists on at least one or each of the segments; and outputting the expected average speed of travel across these segments as: a) a first speed, where a jam condition is predicted to exist, the first speed being the jam speed for the relevant segment or a speed based thereon, or b) a second speed, where a jam condition is not predicted, the second speed being the average speed for the relevant segment or a speed based thereon. | 11-21-2013 |
20130317730 | METHOD FOR IMPROVING THE RELIABILITY OF SPEED LIMIT INFORMATION FOR ON-BOARD SYSTEMS - A method for assessing the quality of the information contained in a database of a remote server storing the speed limit values of various segments of which a road network is composed, in which the speeds in these segments of vehicles having geolocation devices and devices for communicating with the distant server are recorded in a speed database. The server management system takes into account the speed database in order to select the vehicles which, over a predetermined period of time, have travelled at least one predetermined segment; determines the average maximum speed of travel of said vehicles in the segment over the period of time; compares this average maximum speed with the limit value recorded in an authorized speed limit database; assesses the value of the difference between these two values and, if this difference exceeds a given threshold, triggers a monitoring procedure to monitor the segment concerned. Also discloses is an interface device for implementing this method. | 11-28-2013 |
20140005916 | REAL-TIME TRAFFIC PREDICTION AND/OR ESTIMATION USING GPS DATA WITH LOW SAMPLING RATES | 01-02-2014 |
20140032090 | VEHICLE BEHAVIOR PREDICTION APPARATUS AND VEHICLE BEHAVIOR PREDICTION METHOD - A vehicle behavior prediction apparatus includes: a storage device that stores a plurality of pieces of behavior characteristic information associating a vehicle behavior with a characteristic of time series variation in travel condition information, the plurality of pieces of the behavior characteristic information being divided into a plurality of patterns corresponding to the different traffic conditions in a preceding location preceding a predetermined location; a selection unit that selects, as corresponding behavior characteristic information, the behavior characteristic information having a pattern corresponding to a current traffic condition from among the stored behavior characteristic information on the basis of the travel condition information obtained upon arrival of the vehicle in the preceding location; and a prediction unit that predicts the vehicle behavior in the predetermined location by comparing the corresponding behavior characteristic information with the time series variation in the currently obtained travel condition information. | 01-30-2014 |
20140032091 | TREND BASED PREDICTIVE TRAFFIC - A method for predicting traffic is disclosed. The method is a trend based extrapolation method that uses real time traffic data and historic traffic data to generate a predictive traffic product. The predictive traffic product provides expected traffic speeds for the short term future, for example, between two to twelve hours into the future. | 01-30-2014 |
20140039782 | DETERMINING A SPATIOTEMPORAL IMPACT OF A PLANNED EVENT ON TRAFFIC - Systems and methods are provided for determining an impact of a planned event. Traffic flow velocity is measured at each of a plurality of traffic sensors over a period of time before the planned event, with each traffic sensor having an associated geographical location. A plurality of measured traffic flow velocities for each traffic sensor are stored on a non-transitory computer readable medium. A traffic flow velocity at each traffic sensor is measured at each of a plurality of representative times within a defined time period including a known start time and an expected end time of the event. A threshold velocity is calculated from the stored traffic flow velocities for each traffic sensor corresponding to each representative time. For each representative time, a set of traffic sensors is determined at which the measured traffic flow velocity during the defined time period is less than the threshold velocity. | 02-06-2014 |
20140052367 | OPERATING A DRIVER ASSISTANCE SYSTEM OF A MOTOR VEHICLE AND DRIVER ASSISTANCE SYSTEM - A method is provided for operating a driver assistance system of a motor vehicle that includes, but is not limited to determining of a current speed and determining a current speed of further road users located in a longitudinal direction of the motor vehicle in front of the motor vehicle. In the event the determined current speed of the motor vehicle does not exceed a first predetermined threshold value does not exceed a second predetermined threshold value, a repeated determining of the current speed of the road user located directly in front of the motor vehicle takes place. In the event that the determined current speed of the road user does not exceed the second predetermined threshold value and the determined current speeds the determined further road users do not exceed the second predetermined threshold value, a repeated determining of the current speed. | 02-20-2014 |
