关键词: 交通工程, 绿色驾驶, 可变速度限制, 信号交叉口, 交通仿真

Abstract:

Signal intersection is the traffic distribution interchange in the whole urban traffic road network. Vehicles often stop at an intersection that results in idle driving, severely reduces the intersection traffic efficiency, and causes serious vehicle exhaust pollution. In order to reduce the blocking of traffic flow of intersection, and reduce the delay, fuel consumption and emission of vehicle at signal intersection, this paper proposes a green- driving control method for signal intersection based on multi- level variable speed limit. This method uses the value of variable speed limits as control variable, and utilizes the information of traffic condition near the intersections obtained by fixed detectors to optimize and release the value of variable speed limits in real-time, to smooth the spatio-temporal trajectories without extra travel time in the process of driving to the intersection. Then we made a simulation and verification of this method by combining Newell's following model and VT- micro vehicle fuel consumption and emissions model. The result shows that it can reduce vehicle delay, fuel consumption and pollution emissions effectively.

Key words: traffic engineering, green driving, variable speed limit, signal intersection, traffic simulation