Abstract: The present disclosure relates to a computer implemented method, a computer program product, and a computer system for verifying the road network of map. An embodiment of the present invention provides a method for verifying a road network of a map. The method comprises: determining, based on locations of a set of points in the map, a trajectory distance of a trajectory between a start point and an end point in the set of points on the map; determining a route distance between the start point and the end point in the road network of the map; and verifying the road network by comparing the trajectory distance and the route distance.

Abstract: An investigation assist device is connected to cameras installed at a plurality of intersections respectively so as to communicate with the cameras. The investigation assist device includes a processor and a storage that records road map information including the plurality of intersections and captured video of each of the cameras in association with camera information and intersection information. The processor retrieves a vehicle using the captured video of each of the cameras installed at one or more intersections within a predetermined distance range from the intersection where the event has occurred, based on input information including date and time information when the event has occurred, the intersection information where the event has occurred, and the feature information of the vehicle having caused the event, the captured videos corresponding to the date and time information.

Abstract: Systems and methods of directed item consumption recommendations are disclosed which include generating, with a server, empirical transition matrix data that includes row data for a first item and column data for a second item, and an entry in the empirical transition matrix data for a number of users that acquire the second item after the first item, generating, with the server, metadata transition matrix data by partitioning items for each item metadata type, setting a uniform transition probability for all items in the partition, and summing the uniform transition probabilities across all metadata types, generating, with the server, transition probability matrix data by multiplying the metadata transition matrix data with a weight parameter, adding the result to the empirical transition matrix data, and normalizing each row, and providing item recommendations to a user computing device communicatively coupled to the server according to the generated transition probability matrix data.

Abstract: The present disclosure relates to a computer implemented method, a computer program product, and a computer system for verifying the road network of map. An embodiment of the present invention provides a method for verifying a road network of a map. The method comprises: determining, based on locations of a set of points in the map, a trajectory distance of a trajectory between a start point and an end point in the set of points on the map; determining a route distance between the start point and the end point in the road network of the map; and verifying the road network by comparing the trajectory distance and the route distance.

Abstract: A network of intermediate device systems may be detachably coupled to an illumination pole electrically connected to a power source. The intermediate device system may comprise a housing with an exterior surface and an interior cavity configured to receive at least one electrical device. The intermediate device system may comprise a control unit communicatively coupled to a processor and configured to receive and process substantially real-time information from at least one of the electronic devices and create a data set based on the received real-time information. The data set may comprise a parameter of the surrounding environment and/or an instruction set configured to operate the at least one electrical devices within the intermediate device system and/or a second intermediate device system within the network.

Abstract: Visibility of a license plate and color reproducibility of a vehicle body are improved in a monitoring camera. A vehicle body area detection unit detects a vehicle body area of a vehicle from an image signal. A license plate area detection unit detects a license plate area of the vehicle from the image signal. A vehicle body area image processing unit performs processing of the image signal corresponding to the detected vehicle body area. A license plate area image processing unit performs processing different from the processing of the image signal corresponding to the vehicle body area on the image signal corresponding to the detected license plate area. A synthesis unit synthesizes the processed image signal corresponding to the vehicle body area and the processed image signal corresponding to the license plate area.

Abstract: Method and apparatus are disclosed for control module activation to monitor vehicles in a key-off state. An example system includes a vehicle at a location in a key-off state that includes a sensor for collecting damage detection data, a camera module including a camera for collecting damage identification data, and a communication module. The example system also includes a remote processor to receive the damage detection data from the communication module and detect damage to the vehicle based upon the damage detection data. The remote processor also is to send, responsive to detecting the damage, an activation signal to activate the camera.

Abstract: An image processing method can suppress detection accuracy of a detection target object from being lowered even if the detection target object has a different surface condition because of the influence of various kinds of noise. The image processing method includes the following operations of generating a captured model edge image by executing edge extraction processing on a captured model image acquired by capturing a detection target object, executing pattern matching of the captured model edge image and a model edge image, calculating similarity at respective edge points in the model edge image in the pattern matching of the captured model edge image and the model edge image, selecting an edge point to be eliminated based on the similarity from among the respective edge points in the model edge image, and generating an edge image acquired by eliminating the selected edge point as a final model edge image.

