| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 340916000 | Intersection normally under local controller | 33 |
| 20100283631 | Smart Stop Sign System - A stop sign system that promotes safer, more orderly and more efficient vehicular and pedestrian traffic at intersections, which are barely or not eligible for traffic signal lights, by integrating a simple and easy-to-understand new lighting system into the familiar stop sign with automatic and manual controls. This system also promotes safer school crossings, as well as intersections with emergency situations and construction activity. | 11-11-2010 |
| 20150302741 | Traffic Signal Display and Method - The present invention provides a system and method for displaying information at a traffic signal. The system includes a computer system coupled to the computer system controlling the traffic signal to time the display of information on a separate monitor located adjacent a traffic signal. The displayed information can include such things as advertising, notices of public interest such as an Amber alert, and/or upcoming traffic conditions. The timing of the displayed information is such as to not interfere with attention needed for a person to navigate through the traffic signal. | 10-22-2015 |
| 20160019783 | Stretched Intersection and Signal Warning System - One embodiment of a traffic intersection lane and signal system for improving intersection capacity and safety. Through traffic is stopped by signal means ( | 01-21-2016 |
| 20160055744 | SYSTEMS AND METHODS FOR TRAFFIC EFFICIENCY AND FLOW CONTROL - Systems and methods are provided for managing traffic efficiency. The systems and methods involve receiving, at one or more mobile devices, vehicle information for one or more vehicles traveling in a transit system, the one or more mobile devices located in the one or more vehicles. The systems and methods involve transmitting, over one or more communications networks, the vehicle information from the one or more mobile devices to one or more remote servers that are configured to control one or more traffic control mechanisms based on the vehicle information. | 02-25-2016 |
| 340917000 | Controller responsive to traffic detectors | 22 |
| 20090027230 | Method for Displaying Dynamically Determined Priority Lanes to Customers Returning Vehicles to a Vehicle Rental Company - A method for displaying dynamically determined priority lanes for customers returning vehicles to a vehicle rental company. The method includes identifying a vehicle being returned by a customer to a vehicle rental company by an identification device and dynamically determining directions for the customer based on at least one of vehicle and customer specific parameters. The dynamically determined priority lanes are displayed to the customer in real time using a sign board, a display panel, etc. | 01-29-2009 |
| 20090167562 | TRAFFIC LIGHT CONTROL SYSTEM FOR A HIGH FLOW INTERSECTION - The present invention relates to a traffic light control system for a high flow intersection comprising a CCU (Central Control Unit) and a plurality of surveillance cameras for monitoring the traffic condition in the intersection and on the lanes going out of the intersection, wherein the surveillance cameras capture traffic flow images in the intersection and on the outgoing lanes, which are converted by an interface circuit and sent to the CCU for processing, wherein the CCU determines whether an outgoing lane is in congestion according to the processed images, switches and keeps on red lights for corresponding directions when the outgoing lane is determined to be in congestion, and resumes the former lighting mode after the congestion is dissipated. Such a control system may, when an outgoing lane is determined to be in congestion, automatically switches and keeps on red lights of corresponding incoming lanes to prevent waiting vehicles from pulling in the intersection, thereby allowing the congestion to be dissipated. | 07-02-2009 |
| 20090231160 | RFID Intelligent Traffic Signaling - A system and method for regulating the flow of traffic at a roadway intersection having one or more traffic signals by positioning a processor in the vicinity of the intersection to store cycle times of the traffic flow directions, mounting an RFID reader in the vicinity of each traffic signal in communication with the processor, interrogating with the RFID reader an RFID tag on each RFID-tagged vehicle at the roadway intersection to count the number of RFID-tagged vehicles present in each traffic flow direction at the roadway intersection, calculating an unused time slice of the cycle time for a first traffic flow direction at the intersection; reducing the cycle time for the first traffic flow direction in accordance with the unused time slice; and, increasing the cycle time for a second traffic flow direction at the intersection in accordance with the unused time slice. | 09-17-2009 |
