An Adaptive Traffic Light Control Application in WAVE/DSRC

摘要

Currently, most traffic lights at street intersections operate according to a fixed setting. However in reality, vehicle flow rates of the two directions are not always equivalent. As a result, the traffic light at the vertical roadway may turn red when no car is driving on the horizontal roadway, or remain in red when all cars on the horizontal roadway have passed the intersection. In this paper, we develop an intelligent traffic light control application to relieve these situations. Besides, at cooperative vehicular safety environment of WAVE/DSRC, each vehicle installs an OBU that periodically broadcasts its current moving status. In addition, our proposed adaptive traffic light control application will collect and analyze the information broadcasted by all OBUs. Hence, the traffic lights are able to dynamic operate according the current vehicle flow rates of two directions and further reduce the street intersection waiting time and increase the traffic throughput at the street intersection.