Abstract: A self-learning cycle timer is disclosed. A wait time is measured between a first indication, associated with a stop, and a second indication, associated with movement following the stop, each indication received from a smart device. A geolocation is received from the smart device and a traffic signal identified at the geolocation. The traffic signal's area of influence is determined. The wait time is determined to have occurred inside the area of influence. An average cycle time and a reference time associated with the traffic signal are retrieved from a database. A cycle time associated with the traffic signal is calculated according to the wait time and the reference time. The average cycle time is updated according to the calculated cycle time.

Abstract: An approach is provided for filtering device location points in a sampled trajectory while maintaining path reconstructability. The approach involves determining a first location point in the sampled trajectory that is an unfiltered location point. The sampled trajectory includes device location points sampled by a device traversing a road network. The approach also involves determining a fastest alternative path from the first location point to a second location point. The approach further involves calculating a sampling time difference between a time at which the first location point was sampled and another time at which the second location point was sampled. The approach further involves designating the second location point as a next unfiltered location point when the sampling time difference is within a threshold value of a free-flow travel time calculated for the fastest alternative path. Otherwise, the second location point is designated as a filtered location point.

Abstract: A traffic routing display system provides a visual display of a speed or series of speeds suggested to the driver such that the driver may pass through multiple consecutive traffic signal devices without stopping at a red light. In one aspect, the display depicts the expected state of an upcoming traffic light. In another aspect, the display is an icon colored to correspond to the expected state. In another aspect, the time remaining before the state of a traffic light changes is displayed. The effect that an indicator has on driver behavior is used to determine the type of indicator to provide to the driver. Certain indicators may not be displayed by the system depending on the effect they have on the driver.

Abstract: A device can determine a set of average vehicle entry rates using traffic data associated with an intersection and can determine a set of average vehicle wait time values. The device can generate one or more data structures that include a set of state values that include the set of average vehicle entry rates and a set of transition values. The device can determine a set of customer satisfaction rating values. The device can generate a prediction data structure that associates the set of state values with a set of traffic light cycle time values and one or more customer satisfaction rating values. The device can determine a current state value. The device can identify a state value and a traffic light cycle time value that is associated with a highest customer satisfaction rating. The device can provide the traffic light cycle time value to a traffic controller.

Abstract: Disclosed are a method and system for distributed redundancy control on an intelligent traffic network, the method includes: sending, by each communication control node, messages for electing a primary device to the other communication control nodes, and electing a primary device from the plurality of communication control nodes according to preset priorities of the communication control nodes, and backing up data of the communication control node in the primary device; and sending state detection messages to the other communication control nodes, if a response message of the communication control node to the state detection message indicates that the communication control node cannot control any action of a device served by the communication control node, controlling action of the device served by the communication control node, and adjusting control intervals of time of signaling lamps at junctions corresponding to the communication control nodes in a redundant network according to traffic flows.

Abstract: A method and apparatus for traffic safety are provided using vehicle driving-related information obtained on the basis of a transmission/reception beam pair of a road side unit (RSU) and a vehicle on-board unit (OBU), thereby reducing a probability that vehicle collisions occur where visual fields may be obscured. The method includes setting a path from a current location of the electronic device to a destination, and transmitting a message indicating an emergency situation to other devices located on the path while moving to the destination. The method further includes determining a transmission/reception beam pair of the electronic device and a road apparatus, using a reference signal received from the road apparatus, transmitting a signal including information for the transmission/reception beam pair to the road apparatus, and receiving, from the road apparatus, a message warning that the electronic device and another neighboring electronic device are approaching each other.

Abstract: Computer-implemented predictions of upcoming traffic control signal states or state changes can be used to improve driver convenience, safety, and fuel economy. Such information can be used advantageously by a human operator, or by an autonomous or semi-autonomous vehicle control system. Predictions can be computed with suitable machines installed in a vehicle, in cooperation with a remote back-end server system. The prediction computations in the vehicle may be supported by data communicated to the vehicle computing machinery over various wireless communications, including telecom systems, DSRC, etc.

Abstract: A method, system, and computer readable program product are disclosed for traffic intersection distance signaling. In an embodiment, the method comprises determining a distance between a first vehicle and a traffic intersection, said first vehicle being on a first side of the intersection; using this determined distance to determine if a pre-defined distance is available between the first vehicle and the intersection; and when this pre-defined distance is available between the first vehicle and the intersection, signaling to a second vehicle, on a second side of the intersection, that space is available for the second vehicle on the first side of the intersection. In embodiments of the invention, the method further comprises measuring a specified length of the second vehicle, and the pre-defined distance is based on this measured specified length. In an embodiment, the predefined distance is equal to or greater than this measured specified length.

Abstract: The present invention provides a system that utilizes radio signals, cellular network and GPS technologies to provide a multi task system that deals with a variety of traffic related aspects such as intersection design systems, in-car traffic light systems, in-car traffic light system app for both drivers and pedestrians, roadside assistance and safety alert systems, high speed chase systems, roadway radar systems, law enforcement safety systems, emergency vehicles preemption systems, vehicle location logging systems, security and crime-fighting systems, missing person search systems and children in vehicles safety systems. The system consists of a number of electronic units, each one of these units perform a number of programmed functions. Examples of these units are: Police Vehicle Unit, Emergency Vehicle Unit, Vehicle Unit and Roadway Intersection Unit.

Abstract: The present disclosure is directed to an autonomous vehicle having a vehicle control system. The vehicle control system includes an image processing system. The image processing system receives an image that includes a plurality of image portions. The image processing system also calculates a score for each image portion. The score indicates a level of confidence that a given image portion represents an illuminated component of a traffic light. The image processing system further identifies one or more candidate portions from among the plurality of image portions. Additionally, the image processing system determines that a particular candidate portion represents an illuminated component of a traffic light using a classifier. Further, the image processing system provides instructions to control the autonomous vehicle based on the particular candidate portion representing an illuminated component of a traffic light.

Abstract: Systems and methods are described for searching media files using a set-top box (STB), a television receiver, digital video recorder (DVR), placeshifting device or other media device, or any type of network host that communicates with a media device of any sort. Search criteria is received from a user, and the search criteria is identified in listings of media programming available from one or more sources. In some implementations, a combined search result can be provided that identifies instances of the search criteria found in program guide listings, files stored on a digital video recorder (DVR), available on-demand content, or any other sources as desired. Some implementations may prioritize search results using information about files stored on a DVR, user preferences, or any other information as desired.

Abstract: Wireless communication systems and methods related to signaling line-of-sight (LOS) vehicle information for improving vehicle positioning accuracy are provided. A first vehicle receives, via a sensor, sensor data indicating a line-of-sight (LOS) vehicle. The first vehicle receives, via a wireless communication device, one or more ranging signals. The first vehicle determines that a first ranging signal of the one or more ranging signals is transmitted by the LOS vehicle. The first vehicle determines a position of the LOS vehicle based on at least the sensor data and the first ranging signal. Other aspects, embodiments, and features are also claimed and described.

Abstract: Some embodiments of the present disclosure disclose a vehicular lane line data processing method, apparatus, storage medium, and device. The method includes: acquiring at least two consecutive original images of a vehicular lane line and positioning data of the original images; calculating, using a deep neural network model, a pixel confidence; determining an outline of the vehicular lane line and using the outline of the vehicular lane line as a candidate vehicular lane line; calculating a vehicular lane line confidence; filtering the candidate vehicular lane line; recognizing attribute information of the vehicular lane line; and determining map data of the vehicular lane line. The vehicular lane line data can be efficiently and precisely determined, the labor costs in high-precision map production is greatly reduced, and the mass production of high-precision maps can be achieved.

Abstract: A driving assistance apparatus for a vehicle includes: a switch selecting a drive mode that specifies an output characteristic of a drive source relative to an accelerator operation amount; and a controller configured to calculate a target acceleration, based on the drive mode, for causing a host vehicle to follow a preceding vehicle such that a vehicle-to-vehicle distance between the host vehicle and the preceding vehicle is maintained at a distance within a predetermined range, and control a driving force of the drive source such that the host vehicle accelerates at the target acceleration.