20140095059 | METHOD TO DETERMINE TRAFFIC CHARACTERISTICS IN ROAD TRAFFIC - A method for determining road traffic characteristics utilizing movement data of vehicles which have communication devices trackable by radio positioning. The data includes time and place data regarding acceleration and braking maneuvers recorded by the communication devices. Chronological progression of acceleration and braking maneuvers is evaluated with respect to the occurrence of a predetermined characteristic pattern for a specific traffic characteristic. When such a pattern is detected and is linked to the location at which the maneuvers took place, this location is determined to be the location of the traffic characteristic. A report regarding the characteristic and its location is submitted to a central data collection point. In the central data collection point, the reports are evaluated. When a threshold number of similar reports from various users regarding the traffic characteristic at a certain location is exceeded, then this characteristic is classified as being reliably determined at the corresponding location. | 04-03-2014 |
20140107911 | USER INTERFACE METHOD FOR TERMINAL FOR VEHICLE AND APPARATUS THEREOF - A user interface method for a terminal for a vehicle is provided. The terminal obtains position information to detect a point of a road. A road image of a driving direction is obtained, a lanes of the road represented on the obtained road image is recognized, and a point of a road and lane in which the vehicle having the terminal arranged therein is detected. A virtual road image regarding the recognized lanes is generated, and the generated virtual lanes are added to the road image of the driving direction of the vehicle, and displayed. Traffic information for each lane and surrounding information (i.e. lane closure, construction, accident, etc.,) at the detected point of the relevant road are obtained, and the obtained information is displayed for each virtual lane. | 04-17-2014 |
20140114556 | TRAFFIC PREDICTION USING REAL-WORLD TRANSPORTATION DATA - Real-time high-fidelity spatiotemporal data on transportation networks can be used to learn about traffic behavior at different times and locations, potentially resulting in major savings in time and fuel. Real-world data collected from transportation networks can be used to incorporate the data's intrinsic behavior into a time-series mining technique to enhance its accuracy for traffic prediction. For example, the spatiotemporal behaviors of rush hours and events can be used to perform a more accurate prediction of both short-term and long-term average speed on road-segments, even in the presence of infrequent events (e.g., accidents). Taking historical rush-hour behavior into account can improve the accuracy of traditional predictors by up to 67% and 78% in short-term and long-term predictions, respectively. Moreover, the impact of an accident can be incorporated to improve the prediction accuracy by up to 91%. | 04-24-2014 |
20140121954 | APPARATUS AND METHOD FOR ESTIMATING VELOCITY OF A VEHICLE - Disclosed is an apparatus and a method for estimating velocity of a vehicle. The apparatus includes a surrounding environment information acquisition unit that acquires surrounding environment information of the vehicle from at least one sensor; a distance information extraction unit that extracts, from the surrounding environment information, distance information between the vehicle and objects in the vicinity of the vehicle; a group setting unit that classifies and groups the distance information according to a preset reference; a velocity calculation unit that calculates relative velocities between the vehicle and the objects for each group set; and a velocity estimation unit that estimates the velocity of the vehicle based on velocity values having the highest generation frequency from among the calculated relative velocities for each group. | 05-01-2014 |
20140136090 | VEHICLE TERMINAL APPARATUS AND METHOD FOR CONTROLLING THE SAME - A vehicle terminal apparatus and method for controlling the apparatus that receives vehicle location information, registers a service based on service notification information subsequent to receiving the service notification information, and extracts traffic information based on the vehicle location information is provided. | 05-15-2014 |
