MONITORING SIGNALIZED TRAFFIC FLOW
First Claim
1. A method for monitoring signalized traffic flow, the method comprising:
- an act of receiving sensor data from a sensor that indicates the presence of one or more vehicles within a continuous range;
an act of determining an estimated time-of-arrival of the one or more vehicles to a point of interest while the one or more vehicles are within the continuous range;
an act of determining a level of efficiency and safety within the traffic flow based upon the estimated time-of-arrival; and
an act of reporting the level of efficiency and safety.
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Accused Products
Abstract
The present invention extends to methods, systems, and computer program products for monitoring signalized traffic flow. A processor in a sensor system or traffic controller interface estimates the time-of-arrival and other traffic flow estimates of one or more vehicles to an intersection stop bar, while the vehicles are within a continuous range of one or more transducers view of the sensor system. A level of efficiency and safety within the signalized traffic flow is estimated by the sensor system based upon one or more of the estimated time-of-arrival and other flow variables estimates and then communicated to the control unit of the traffic signal system. Other flow estimates for each vehicle include but are not limited to: position relative to the stop bar, lane position, velocity, acceleration, time headway and classification.
91 Citations
53 Claims
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1. A method for monitoring signalized traffic flow, the method comprising:
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an act of receiving sensor data from a sensor that indicates the presence of one or more vehicles within a continuous range; an act of determining an estimated time-of-arrival of the one or more vehicles to a point of interest while the one or more vehicles are within the continuous range; an act of determining a level of efficiency and safety within the traffic flow based upon the estimated time-of-arrival; and an act of reporting the level of efficiency and safety. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method of monitoring traffic with a sensor, comprising:
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an act of receiving sensor data from a sensor that indicates a presence of one or more vehicles within a continuous range; an act of determining an estimated time-of-arrival of the vehicles to a point of interest in traffic flow while within the continuous range; and an act of reporting the estimated time-of-arrival. - View Dependent Claims (41, 42, 43, 44, 45)
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46. A method of monitoring traffic with a sensor, comprising:
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an act of receiving sensor data from a sensor that indicates a presence of one or more vehicles within a continuous range; an act of dynamically adapting a location of detection within a continuous range based upon a traffic characteristic; and an act of reporting detections at the location of detection. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53)
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Specification