Abstract: Disclosed herein is a method for collecting, by a vehicle information collection apparatus, vehicle accident information. The method includes receiving vehicle accident information including impact detection time information and location information from a plurality of vehicle communication terminals, determining whether a vehicle accident has occurred based on the received vehicle accident information, requesting a vehicle communication terminal which belongs to the plurality of vehicle communication terminals and which is related to the vehicle accident to send accident information based on a result of the determination, receiving encrypted image data related to the vehicle accident from the vehicle communication terminal related to the vehicle accident in response to the request, and decoding the received image data and storing the decoded image data along with the vehicle accident information.

Abstract: The present invention extends to methods, systems, and computer program products for detecting targets across beams at roadway intersections. Embodiments of the invention include tracking a target across a plurality of beams of a multiple beam radar system in a roadway intersection and updating track files for targets within a roadway intersection. Returns from a plurality of radar beams monitoring a roadway intersection are divided into range bins. Identified energy in the range bins is used to compute the position of targets within a roadway intersection. When the position of a target is computed, it is determined if the position is a new position for an existing target or if the position is the position of a new target.

Abstract: Provided is a vehicle outside notification device including a notification necessity determination unit configured to determine whether or not it is necessary to provide a traffic participant in a vicinity of a host vehicle with notification regarding an action schedule of the host vehicle, a preceding vehicle determination unit configured to determine whether or not a preceding vehicle is present in a case where it is determined that it is necessary to provide the notification, a notification output unit configured to output the notification, and a notification control unit configured to control the notification output unit. The notification control unit outputs the notification in a case where the preceding vehicle determination unit determines that the preceding vehicle is not present. The notification control unit restricts the output of the notification in a case where the preceding vehicle determination unit determines that the preceding vehicle is present.

Abstract: An autonomous vehicle includes a vehicle body, a drive mechanism configured to propel the vehicle body, a location module, a communication interface in communication with a traffic control system, and a processing unit in communication with the drive mechanism, the location module, and the communication interface. The processing unit is configured to receive, via the communication interface, a route of a prioritized vehicle and determine, in conjunction with the location module, whether a route of the autonomous vehicle intersects the route of the prioritized vehicle. The processing unit is configured to adjust, using the drive mechanism, one or more of a direction or a speed of the autonomous vehicle based on the determination.

Abstract: In the embodiments described herein, a RFID enabled license plate is constructed by using the license plate, or a retro-reflective layer formed thereon as part of the resonator configured to transmit signals generated by and RFID chip integrated with the license plate. Such an RFID enabled license plate can include a metal license plate with a slot formed in the metal license plate, and a RFID tag module positioned in the slot. The RFID tag module can include a chip and a loop, and the loop can be coupled with the metal license plate, e.g., via inductive or conductive coupling. In this manner, the metal license plate can be configured to act as a resonator providing increased performance.

Abstract: The present disclosure relates to a computer implemented method, a computer program product, and a computer system for verifying the road network of map. An embodiment of the present invention provides a method for verifying a road network of a map. The method comprises: determining, based on locations of a set of points in the map, a trajectory distance of a trajectory between a start point and an end point in the set of points on the map; determining a route distance between the start point and the end point in the road network of the map; and verifying the road network by comparing the trajectory distance and the route distance.

Abstract: Computer-implemented predictions of upcoming traffic control signal states or state changes can be used to improve driver convenience, safety, and fuel economy. Such information can be used advantageously by a human operator, or by an autonomous or semi-autonomous vehicle control system. Predictions can be computed with suitable machines installed in a vehicle, in cooperation with a remote back-end server system. The prediction computations in the vehicle may be supported by data communicated to the vehicle computing machinery over various wireless communications, including telecom systems, DSRC, etc.

Abstract: Technologies are described to provide control of traffic signals based at least in part on the presence of non-motorized users. In some examples, a system may include at least one sensor configured to autonomously acquire motorized user presence data at an intersection, and at least one sensor configured to autonomously acquire non-motorized user presence data at the intersection. The system may also include an agent configured to determine a motorized user queue length based on the motorized user presence data, determine a non-motorized user queue length based on the non-motorized user presence data, and control the traffic signals based at least in part on the non-motorized user queue length.