20140149030 | Detecting Unrepresentative Road Traffic Condition Data - Techniques are described for assessing road traffic conditions in various ways based on obtained traffic-related data, such as data samples from vehicles and other mobile data sources traveling on the roads and/or from one or more other sources (such as physical sensors near to or embedded in the roads). The road traffic conditions assessment based on obtained data samples may include various filtering and/or conditioning of the data samples, and various inferences and probabilistic determinations of traffic-related characteristics of interest from the data samples. In some situations, the inferences include repeatedly determining current traffic flow characteristics and/or predicted future traffic flow characteristics for road segments of interest during time periods of interest, such as to determine average traffic speed, traffic volume and/or occupancy, and include weighting various data samples in various ways (e.g., based on a latency of the data samples and/or a source of the data samples). | 05-29-2014 |
20140172283 | AVERAGE VEHICLE SPEED CALCULATION SYSTEM AND AVERAGE VEHICLE SPEED CALCULATION METHOD - An average vehicle speed calculation system and an average vehicle speed calculation method thereof are provided. The average vehicle speed calculation system comprises a calculation module and a mobile body. The mobile body includes a body speed detector, a radar speed detector and a transceiver. The body speed detector detects a body speed. The radar speed detector detects at least one speed of an adjacent vehicle. The transceiver connects to the calculation module via a network, and transmits the body speed and the at least one speed of the adjacent vehicle to the calculation module. The calculation module calculates an average vehicle speed according to the body speed and the at least one speed of the adjacent vehicle. | 06-19-2014 |
20140195138 | ROADWAY SENSING SYSTEMS - A number of roadway sensing systems are described herein. An example of such is an apparatus to detect and/or track objects at a roadway with a plurality of sensors. The plurality of sensors can include a first sensor that is a radar sensor having a first field of view that is positionable at the roadway and a second sensor that is a machine vision sensor having a second field of view that is positionable at the roadway, where the first and second fields of view at least partially overlap in a common field of view over a portion of the roadway. The example system includes a controller configured to combine sensor data streams for at least a portion of the common field of view from the first and second sensors to detect and/or track the objects. | 07-10-2014 |
20140200797 | Eco-friendly intelligent traffic detection system - An eco-friendly intelligent traffic detection system is provided, the traffic detection system is based on wireless network architecture. The system is linked to a navigation network, and reminds drivers of road conditions, the system can also be linked to mobile base station, in order to achieve a purpose of rational planning, a government department of transportation can manage and analyze the road conditions by uploading data. A purpose of the present invention is realized by: locating a vehicle by a built-in navigation system and a GIS system; recording average vehicle speeds and calculating effective speeds of the mobile devices within a certain range; the present invention has advantages of low cost, environment protection, etc. | 07-17-2014 |
20140207362 | CENTER-SIDE SYSTEM AND VEHICLE-SIDE SYSTEM - An object of the present invention is to provide a technology capable of estimating a waiting time at an energy refilling facility for each of drive types. A center-side system includes a center-side receiver that receives, from a vehicle-side system, probe vehicle position information and drive type information that is information regarding a drive type of a probe vehicle. Then, the center-side system includes: a traffic condition estimation unit that estimates a traffic condition, which includes a drive type-classified number of vehicles, based on the probe vehicle position information and the drive type information, which are received by the center-side receiver; and a center-side transmitter that transmits, to an outside, the traffic condition estimated by the traffic condition estimation unit. | 07-24-2014 |
20140278034 | SYSTEM AND METHOD FOR IMPROVED TRAFFIC FLOW REPORTING USING SATELLITE DIGITAL AUDIO RADIO SERVICE (SDARS) AND VEHICLE COMMUNICATIONS, NAVIGATION AND TRACKING SYSTEM - Systems and methods are provided for improved traffic flow reporting (e.g., system bandwidth conservation and timely traffic flow updates) using in-vehicle devices, service hub, and communications system for transmitting aggregated traffic flow data to the vehicles. In-vehicle devices store data relating to monitored segments of roadways (e.g., segment identifiers or location codes and designated range(s) of speed), and send messages to the hub when current vehicle speed is not within a selected range designated for the current segment of roadway where the vehicle is located. The hub provides updated traffic flow data based on the messages to the communications system for transmission to the vehicles. Vehicles can be configured to send messages based on various criteria. One or more selected vehicles can be commanded to send a message to the hub. Vehicles can respond to location-specified content in broadcast data when they determined themselves to be in the specified location. | 09-18-2014 |
