Patent ID: 7733242
Filing Date: 2010-06-08
Classification: G08G

Abstract:
1. A traffic control system comprising: an enclosure for containing the traffic control system; an access door on the enclosure; a lock controlling access to the enclosure through the access door; an automatic mode of operation and a manual mode of operation, whereas the traffic control system automatically transitions a state of a plurality of traffic lights when in the automatic mode of operation and cycles the state of the plurality of traffic lights in response to a change signal when in the manual mode of operation; an automatic mode activation switch within the enclosure, activation of the automatic mode activation switch changing the state of the traffic control system from the automatic mode of operation into the manual mode of operation; and a watchdog timer operatively coupled to the traffic control system, the watchdog timer is reset when the automatic mode activation switch is operated; the watchdog timer is also reset in response to the change signal; whereas upon expiration of the watchdog timer, the traffic control system switches to the automatic mode of operation.