| 20100156669 | METHOD FOR RUNNING VEHICLES DETECTING NETWORK AND SYSTEM THEREOF - Provided are a method for running a network for vehicle detection and a system thereof. Each vehicle detecting device is classified into a plurality of groups based on information provided from the vehicle detecting devices and control information that activates or deactivates components of the corresponding vehicle detecting devices is set for each group based on the information. Power of a signal transmitting the information is set for each vehicle detecting device. | 06-24-2010 |
| 20100194595 | LIGHTING SYSTEM WITH TRAFFIC MANAGEMENT CAPABILITIES - The present lighting system adds detection capabilities to perceive the presence and measure the velocity of objects such as automobiles, trucks, pedestrian and other users, to lighting modules for transportation applications like traffic signal, pedestrian control, rails signal, street light, message board and speed monitoring board. For example, a Light Emitting Diode (LED) has the capability to be used as lighting source for illumination as a first function and also be pulsed or modulated as a source for the detection sub-system as a second function. | 08-05-2010 |
| 20100309023 | Traffic Control System - A virtual road loop detector has a traffic control system that sends out a signal identifying location and intersection. The traffic control system, used for efficiently switching a traffic control switch, includes an intersection control module that communicates with a vehicle control module in order to determine if the traffic switch changes. The intersection control module is designed to send information regarding the intersection, which provides a virtual loop detector that assists in identify incoming vehicles and relevant switch requests from those vehicles. The virtual loop detector is a theoretical loop and defined by a pre-determined dimension from the intersection. The vehicle control module is provided to identify location and analyze information received from the intersection control system, such as proximity to or within the virtual loop detector. A light switch request may be sent by the incoming vehicle when the vehicle receives signals from the intersection and is traveling toward that same intersection. The intersection control module would then receive any information and light switch requests from the vehicle or any other incoming traffic. An analysis is performed by the intersection control module with regard to various incoming traffic information and requests in order to determine if the traffic light changes from a light schedule. | 12-09-2010 |
| 20100321210 | ADJUSTING SYSTEM AND METHOD FOR TRAFFIC LIGHT - An adjusting system for traffic lights includes a number of image capture units, a processing unit, and a storage system. The number image capture units capture a number of car images. The storage system examines the number of car images to find license plates in each car image, counts the number of the cars, obtains the status of the traffic lights according to the number of the cars, and manages status of the traffic lights correspondingly. | 12-23-2010 |
| 20110043378 | TRAFFIC CONTROL SYSTEM - A traffic control system comprises at least one signal unit, at least one detector, control means for controlling the timings of signals displayed by the at least one signal unit in dependence upon output from the at least one detector, and means for determining the position of the or each detector. | 02-24-2011 |
| 20110175753 | Robotic influenced self scheduling F.L.O.W. trafic management system - A traffic management system is disclosed that tells motorist how fast to go in order to make it through a traffic signal while it is in green phase. A Fast Lane On Warning (FLOW) sequencer is in synchronization with traffic phases sequencer (sequencing Red, Green, Yellow, Left Turn and the like) with both sequencers having service cycle period ‘Pi’ . The start times of both sequences are appropriately offset from one another. Sensors up road from the signal provide data on approaching vehicles number per time to a processor that synthesizes the data for one or more “fast” lanes in one or more directions. Using that data, the processor influences the signal and FLOW sequencers as well as emplaced and/or mobile on-board readouts to optimize phase openings and traffic distribution and traffic activity including:
| 07-21-2011 |
| 20110316719 | INTERSECTION SAFETY DRIVING SYSTEM - A vehicle sensor and a human sensor are comprised to a traffic sign and the road surface indicator, and warning is displayed in mark, indicate lamp where a driver is easy to make viewing. With intersection safety driving system | 12-29-2011 |
