BRT信号优先的元胞自动机仿真研究  

Study on the Signal Priority of BRT by the Simulations Based on the Cellular Automata Model

作　　者：张建鹏[1] 廖唱[2] 杨远舟 贾斌[3] 

机构地区：[1]中铁第一勘察设计院集团有限公司,西安710043 [2]北京交通大学城市交通复杂系统理论与技术教育部重点实验室,北京100044 [3]北京交通大学交通运输学院,北京100044

出　　处：《交通运输系统工程与信息》2011年第A01期61-67,共7页Journal of Transportation Systems Engineering and Information Technology

基　　金：国家重点基础研究发展计划(2006CB705500);北京交通大学优秀博士生科技创新基金(141080522)

摘　　要：构建了BRT信号优先的元胞自动机仿真模型,并进一步研究了不同信号优先控制策略下BRT对交叉口车流的影响.首先,结合北京市快速公交1号线和义农场站交叉口现状信号,标定了模型的参数并验证仿真结果的有效性;然后,在此基础上,对单独采取绿灯延长信号控制、单独采取红灯早断信号控制和同时采用两种信号控制三种BRT信号优先策略进行了仿真;最后,基于仿真结果,对交叉口交通流特性和运行特性进行了分析.This study has developed the cellular automata simulation model to analyze the effect of the signal priority on the BRT and,in a further,its influence on the vehicle flows at road intersections.According to the signals at the intersection of the Heyinongchang Stop on the Line No.1 of the BRT in Beijing,the newly developed model has been estimated and the simulation results are evaluated.Three strategies about signal priority are simulated,i.e.early green signal strategy,extended green signal strategy and the combination of the former two strategies.Finally,according to the simulation results,the attributes of the traffic flows at intersections and the operational characteristics of the BRT are analyzed.

关 键 词：城市交通 快速公交 信号优先 交通流 元胞自动机 

分 类 号：U491.17[交通运输工程—交通运输规划与管理]