Advanced accessible pedestrian system for signalized traffic intersections
First Claim
Patent Images
1. A pedestrian call station, comprising:
- a pedestrian call switch operable by a pedestrian; and
a pedestrian station processor coupled to the pedestrian call switch and configured to communicate a traffic control request to a pedestrian management unit in response to activation of the pedestrian call switch by the pedestrian and to receive an acknowledgment of the traffic control request from the pedestrian management unit, wherein the traffic control request is associated with controlling at least one traffic signal so as to allow or deny movement of vehicular traffic.
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Abstract
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.
34 Citations
15 Claims
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1. A pedestrian call station, comprising:
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a pedestrian call switch operable by a pedestrian; and a pedestrian station processor coupled to the pedestrian call switch and configured to communicate a traffic control request to a pedestrian management unit in response to activation of the pedestrian call switch by the pedestrian and to receive an acknowledgment of the traffic control request from the pedestrian management unit, wherein the traffic control request is associated with controlling at least one traffic signal so as to allow or deny movement of vehicular traffic. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A pedestrian service request system, comprising:
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a pedestrian management processor; and a network interface coupled to the pedestrian management processor, wherein the network interface is operable to receive a request for a traffic control service from at least one pedestrian call station of a plurality of pedestrian call stations and to transmit a traffic control request acknowledgment to the at least one pedestrian call station of the plurality of pedestrian call stations, wherein the at least one pedestrian call station of the plurality of pedestrian call stations includes a network interface operable to transmit a signal identifier to the pedestrian management processor. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification