城市公共交通枢纽换乘组织仿真研究

Simulations and Analysis on Transfer Organizations in Urban Public Transportation Hubs

城市公共交通枢纽的换乘组织在城市交通规划和管理中的地位日益突出.本文结合VISSIM微观交通仿真软件的功能,建立了以西直门公共交通枢纽为研究背景的换乘组织仿真模型.通过现状仿真分析,发现该枢纽存在行人与车流交叉严重、换乘距离长、公交车候车时间长、客流密度大等问题.本文针对发现的问题,提出增大公交车发车频率、增加行人过街设施与缩短换乘距离和时间等改善措施,并通过建立的仿真模型对采用改善措施后的枢纽换乘组织进行了模拟.仿真结果表明,本文提出的改善措施有效地提高了西直门公共交通枢纽的换乘组织效率.

Transfer organizations of public transportation hubs have played a more important role in urban transportation managements and plannings. VISSIM as a micro-simulation software is constructed to model the transfer processes of pedestrians in the Xizhimen public transportation hub in this paper. Four problems are found in the case study as following： serious disturbance between pedestrians and traffic flow, long transfer distance, bus waiting time and large traffic flow density. Some improved methods, such as increasing the departing frequency of buses, constructing the passing-street establishments for pedestrians, decreasing transfer distances, are proposed to solve the existing problems in this paper. Simulation results denote that the proposed methods in this paper are valuable in improving the efficiency of transfer organizations of the Xizhimen public transportation hub.