| 20130321174 | FIELD OF VIEW TRAFFIC SIGNAL PREEMPTION - Approaches for issuing preemption requests. The boundaries of a geo-window are repeatedly determined based on locations and headings of a vehicle as the vehicle is traveling along a roadway. The methods and systems determine whether or not any one of a plurality of intersections is located within the boundaries of the geo-window in response to changed boundaries of the geo-window. In response to determining that one of the plurality of intersections is located within the boundaries of the geo-window, a preemption request is transmitted from the vehicle to an intersection controller at the one of the plurality of intersections. | 12-05-2013 |
| 20140022094 | MAGNETIC FIELD COMMUNICATION ARRANGEMENT AND METHOD - An automotive communication method includes installing a sensor within a vehicle such that the sensor is submerged in a liquid during operation of the vehicle and/or substantially surrounded by a metallic structure during operation of the vehicle. A long wave magnetic signal is transmitted from the sensor. The signal is indicative of a condition sensed by the sensor. The signal is wirelessly received at a controller disposed within the vehicle. Receipt of the signal at the controller is responded to by adjusting a display and/or a setting within the vehicle. | 01-23-2014 |
| 20140070963 | TRAFFIC CONTROLLED DISPLAY | 03-13-2014 |
| 20160019784 | TRAFFIC LIGHT SYSTEM AND METHOD - The present invention is a system and method for dynamically and accurately allocating green light time of a traffic light at a given intersection by counting the number of vehicles located in an approach to a given intersection. A signal controller radio transceiver of a stationary intersection mounted control unit (CU) receives identifying signals transmitted by the on board vehicle radio transceiver of vehicles located at an approach to this intersection. A signal controller interface processing unit of the CU at the given intersection is operable to disregard signals transmitted by vehicles located at one or more upstream intersections and by pedestrians and passengers of a common motor vehicle. The number of vehicles located at an approach is thereby counted, allowing the CU to dynamically allocate green light time of a corresponding traffic light in accordance with traffic arrangement, for example per approach or per signal group, and design preferences. | 01-21-2016 |
| 20160027299 | SELF-CONFIGURING TRAFFIC SIGNAL CONTROLLER - Embodiments describe new mechanisms for signalized intersection control. Embodiments expand inputs beyond traditional traffic control methods to include awareness of agency policies for signalized control, industry standardized calculations for traffic control parameters, geometric awareness of the roadway and/or intersection, and/or input of vehicle trajectory data relative to this intersection geometry. In certain embodiments, these new inputs facilitate a real-time, future-state trajectory modeling of the phase timing and sequencing options for signalized intersection control. Phase selection and timing can be improved or otherwise optimized based upon modeling the signal's future state impact on arriving vehicle trajectories. This improvement or optimization can be performed to reduce or minimize the cost basis of a user definable objective function. | 01-28-2016 |
| 20160042641 | SMART AND SCALABLE URBAN SIGNAL NETWORKS: METHODS AND SYSTEMS FOR ADAPTIVE TRAFFIC SIGNAL CONTROL - Scalable urban traffic control system has been developed to address current challenges and offers a new approach to real-time, adaptive control of traffic signal networks. The methods and system described herein exploit a novel conceptualization of the signal network control problem as a decentralized process, where each intersection in the network independently and asynchronously solves a single-machine scheduling problem in a rolling horizon fashion to allocate green time to its local traffic, and intersections communicate planned outflows to their downstream neighbors to increase visibility of future incoming traffic and achieve coordinated behavior. The novel formulation of the intersection control problem as a single-machine scheduling problem abstracts flows of vehicles into clusters, which enables orders-of-magnitude speedup over previous time-based formulations and is what allows truly real-time (second-by-second) response to changing conditions. | 02-11-2016 |
