METHOD AND APPARATUS FOR CONTROLLING TRAFFIC FLOW IN ACCORDANCE WITH TRAFFIC PRESENCE

摘要

The presence of traffic in at least one of the intersecting passageways is monitored by developing a presence signal so long as a vehicle is present in a predetermined area and the presence signal is utilized to control the energization of a traffic signal light so as to initiate termination of a go signal display for traffic in the passageway which previously had right-of-way. Traffic presence detectors are provided also within the intersection itself to prevent yielding right-of-way to traffic in an intersecting passageway until the vehicle has left the intersection.