20140278035 | REAL-TIME TRAFFIC CONDITION MEASUREMENT USING NETWORK TRANSMISSION DATA - In embodiments of the present invention improved capabilities are described for identifying a first location, at time one, of a plurality of automobiles using cell phone tower triangulation to locate a cell phone within each of the plurality of automobiles, identifying a second location, at time two, for each of the plurality of automobiles using cell phone tower triangulation to locate the cell phone within each of the plurality of automobiles, calculating a vehicle speed for each of the plurality of automobiles using the first and second locations already identified, and creating a traffic condition measure for a route in proximity to the first and second locations. The computer program product may repeat this process in real-time to calculate a real-time traffic condition measure that may be a traffic density measure the computer program product may use to predict a travel time. | 09-18-2014 |
20140288811 | TRAFFIC CONDITION MONITORING SYSTEM, METHOD, AND STORAGE MEDIUM - A traffic condition monitoring system, provided in a base station installed by a side of a road for monitoring a traffic condition based upon communication signals transmitted from mobile terminals in a plurality of vehicles traveling on the road, includes a receiver part operable to receive the communication signals transmitted from the mobile terminals in the respective vehicles to output received signals, a speed/direction estimation part operable to estimate traveling speeds and traveling directions of the respective vehicles based upon the received signals, and a traffic condition analysis part operable to determine effective traveling speeds of the respective vehicles in each traveling direction, to calculate an average traveling speed of a group of vehicles in each traveling direction, and to analyze a traffic condition in each traveling direction based upon the average traveling speed of the group of vehicles in each traveling direction. | 09-25-2014 |
20140303882 | APPARATUS AND METHOD FOR PROVIDING INTERSECTION COLLISION-RELATED INFORMATION - Disclosed herein are an apparatus and method for providing intersection collision-related information. The apparatus for providing intersection collision-related information includes a surrounding information acquisition unit, a collision-related information calculation unit, and a collision-related information provision unit. The surrounding information acquisition unit acquires intersection traffic information including vehicle heading information, vehicle turning frequency information, vehicle trajectory information and vehicle speed information from one or more of a road sensor provided at an intersection and a vehicle sensor provided in a vehicle. The collision-related information calculation unit calculates intersection collision-related information including the degree of vehicle collision risk that is calculated using the intersection traffic information. The collision-related information provision unit provides the calculated intersection collision-related information to a user. | 10-09-2014 |
20140309914 | LEARNING ROAD NAVIGATION PATHS BASED ON AGGREGATE DRIVER BEHAVIOR - Techniques are described for generating and using information regarding road traffic in various ways, including by obtaining and analyzing road traffic information regarding actual behavior of drivers of vehicles on a network of roads. Obtained actual driver behavior information may in some situations be analyzed to identify decision point locations at which drivers face choices corresponding to possible alternative routes through the network of roads (e.g., intersections, highway exits and/or entrances, etc.), as well as to track the actual use by drivers of particular paths between particular decision points in order to determine preferred compound links between those decision point locations. The identified and determined information from the analysis may then be used in various manners, including in some situations to assist in determining particular recommended or preferred routes of vehicles through the network of roads based at least in part on actual driver behavior information. | 10-16-2014 |