| 20160148507 | TRAFFIC SYSTEM FOR MONITORING, ANALYZING, AND MODULATING TRAFFIC PATTERNS - A signal tracker can include: a housing; at least two signal detectors in the housing; a computing component in the housing and operably coupled with the at least two signal detectors so as to obtain signal data therefrom; a memory device in the housing communicatively coupled with the computing component so as to receive the signal data and store the signal data thereon; and a transmitter in the housing communicatively coupled with the computing component so as to be capable of transmitting the signal data to a network. The signal tracker can include one or more of the listed components. The housing can be a weatherproof housing. The signal tracker can include the at least two signal detectors being selected from the group consisting of a cellular detector, a Wi-Fi detector, or a Bluetooth detector. | 05-26-2016 |
| 20190147738 | HIGHLY ACCURATE SYSTEM FOR WRONG-WAY DRIVING DETECTION AND DETERRENCE | 05-16-2019 |
| 340922000 | Density determines split | 2 |
| 20140368358 | SMART AND SCALABLE URBAN SIGNAL NETWORKS: METHODS AND SYSTEMS FOR ADAPTIVE TRAFFIC SIGNAL CONTROL - Scalable urban traffic control system has been developed to address current challenges and offers a new approach to real-time, adaptive control of traffic signal networks. The methods and system described herein exploit a novel conceptualization of the signal network control problem as a decentralized process, where each intersection in the network independently and asynchronously solves a single-machine scheduling problem in a rolling horizon fashion to allocate green time to its local traffic, and intersections communicate planned outflows to their downstream neighbors to increase visibility of future incoming traffic and achieve coordinated behavior. The novel formulation of the intersection control problem as a single-machine scheduling problem abstracts flows of vehicles into clusters, which enables orders-of-magnitude speedup over previous time-based formulations and is what allows truly real-time (second-by-second) response to changing conditions. | 12-18-2014 |
| 20160027300 | SELF-CONFIGURING TRAFFIC SIGNAL CONTROLLER - Embodiments describe new mechanisms for signalized intersection control. Embodiments expand inputs beyond traditional traffic control methods to include awareness of agency policies for signalized control, industry standardized calculations for traffic control parameters, geometric awareness of the roadway and/or intersection, and/or input of vehicle trajectory data relative to this intersection geometry. In certain embodiments, these new inputs facilitate a real-time, future-state trajectory modeling of the phase timing and sequencing options for signalized intersection control. Phase selection and timing can be improved or otherwise optimized based upon modeling the signal's future state impact on arriving vehicle trajectories. This improvement or optimization can be performed to reduce or minimize the cost basis of a user definable objective function. | 01-28-2016 |
| 340923000 | Extension of time | 2 |
| 20130285840 | CONTROL OF TRAFFIC SIGNAL DUE TO OBSTRUCTED VIEW - Traffic signal timing may be altered as a function of determining occluded signal viewing. More particularly, processing units may determine that a view of a traffic signal by a person is obstructed by a large vehicle located on a first ingress path to a roadway intersection with a second ingress path. The traffic signal controls the right of way of the first ingress path, and the person with the obstructed view is travelling along the first ingress path toward the intersection and is located behind the large vehicle relative to a view sightline of the person to the traffic signal. In response to the occluded view determination, a transition of the traffic signal may be delayed from a current visual display of a proceed signal to a subsequent visual display of a stop signal, until an end of a delay period. | 10-31-2013 |
| 20140055286 | CONTROL OF TRAFFIC SIGNAL DUE TO OBSTRUCTED VIEW - Traffic signal timing may be altered as a function of determining occluded signal viewing. More particularly, processing units may determine that a view of a traffic signal by a person is obstructed by a vehicle located on a first ingress path to a roadway intersection with a second ingress path. The traffic signal controls the right of way of the first ingress path, and the person with the obstructed view is travelling along the first ingress path toward the intersection and is located behind the vehicle relative to a view sightline of the person to the traffic signal. In response to the occluded view determination, a transition of the traffic signal may be delayed from a current visual display of a proceed signal to a subsequent visual display of a stop signal, until an end of a delay period. | 02-27-2014 |
| 340925000 | Pedestrian control | 6 |
