基于交通波理论的直线式公交停靠站交通影响范围研究  

Research on Traffic Impact Range of Linear Bus Stop Based on Traffic Wave Theory

作　　者：丁柏群[1] 金英群 

机构地区：[1]东北林业大学交通学院,哈尔滨150040

出　　处：《森林工程》2015年第3期136-140,共5页Forest Engineering

基　　金：哈尔滨市发展和改革委员会科学技术研究项目(哈尔滨城市公交管理评价系统研究)

摘　　要：直线式停靠站是城市公交中途站的常见形式,公交车的进出站过程将对附近交通运行状态产生较大影响,往往形成路网的局部瓶颈。针对直线式停靠站,分析公交车减速进站、停车服务、加速出站3个阶段的交通特性,对比上、下游稳定行驶段的不同影响,应用交通波等理论构建交通影响范围的时空模型。研究结果表明,在通常交通密度下,公交车停靠过程的交通影响具有后效性,不因起动出站而结束;交通影响范围随站点上游交通流密度增大而增大,随下游交通流密度增大而减少。A linear bus stop is a common form of urban public halfway station. The behavior of bus arrival and departure at one stop will have great influence on traffic running state nearby, which tends to cause bottlenecks of road network. For linear bus stops, this paper analyzes the behavioral characteristics of states of bus arrival, parking and departure bus stops. The different impacts of up- stream and downstream segments of bus stable running are compared. Furthermore, the spatiotemporal models of traffic impact range based on traffic wave theory are established. The results show that under normal traffic density, the traffic impact of bus arrival and departure has aftereffect, which will not end with the process of departure. Traffic impact range has a positive correlation with up- stream traffic density and negative correlation with the downstream traffic density.

关 键 词：公交停靠站 交通影响 交通波 可穿越间隙 

分 类 号：S713[农业科学—林学] U491[交通运输工程—交通运输规划与管理]