Traffic Routing Using Intelligent Traffic Signals, GPS and Mobile Data Devices
First Claim
Patent Images
1. A traffic communication system, comprising:
- a traffic signal having a plurality of states;
a traffic signal subsystem operatively connected to the traffic signal and configured to receive from the traffic signal a notification of when the traffic signal is in each of the plurality of states and to produce therefrom a prediction; and
a routing subsystem configured to receive from the traffic signal subsystem the prediction and, responsive thereto, determine a proposed route and transmit the proposed route to a first user device.
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Abstract
A traffic routing system reduces emissions from commuter and other traffic, eases congestion on roadways, and decreases transit time by use of communications among vehicles and traffic controls, such as traffic lights. In one aspect, a traffic light receives a signal that a vehicle is approaching and in response turns green to allow the vehicle to pass without impairment. In another aspect, a vehicle receives a signal to adjust a current rate of speed to arrive when a traffic signal allows vehicles to pass. In still another aspect, a combination of congestion, emergency traffic, roadwork and similar factors influence proposed routes sent to vehicles.
242 Citations
47 Claims
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1. A traffic communication system, comprising:
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a traffic signal having a plurality of states; a traffic signal subsystem operatively connected to the traffic signal and configured to receive from the traffic signal a notification of when the traffic signal is in each of the plurality of states and to produce therefrom a prediction; and a routing subsystem configured to receive from the traffic signal subsystem the prediction and, responsive thereto, determine a proposed route and transmit the proposed route to a first user device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A user routing device, comprising:
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a computer readable medium storing a program, the program including instructions to; transmit to a traffic system a route request; receive from the traffic system a proposed route, the proposed route being responsive to operational states of a traffic signal; indicate to the user a predicted one of the operational states based on estimated time of arrival at the traffic signal; and a processor configured to communicate with the computer readable medium and to execute the program. - View Dependent Claims (18, 19, 20, 21)
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22. A traffic information collection system, comprising:
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a routing subsystem responsive to traffic data, the traffic data including traffic light state data; a plurality of user routing devices, communicatively coupled with the routing subsystem and configured to receive recommended route information from the routing subsystem responsive to the traffic data; and a traffic database subsystem, communicatively coupled with the plurality of user routing devices and configured to receive the traffic information from the plurality of user routing devices.
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23. A computer-implemented method of communicating traffic information to a vehicle, comprising:
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receiving, by a traffic signal subsystem operatively connected to a traffic signal, a notification of when the traffic signal is in each of a plurality of states and producing therefrom a prediction; receiving, by a routing subsystem, the prediction; and responsive to the prediction, determining a proposed route and transmitting the proposed route to the vehicle. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A traffic control method, comprising:
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transmitting a route request from a user to a traffic system; receiving a proposed route from the traffic system, the proposed route being responsive to operational states of a traffic signal; and indicating to the user a predicted operational state based on estimated time of arrival at the traffic signal. - View Dependent Claims (38, 39, 40, 41, 42, 43)
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44. A computer-implemented method of obtaining traffic information, comprising:
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providing mobile users, via software applications executing on mobile user devices, routing and traffic data relating to traffic signal status and other current parameters relating to traffic; and obtaining the traffic information from the mobile user devices, via the software applications.
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45. A computer-implemented method of determining traffic-related information, comprising:
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collecting, over a period of time, speed and position information from mobile user devices, via software applications; and correlating the speed and position information to infer therefrom the traffic-related information. - View Dependent Claims (46, 47)
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Specification