| 20090146841 | SYSTEM AND METHOD FOR AUTOMATICALLY ADJUSTING TRAFFIC LIGHT - A system, program product and method for automatically adjusting the traffic light of a traffic light controlled intersection. Personal data relative to a pedestrian cross walking the intersection, including walking speed, and the current speed of a vehicle approaching the intersection are simultaneously acquired. Both the personal data and the vehicle current speed are processed to generate cross walk control signals, such as indicators of risk of collision between vehicle and pedestrian. Where the risk warrants action, the “stop” condition of the traffic light is enable to warn the vehicle to stop. Traffic control signals are also generated to control the duration of the “walk” condition for slow moving pedestrians. | 06-11-2009 |
| 20100214127 | PEDESTRIAN ACTIVATED STOP SIGN - An embodiment of the present invention is an illuminated stop sign for allowing pedestrians to control traffic. The system comprises a fixed support assembly; a pedestrian activated mechanism; a timer set for a predetermined period of time when the pedestrian activated mechanism is activated; and an octagonal display nonremovably mounted to the fixed support assembly comprising a backlight within the display and a display surface comprising a word “STOP” visible when the backlight is illuminated and substantially not visible when the backlight is not illuminated, the backlight being illuminated until the predetermined period of time is expired. | 08-26-2010 |
| 20110309952 | ACCESSIBLE PEDESTRIAN SIGNAL SYSTEM - Methods and systems are provided for conflict monitoring and error detection in accessible pedestrian signal systems. A primary conflict monitor and error detector is configured to control output of audible and vibrotactile pedestrian signal indications. The primary conflict monitor and error detector monitors the current traffic state, and verifies audio and vibrotactile control signals against the current traffic state and user settings to determine whether to enable output of audible and vibrotactile pedestrian signal indications. The primary conflict monitor and error detector may transmit information about the audio and vibrotactile control signals to a secondary conflict monitor and error detector, which verifies the information received against the current traffic state and user settings, and inhibits output of audible and vibrotactile pedestrian signal indications in the event of a detected conflict or error. | 12-22-2011 |
| 20130271296 | Devices and Methods for Controlling a Change of a Status of Traffic Light at a Crosswalk - The change of the status of a traffic light at a crosswalk is controlled based on an impaired individual's location with respect to the crosswalk. An appropriate alert indicating the status of the traffic light is determined based at least on the location of the impaired individual. The type of impairment may also be used in determining the appropriate alert, The appropriate alert is generated to inform the impaired individual of the status of the traffic light. | 10-17-2013 |
| 20140306836 | ADVANCED ACCESSIBLE PEDESTRIAN SYSTEM FOR SIGNALIZED TRAFFIC INTERSECTIONS - Pedestrian call systems with bidirectional communication between pedestrian call stations and traffic controllers are arranged so as to detect system errors. Communications can be provided over power conductors, and systems can be configured and monitored using a web browser. In one example, traffic systems are provided with Ethernet interfaces that can be used for bidirectional communication over power lines. | 10-16-2014 |
| 20180025633 | ADVANCED ACCESSIBLE PEDESTRIAN SYSTEM FOR SIGNALIZED TRAFFIC INTERSECTIONS | 01-25-2018 |
| 340926000 | Manual setting of cycle length and split times | 1 |
| 20090243885 | SYSTEM, METHOD AND APPARATUS FOR MANUAL CONTROL OF A TRAFFIC LIGHT - An application for a traffic control system includes an enclosure for containing the traffic control system that has an access door with a lock for controlling access to the enclosure through the access door. The traffic control system has an automatic mode of operation and a manual mode of operation, whereas the traffic control system automatically transitions a state of a plurality of traffic lights when in the automatic mode of operation and cycles the state of the plurality of traffic lights in response to a change signal when in the manual mode of operation. An automatic mode activation switch is housed within the enclosure. Activation of the automatic mode activation switch changes the state of the traffic control system from the automatic mode of operation into the manual mode of operation. A watchdog timer is coupled to the traffic control system, The watchdog timer is reset when the automatic mode activation switch is operated and in response to the change signal. If the watchdog timer expires, the traffic control system switches to the automatic mode of operation. | 10-01-2009 |