20140316687 | REAL-TIME TRAFFIC CONDITION MEASUREMENT USING NETWORK TRANSMISSION DATA - In embodiments of the present invention improved capabilities are described for identifying a first location, at time one, of a plurality of automobiles using cell phone tower triangulation to locate a cell phone within each of the plurality of automobiles, identifying a second location, at time two, for each of the plurality of automobiles using cell phone tower triangulation to locate the cell phone within each of the plurality of automobiles, calculating a vehicle speed for each of the plurality of automobiles using the first and second locations already identified, and creating a traffic condition measure for a route in proximity to the first and second locations. The computer program product may repeat this process in real-time to calculate a real-time traffic condition measure that may be a traffic density measure the computer program product may use to predict a travel time. | 10-23-2014 |
20140316688 | ESTIMATING TIME TRAVEL DISTRIBUTIONS ON SIGNALIZED ARTERIALS - A system is provided for estimating time travel distributions on signalized arterials. The system may be implemented as a network service. Traffic data regarding a plurality of travel times on a signalized arterial may be received. A present distribution of the travel times on the signalized arterial may be determined. A prior distribution based on one or more travel time observations may also be determined. The present distribution may be calibrated based on the prior distribution. | 10-23-2014 |
20140336914 | SYSTEM AND METHOD FOR PROCESSING, RECEIVING, AND DISPLAYING TRAFFIC INFORMATION - A system for sharing and processing traffic information includes a number of traffic information computer systems within individual vehicles or devices and a virtual traffic information server on a mobile network. The traffic information computer systems are each connected through a peer-to-peer radio, cellular, Wi-Fi, or other similar types of communications network, and which each operate with a database for displaying road maps, with a database storing average speed data for directions of travel along roadways, and with a location sensor used to determine the location and average speed of the vehicle or device, which are transmitted to other vehicles. The virtual server returns average speed data for road segments, which is displayed on the road maps. The system includes sharing average speed data calculated as well average speed data received from the plurality of vehicles to other vehicles, thereby enhancing the real-time communication of traffic and/or road condition data. | 11-13-2014 |
20140365104 | VEHICLE DRIVING CONTROL SYSTEM - A driving control system has a position/speed information detecting section for detecting the position and speed of a host vehicle, a communication unit for acquiring the position and speed information of another vehicle, a proximity position estimating section that estimates a proximity position at which the host vehicle and the other vehicle approach each other and a proximity position changing unit that, when the host vehicle and the other vehicle are travelling on the same lane at the same time, changes the proximity position to a changed proximity position outside of a waiting time generation area. A travelling plan generation section generates a travelling plan while the other one of the host-vehicle and the other vehicle enters the waiting time generation area. A communication unit transmits the travelling plan to the other vehicle, and a travel driving unit executes the driving of the host vehicle according to the travelling plan. | 12-11-2014 |
20150012206 | Method and Apparatus for Determining Traffic Status - To ascertain traffic status data, a speed of a vehicle is acquired multiple times at predefined time intervals. The respective acquired speed is assigned to a first speed range when the respective acquired speed of the vehicle is greater than at least one predefined speed threshold. Furthermore, a first count is increased when the respective acquired speed is assigned to the first speed range. The respective acquired speed is assigned to a second speed range when the respective acquired speed of the vehicle is less than the at least one speed threshold, and a second count is increased when the respective acquired speed is assigned to the second speed range, wherein a holding phase is recognized while the respective acquired speed has a speed value in a predefined range around the value zero once or multiple times in succession. During the recognized holding phase, the acquired speeds having the speed value in the predefined range around the value zero are not taken into consideration for a predefined non-consideration number of speed acquisition periods with respect to the adaptation of the second count. | 01-08-2015 |
