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.

Abstract: A pedestrian crosswalk switch (140) for registering force applied to a crosswalk button (172) is provided. The pedestrian crosswalk switch (140) includes a button housing (142), a crosswalk button assembly (143) including a compression spring (174), a button coupling assembly (176), and a microswitch assembly (178). The crosswalk button assembly (143) has a button shank (184) that protrudes through the compression spring (174) and into a button aperture (162) of the button housing (142). The button coupling assembly movably couples the crosswalk button (172) via the button shank (184). The microswitch assembly (178) has a movable trigger (196) and a compression spring (198) pivotally mounted to a microswitch (194) by a pivot pin (202). The microswitch assembly (178) is mounted to a flange (168) protruding from the button housing (142) such that the trigger (196) is in engaging alignment with the button coupling assembly (176).