Abstract: A traffic control system and method in which a sensor and processor interact with at least one road module to illuminate and/or cause to flash in response to predetermined road surface and/or traffic conditions. The system and method can be configured to interact with vehicles, including autonomous vehicles, traveling on the road in which the road module(s) are embedded. The road surface and/or traffic conditions include an EMS vehicle located in proximity to a fire hydrant, a vehicle located in proximity to a bus stop, a vehicle located in proximity to an intersection with a bicycle and/or pedestrian path intersecting with said road in which said road modules are embedded.

Abstract: A system and method that enables pedestrians or individuals on smaller conveyances to communicate their location and direction of travel to signal light controllers at an intersection, enables traffic networks to receive this communication and output the detected data to the corresponding intersection traffic-signal controller to allow for individuals not in standard motor vehicles to be detected by traffic detection systems.

Abstract: An intersection communications system includes a vehicle intersection traffic movement indicator; a traffic movement surface indicator positioned behind an edge of the vehicle traffic intersection; a pedestrian lane surface indicator; one or more traffic direction surface indicators positioned within the vehicle traffic intersection; and a communications server configured to transmit a first signal to a first traffic movement surface indicator when a first monitored event occurs, transmit a second signal to a first right-turn traffic direction surface indicator directing the first vehicle to turn right from a first street to a second street when a second monitored event occurs, transmit a third signal to a second left-turn traffic direction surface indicator directing the first vehicle to turn left from the first street to the second street when a third monitored event occurs, and transmit a fourth signal to the pedestrian lane surface indicator when a fourth monitored event occurs.

Abstract: A traffic control system can includes a plurality of traffic lights. A monitoring system can include an inbound interface component, an analytics component, and an outbound status provisioning component. The inbound interface component can be configured to receive a stream of sensor data from visual sensor(s). Each visual sensor can be configured to capture light signals of traffic lights. Each traffic light can be sensed by the visual sensor(s). The received stream of sensor data can represent a current signal status of each traffic light. The analytics component can be configured to predict at least one future signal status for each of the traffic lights based on the use of a machine learning algorithm. The outbound status provisioning component can be configured to send a message(s) to a vehicle. The sent message can influence the operation of the vehicle.

Abstract: A vehicle control method using an advanced driver assistance system (ADAS) is provided. The method includes detecting whether a vehicle travels on a road having regulation information of a passing lane and determining whether a specific lane having driving restriction information is present while the vehicle travels on the road. Whether the vehicle travels in the passing lane is detecting and a warning is output to a driver based on a peripheral state of the vehicle when the vehicle travels in the passing lane.

Abstract: A roadside signal system and a roadside controller are provided relating to the control and operation of roadside signals and signs, such as those used by departments of transportation and municipalities. The roadside signal system and controller are configured to operate using National Transportation Communications for Intelligent Transportation Systems Protocol (“NTCIP”) compliant transmissions at both a local and remote level. The roadside controller by itself and as a part of the roadside signal system operates a local network to control multiple signs or signals from a single connection to a central network, thus saving physical space within the roadside cabinets used to store such controllers and virtual network space on the central network.

Abstract: 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.

Abstract: A light bulb assembly equipped for dedicated short range communication (DSRC). The light bulb assembly includes a light emitting element and a DSRC transceiver. The light bulb assembly is configured for receipt by a traffic light.

Abstract: Systems and methods for requesting modification of traffic flow control systems that combine satellite position navigation systems and dead reckoning technology with secure radio communications to accurately report a vehicle's real-time location and estimated arrival times at a series of signal lights within a traffic grid or at a distant signal light, while enabling signal controllers to accommodate priority requests from these vehicles, allowing for these vehicles to maintain a fixed schedule with minimal interruption to other grid traffic.

Abstract: The present disclosure relates to a computer implemented method, a computer program product, and a computer system for verifying the road network of map. An embodiment of the present invention provides a method for verifying a road network of a map. The method comprises: determining, based on locations of a set of points in the map, a trajectory distance of a trajectory between a start point and an end point in the set of points on the map; determining a route distance between the start point and the end point in the road network of the map; and verifying the road network by comparing the trajectory distance and the route distance.