20150019117 | METHOD FOR REGULATING THE DISTANCE OF A VEHICLE FROM A PRECEDING VEHICLE - A method for regulating a distance of a vehicle from a preceding vehicle (vehicle ahead) based on available information for the subject vehicle's speed, for the distance and for the speed of the vehicle ahead and on data regarding route information includes determining a fuel-saving situation for a fuel saving momentum utilization phase, and precomputing a consumption optimal speed profile for undisturbed travel. The method further precomputes additional separation requirement to the vehicle ahead that is required to be able to fully implement the momentum utilization phase, and builds up the required additional separation prior to the fuel-saving situation, wherein the additional separation is built up, preferably substantially uniformly, over a separation build-up distance that is longer than the precomputed momentum utilization phase distance and/or is built up with a driver-acceptable, convoy-stabilizing, defined small speed reduction relative to the current speed of the vehicle. The momentum utilization phase on reaching the fuel-saving situation. | 01-15-2015 |
20150025784 | INTELLIGENT FORWARD COLLISION WARNING SYSTEM - In an intelligent forward collision warning system that takes into account not only a first preceding vehicle traveling immediately ahead of the ego vehicle but also a second preceding vehicle traveling immediately ahead of the first preceding vehicle, a warning signal is produced upon detecting a critical state of the first or second preceding vehicle or an external condition that is predicted to cause the first preceding vehicle and the ego vehicle to be in a same lane with the first time to collision (TTC) below a prescribed value. | 01-22-2015 |
20150039214 | SYSTEM AND METHOD FOR MONITORING AND UPDATING SPEED-BY-STREET DATA - System and method for identifying speeding violations, comprising determining a current speed and a current location of a vehicle, determining a posted speed limit for the current location from a speed-by-street database, comparing the current speed of the vehicle to the posted speed limit, and evaluating whether the current speed exceeds the posted speed limit. Errors are identified in the speed-by-street database by storing a plurality of speeding violation records, wherein the speeding violation records each include a speeding event location; analyzing the speeding violation records to identify one or more speeding event locations having multiple speeding violations; comparing a posted speed limit at the one or more speeding event locations having multiple speeding violations to corresponding speed limit data in the speed-by-street database; and identifying one or more speed limit entries in the speed-by-street database that do not match the posted speed limit. | 02-05-2015 |
20150094941 | FILTERING ROAD TRAFFIC DATA FROM MULTIPLE DATA SOURCES - Techniques are described for assessing road traffic conditions in various ways based on obtained traffic-related data, such as data samples from vehicles and other mobile data sources traveling on the roads and/or from one or more other sources (such as physical sensors near to or embedded in the roads). The road traffic conditions assessment based on obtained data samples may include various filtering and/or conditioning of the data samples, and various inferences and probabilistic determinations of traffic-related characteristics of interest from the data samples. In some situations, the inferences include repeatedly determining current traffic flow characteristics and/or predicted future traffic flow characteristics for road segments of interest during time periods of interest, such as to determine average traffic speed, traffic volume and/or occupancy, and include weighting various data samples in various ways (e.g., based on a latency of the data samples and/or a source of the data samples). | 04-02-2015 |
20150120175 | SYSTEMS AND METHODS FOR ESTIMATING TRAFFIC SIGNAL INFORMATION - Systems and methods for estimating traffic signal information are provided. According to one aspect, positioning system data is obtained from a plurality of vehicles. Each data set includes the position and the velocity of a vehicle as functions of time. For an intersection having a traffic signal, an average acceleration of the vehicles when leaving the intersection is estimated, and an average deceleration of the vehicles when approaching the intersection is estimated. For each of a subset of the vehicles, a stop duration at the intersection is estimated based on the average acceleration, the average deceleration, and the positioning system data for the respective vehicle. A duration of a red phase of the traffic signal is estimated based on the stop duration of each of the subset of the vehicles. | 04-30-2015 |
