Bus Signal Priority Based on GPS and Wireless Communications Phase I - Simulation Study
Chen-Fu Liao, Gary Davis
Report no. CTS 06-07
Transit Signal Priority (TSP) for transit has been proposed as an efficient way to improve transit travel & operation. Bus signal priority has been implemented in several US cities to provide more reliable travel and improve customer ride quality. Current signal priority strategies implemented in various US cities mostly utilized sensors to detect buses at a fixed or at a preset distance away from the intersection. Signal priority is usually granted after a preprogrammed time offset after detection. The proposed study would take advantage of the GPS system on the buses in Minneapolis and develop a signal priority strategy which could consider the bus' timeliness with respect to its schedule, its number of passengers, location and speed.