关键词: 交通运输安全工程, 信号交叉口, 相位差, 最小延误, 交通流, 仿真

Abstract: The domestic urban traffic flow characteristics are different from abroad, so applying the imported coordinated traffic signal control system on the domestic urban arterial road can not obtain satisfactory effect. Taking the coordinated control system on the urban arterial road between two adjacent signaled intersections in Beijing as an example, considering the traffic flow dispersion and the delay on China road traffic, setting the minimal delay at the intersections as the optimization objective, an optimization model on the coordinated control on the phaseoffset between the adjacent intersections was built. The genetic algorithm was used to solve the problem to avoid the weakness of the traditional graphical or numerical method. The simulation results show that the new method is better than the traditional ones. The model is able to describe accurately the actual traffic flow and the control effect, to decrease the delay at the adjacent intersections.

Key words: engineering of communication and transportation safety, signalized intersection, phaseoffset, minimal delay, traffic flow, simulation