20150120176 | SYSTEMS AND METHODS FOR DISTANCE AND CONGESTION-AWARE RESOURCE DEPLOYMENT - Computer-implemented systems and methods are disclosed for distance and congestion-aware resource deployment. In some embodiments, a method is provided to estimate a vehicle deployment region. The method includes constructing a graph data structure using at least in part a single invocation of a form of Dijkstra's algorithm. The method additionally includes partitioning an angular space centered on a vehicle location into a plurality of angular space regions, the vehicle location corresponding to a current or potential location of the vehicle. The method also includes selecting, for at least three of the plurality of the partitioned angular space regions, a geographical location within the angular space region, wherein each selected geographical location in an angular space region is a geographical location furthest from the vehicle location, and wherein each selected geographical location was determined, using the graph data structure, to be reachable from the vehicle location within a specified maximum cost. The method further includes forming a polygon representing a vehicle deployment region from the selected geographical locations. | 04-30-2015 |
20150308847 | METHOD OF PROCESSING POSITIONING DATA - A server arranged to process GPS data to generate enhanced map data is disclosed, and comprises a plurality of navigable segments representing segments of a navigable route in an area covered by a map, the server connected with a wireless telecommunications transceiver arranged to receive GPS fixes by wireless telecommunication from a plurality of navigation devices and send the received GPS fixes to the server, the server comprising a processor arranged to generate at least one speed profile for each segment from the GPS fixes from at least two of the plurality of navigation devices, each speed profile comprising an expected speed of travel through the segment, and the server arranged to subsequently cause the transceiver to send the speed profiles to the navigation devices. | 10-29-2015 |
20160003631 | TIME-EFFICIENT TRAFFIC ROUTING SYSTEM - An improved vehicle navigation system and method provides a route plan or alternative route based at least in part on evolved state information (e.g., a second traffic state, occurring some time after a first traffic state) from which time-efficiencies may be realized relative to navigation in a previous traffic state. Optionally, the route plan may identify an intermediate destination (e.g., such as a refueling or recharging station) and the schedule may allocate time for customer activities at the intermediate destination. | 01-07-2016 |
20160035221 | Systems and Methods for Traffic Guidance Nodes and Traffic Navigating Entities - A system includes one or more traffic guidance nodes (TGNs) and one or more mobile traffic navigating entities (TNEs). The traffic guidance nodes transmit updated information about the local traffic to the one or more mobile traffic navigating entities when the one or more mobile traffic navigating entities are within a range of the one or more traffic guidance nodes. | 02-04-2016 |
20160071412 | METHODS AND SYSTEMS FOR REAL-TIME ADVANCED CONGESTION IDENTIFICATION AND WARNING - The present disclosure relates to a system and method for locating slow or stopped vehicles on a roadway and alerting drivers approaching the back of a queue, and in particular to intelligent transportation systems and traffic management. | 03-10-2016 |
20160078757 | MAP GENERATION SYSTEM, MAP GENERATION DEVICE, MAP GENERATION METHOD, AND PROGRAM - A map generation system includes: an extraction unit that collects vehicle speed information, which includes at least a speed, acceleration, and deceleration, from a vehicle and that extracts rapid deceleration information, which includes a first location where a rapid deceleration event satisfying predetermined conditions has occurred, and a traveling direction of the vehicle at the time when the rapid deceleration event has occurred from the collected vehicle speed information; a storage unit that stores map data; a division unit that generates mesh map data by dividing the map data stored in the storage unit into a plurality of meshes in a predetermined size and a predetermined number of divisions; and an estimation unit that estimates a location that requires caution when the vehicle travels therethrough, as a caution-required place, based on the rapid deceleration information extracted by the extraction unit and the mesh map data generated by the division unit. | 03-17-2016 |
20160086486 | DRIVE ASSIST APPARATUS - Provided is a drive assist apparatus: based on signal indication information on a traffic signal installed at at least one intersection located ahead of a self-vehicle in a travelling direction of the self-vehicle, distance information from the self-vehicle to the at least one intersection, and a running speed of the self-vehicle, a recommended speed at which the self-vehicle can pass through the at least one intersection during a period in which the traffic signal installed at the at least one intersection is green is calculated and is notified to the driver. In addition, when a difference obtained by subtracting an actual running distance from a predicted running distance in a case where the self-vehicle runs at the recommended speed exceeds a first threshold value, it is determined that the road has a traffic jam and the notification of the recommended speed is terminated. | 03-24-2016 |