Abstract: The present disclosure relates to a computer implemented method, a computer program product, and a computer system for verifying the road network of map. An embodiment of the present invention provides a method for verifying a road network of a map. The method comprises: determining, based on locations of a set of points in the map, a trajectory distance of a trajectory between a start point and an end point in the set of points on the map; determining a route distance between the start point and the end point in the road network of the map; and verifying the road network by comparing the trajectory distance and the route distance.

Abstract: A connected vehicle traffic safety system comprises a traffic signal controller and a roadside unit (RSU) located at a one-way traffic lane for avoiding crashes with vehicles of wrong-way drivers by issuing warnings for wrong-way violations. The traffic signal controller is configured to operate a traffic signal. The traffic signal is facing a wrong-way traffic and is set to dwell permanently in a RED signal phase. The one-way traffic lane is configured as a signalized intersection with a wrong-way approach that is programmed as a traffic signal phase dwelling in RED. The roadside unit (RSU) is configured to transmit a Signal Phase and Timing (SPaT) indication for the RED signal phase.

Abstract: The present disclosure relates to a computer implemented method, a computer program product, and a computer system for verifying the road network of map. An embodiment of the present invention provides a method for verifying a road network of a map. The method comprises: determining, based on locations of a set of points in the map, a trajectory distance of a trajectory between a start point and an end point in the set of points on the map; determining a route distance between the start point and the end point in the road network of the map; and verifying the road network by comparing the trajectory distance and the route distance.

Abstract: Devices, systems, and methods for accelerating a vehicle in the case of a line start at a traffic light system can include determining a likelihood of a predefined vehicle being able to pass through the traffic light system during a current or imminent green phase, accelerating the vehicle in accordance with a signal from an electronic towbar system if the likelihood is higher than a predefined threshold value, and accelerating the vehicle to a lesser extent if the likelihood is lower than the predefined threshold value.

Abstract: Emergency lighting devices and methods are disclosed. An emergency lighting device includes a first group of solid state emitters configured to emit light of a first color. The emergency lighting device also includes a second group connected in series to the first group and configured to emit a second color. The groups are configured to receive a normal operation current from an LED driver at the input end of the first group and output the normal operation current at the output end of the second group. In an emergency, the first group receives an emergency operation current from an emergency LED driver at an emergency input and outputs the emergency operation current at an emergency output located.

Abstract: A control method allows an own vehicle to proceed through a specific intersection into which vehicles are permitted to proceed in the order that the vehicles arrive. The method includes setting a determination region within a lane other than a lane in which the own vehicle travels; determining whether the own vehicle reaches a certain position at the near side of the specific intersection; allocating a priority state to the determination region when the own vehicle reaches the certain position and allocating a non-priority state to the determination region in which the vehicle does not exist when the own vehicle reaches the certain position; changing the priority state of the determination region to the non-priority state when the vehicle no longer exists in the determination region; and allowing the own vehicle to proceed into the specific intersection when the determination region of the priority state is not present.

Abstract: The present invention includes a security-monitoring platform (SMP) adapted to automatically synchronize with the monitored security systems and their respective electronic monitoring security devices. The SMP includes a synchronization module designed to communicate with the security systems using their respective application programming interfaces. The synchronization module retrieves the information for each electronic monitoring security device in each security system and determines whether the electronic monitoring security device information is known and up to date on the SMP. If an electronic monitoring security device has been added, removed, or modified, the synchronization module updates the SMP accordingly. The synchronization module automatically runs maintenance on the SMP to guarantee that the SMP can provide efficient and effective security measures.

Abstract: A pole luminaire mounts to a base and illuminates an area adjacent to the base. The luminaire includes a core structure having a plurality of side portions that extend vertically from the base, disposed about an elongate, open central shaft. One or more luminaire subassemblies couple with the core structure. Each luminaire subassembly includes a housing with a face panel that defines an aperture, a face plate coupled within the aperture, and a light engine having one or more light emitters. Light is directed through the aperture and the face plate into the area.

Abstract: A diagnosis system for an adaptive signal control system in a network, the diagnosis system including a traffic state identification device configured to estimate a traffic state describing a supply-demand mismatch by identifying a relationship between real time data feed from a sensor and a control strategy of said adaptive signal control system and a network transition model device configured to diagnose the supply-demand mismatch and an evolution of the supply-demand mismatch on a network level based on said relationship and infrastructure data of the network.

Abstract: 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.