Abstract: Based on the bus signal priority strategy, the MULTIBAND model was improved, the weight coefficient, the lane clearance time and the minimum green-wave bandwidth were redefined. The control strategy of red light early cut-off or green light extension was implemented according to different phase release methods. On this basis, the speed and stop time of bus vehicles were considered, the constraints on bus vehicles were established and an improved model of arterial coordination signal control based on bus priority was proposed. Through VISSIM simulation, the proposed model was compared with the traditional arterial coordination signal control models. The results show that compared with the traditional coordination control models, the proposed model reduces the average delay of social vehicles by 4.77%, the number of stops by 3.77%, the average delay of public transportation vehicles by 11.35%, the number of stops by 2.06%, and the per capita delay by 7.22%. The proposed model also shows good results under different bus flow rates.

Key words: traffic and transportation engineering; bus priority; arterial coordination signal control; MULTIBAND; green-wave control

摘要： 基于公交信号优先策略，对MULTIBAND模型进行改进，重新定义了权重系数、车道清空时间和最小绿波带宽，结合不同相位放行方式实施红灯早断或绿灯延长控制策略，并在此基础上考虑公交车辆的车速与停靠时间，建立对公交车辆的约束，提出基于公交优先的干线协调信号控制改进模型。通过VISSIM仿真，将该模型与传统干线协调信号控制模型对比分析，结果表明：与传统协调控制模型相比，模型使社会车辆平均延误降低了4.77%，停车次数降低了3.77%，公交车辆平均延误降低了11.35%，停车次数降低了2.06%，人均延误降低了7.22%，且在不同的公交流量下均有较好的效果。

关键词: 交通运输工程；公交优先；干线协调信号控制；MULTIBAND；绿波控制