20160098924 | Systems and Methods for Estimating Traffic Signal Information - Traffic signal information is estimated based on positioning system data obtained from a plurality of vehicles. Each data set includes the position and the velocity of a vehicle as functions of time. For an intersection having a traffic signal, an average acceleration of the vehicles when leaving the intersection is estimated, and an average deceleration of the vehicles when approaching the intersection is estimated. For each of a subset of the vehicles, a stop duration at the intersection is estimated based on the average acceleration, the average deceleration, and the positioning system data for the respective vehicle. A duration of a red phase of the traffic signal is estimated based on the stop duration of each of the subset of the vehicles. | 04-07-2016 |
20160102993 | METHOD AND SYSTEM FOR PROVIDING TRAVEL TIME INFORMATION - Location technologies are combined with other information systems to provide augmented information for individuals such as a traveler in an automobile. | 04-14-2016 |
20160104376 | Probe Based Variable Speed Sign Value - Systems, methods, and apparatuses are disclosed for predicting or estimating the value of a variable speed sign (VSS). A variable speed sign is identified. Probe data is collected at one or more vehicles in proximity to the variable speed sign. The speeds of the vehicles are included in or derived from the probe data. A statistical analysis is performed on the probe data. A speed limit value for the variable speed sign is determined based on the statistical analysis. | 04-14-2016 |
20160148511 | TERMINAL DEVICE - A first terminal device is disclosed that is mountable in a first vehicle. The first terminal device comprises: an acquirer that acquires first information on the first vehicle; a receiver that receives a packet signal from a second terminal device, the packet signal including second information on a second vehicle in which the second terminal device is mounted; a controller that selects a first plurality of driving supports that are capable of being provided to a driver of the first vehicle among a second plurality of driving supports, based on the first information and the second information; and a display that displays each of images representing each of the first plurality of the driving supports in more detail as priority given to each of the first plurality of the driving supports is higher. | 05-26-2016 |
20160171886 | SYSTEM AND METHOD FOR PROCESSING, RECEIVING, AND DISPLAYING TRAFFIC INFORMATION | 06-16-2016 |
20160379488 | METHOD AND APPARATUS FOR PROVIDING A TUNNEL SPEED ESTIMATE BASED ON PROBE DATA - An approach is provided for determining tunnel speed for a vehicle travelling through a tunnel. A tunnel processing platform aggregates probe data associated with at least one vehicle into at least one tunnel path based, at least in part, on a network geometry topology for at least one tunnel. The tunnel processing platform also designates at least one probe point collected upstream of the at least one tunnel as at least one starting point of the at least one tunnel path and at least one temporary probe point as at least one endpoint of the at least one tunnel path, wherein the at least one temporary probe point is downstream of the at least one tunnel. It then determines at least one temporary tunnel speed for the at least one tunnel path based, at least in part, on the timestamp for the at least one probe point and the current time associated with the at least one temporary probe point. | 12-29-2016 |
20160379489 | Determination of a Free-Flow Speed for a Link Segment - A method comprising determining speed-time cluster application histogram data set for a link segment that comprises a plurality of speed-time cluster application histogram data elements, each speed-time cluster application histogram data element identifying a speed-time cluster and an applicable duration of the speed-time cluster for the link segment throughout a histogram duration, for each speed-time cluster application histogram data element, determining a free-flow speed that is representative of a non-congestion speed indicated by the speed-time cluster, determining a historically normalized free-flow speed for the link segment that is a weighted average of the free-flow speed determined for each speed-time cluster application histogram data element weighted by the applicable duration of the speed-time cluster application histogram data element, and identifying a transit speed of the link segment as being the historically normalized free-flow speed is disclosed. | 12-29-2016 |
20180023973 | EXTRAPOLATING SPEED LIMITS WITHIN ROAD GRAPHS | 01-25-2018 |
20180025634 | VEHICLE GROUP MANAGEMENT APPARATUS, VEHICLE GROUP MANAGEMENT METHOD, COMPUTER READABLE MEDIUM, AND VEHICLE GROUP DISPLAY APPARATUS | 01-25-2018 |