Abstract:
A system determines traffic information. The system contains a terminal having a position determination device for determining a position of the vehicle, a storage device for storing reference positions defined by location coordinates, and a processor which works together with the position determining device and the storage device. The processor compares a specific position of the vehicle with stored reference positions to determine whether the vehicle has passed a reference position. A reference position is defined by a safety line extending through the location coordinates thereof. The processor also determines whether the vehicle has traversed a safety line and evaluates the traversing of a determined safety line as the vehicle passes the reference position defined by the safety line. Therefore, the system can determine a position in a simple and reliable manner, including in an inner-city road network.
Abstract:
Locations for traffic sensors can be determined by a computer system that identifies a particular segment of a travel path. Traffic flow data from other segments of travel path are accessed based on traffic flow characteristics of the particular path. Using the traffic flow data, parameters for a traffic incident symptom propagation model are generated, and a location of a traffic incident along the segment of the path is determined. Using time-to-detection limits and the incident model, upstream and downstream distances are determined, and the locations of two sensors are identified based on the distances.
Abstract:
Methods, systems, and computer program products for determining transit routes through crowd-sourcing, for determining an estimated time of arrival (ETA) of a vehicle of the transit route at a given location, and for providing predictive reminders to a user for catching a vehicle of the transit route. A server receives signal source information about wireless signal sources detected by user devices, including information about a first wireless signal source detected by some devices. The server determines that the first wireless signal source is moving. The server determines that the first wireless signal source is associated with a public transit route upon determining that the signal source information satisfies one or more selection criteria. The server stores information associating the first wireless signal source with the public transit route as transit movement data corresponding to the public transit route.
Abstract:
A first mobile monitoring system includes one or more mobile monitoring devices, a network, a server and a storage memory. The server is implemented to analyze the collected signals and the traffic information to identify at least one traffic flow according to travel routes of the one or more wireless devices; determine whether the identified at least one traffic flow exceeds an updating threshold based on the collected signals; derive at the server when the traffic flow exceeds the updating threshold, an updating priority indicating an order in which the traffic flows are processed based on the collected signals; and update a dynamic traffic transportation plan map based on the at least one traffic flow, the updating threshold and the updating priority.
Abstract:
A communication system for vehicles includes a plurality of communication devices integrated into a road. The communication devices are operable to wirelessly communicate with communication systems of vehicles traveling on the road. The communication devices may be electrically powered by solar power. The communication devices wirelessly communicate with a remote server of the communication system. The remote server receives information via the communication devices pertaining to the vehicles traveling on the road and, responsive at least in part to the received information, the remote server communicates information to the vehicles traveling on the road via the communication devices.
Abstract:
Apparatuses and methods are provided for determining real time traffic conditions. A candidate road is divided into road segments by perpendicular bisectors. A spatial sliding window is positioned over at least a portion of a road segment, wherein the spatial sliding window corresponds to a front end of the road segment in a direction of travel of the road segment. Real time probe data is received from mobile devices in probe vehicles or on travelers of the at least portion of the road segment within the spatial sliding window. The real time probe data is analyzed, and a computer program assists in determining the real time traffic conditions of the at least portion of the road segment within the spatial sliding window. Based on the analysis, the real time traffic conditions are reported.
Abstract:
A method for tracking and characterizing a plurality of vehicles simultaneously in a traffic control environment, comprising: providing a 3D optical emitter; providing a 3D optical receiver with a wide and deep field of view; driving the 3D optical emitter into emitting short light pulses; receiving a reflection/backscatter of the emitted light, thereby acquiring an individual digital full-waveform LIDAR trace for each detection channel of the 3D optical receiver; using the individual digital full-waveform LIDAR trace and the emitted light waveform, detecting a presence of a plurality of vehicles, a position of at least part of each vehicle and a time at which the position is detected; assigning a unique identifier to each vehicle; repeating the steps of driving, receiving, acquiring and detecting, at a predetermined frequency; tracking and recording an updated position of each vehicle and an updated time at which the updated position is detected.
Abstract:
A system for identifying a fastest possible travel route is disclosed. A traveler data processor collects traffic speed data and associates the traffic speed data with road segments. The road segments collectively represent one or more possible travel routes from a start point to an end point. A forecast engine determines a predicted travel time for each of the road segments based on, for example, the traffic speed data for each of the road segments. A routing engine determines the fastest possible travel route from the start point to the end point. The fastest possible travel route is the possible travel route from the one or more possible travel routes with the shortest predicted travel time.
Abstract:
A traffic monitoring system includes a plurality of road monitoring devices and a traffic control center electronically coupled to the road monitoring devices. Each road monitoring device has specific transmittable position information stored therein. The traffic control center has stored transmittable images of a plurality of vehicle types and stored transmittable images of the plurality of roads to be monitored. When one or more vehicles passes one of the road monitoring devices, the road monitoring device receives a vehicle identification code from each vehicle, calculates position information of each vehicle and transmits the road monitoring device position information, each vehicle identification code and the vehicle position information for each vehicle to the traffic control center. The traffic control center configures a three dimensional traffic image from all of the vehicle images of the one or more vehicles passing the one of the road monitoring devices.
Abstract:
Traffic at an intersection, or other portion of a road, is detected, and the stop/go traffic signal apparatus at the intersection, or other portion is controlled based on vehicle types in the detected traffic. A vehicle type may be determined based on information collected by that vehicle's onboard telematics unit, or with a user's device in communication therewith. An input may be received from a user device, onboard the vehicle, to request changing the current stop/go configuration of the traffic signal. The request may be processed based on the determined vehicle type to determine whether or not to change the traffic signal in response to the request. The request may be accompanied by an offer of money, and if the request is not granted, the user device may forward another request associated with a different offer.