交通运输系统工程与信息 ›› 2008, Vol. 8 ›› Issue (4): 77-82 .

• 系统工程理论与方法 • 上一篇    下一篇

城市交通中两种出行方式比例分配问题研究

孙会君* ; 四兵锋 ; 吴建军   

  1. 北京交通大学 交通运输学院,北京 100044
  • 收稿日期:2008-02-20 修回日期:2008-04-20 出版日期:2008-08-25 发布日期:2008-08-25
  • 通讯作者: 孙会君
  • 作者简介:孙会君(1974-),女,河北衡水人,副教授。
  • 基金资助:

    国家973计划课题(2006CB705500),国家自然科学基金重点项目(70631001)以及高等学校全国优秀博士学位论文作者专项基金(200763)。

Combined Model for Flow Assignment and Mode Split in Two-modes Traffic Network

SUN Huijun; SI Bingfeng ;WU Jianjun   

  1. School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044,China
  • Received:2008-02-20 Revised:2008-04-20 Online:2008-08-25 Published:2008-08-25
  • Contact: SUN Huijun

摘要: 大力发展城市公共交通、实行公交优先成为日前缓解道路交通紧张状况的必然选择,而采用有效的管理政策保证公交优先的前提条件是搞清楚公共交通应承担的客流量。本文通过分析公交车与私家车的相互影响,建立了交通方式分担与流量分配模型,并设计了启发式求解算法,以得到OD对之间及路段上公交车与私家车流量与分担比例。最后通过一简单的算例分析了此方法的可行性。研究结果显示在公交车的服务水平没有提高的前提下,需求量增大时会造成私家车分担的交通流量增加很快。因此在制定公交优先政策时应综合规划公交车的服务水平,以确保人们的交通出行方式结构合理。

关键词: 城市交通, 公交, 出行方式, 流量分配

Abstract: In order to alleviate urban traffic problems such as congestion, air pollution, and shortage of fuel, it is necessary to develop public traffic system with priority. A fundamental requirement for bus priority policy is to develop transit flow assignment models in the multimode network. Travelers’ choice behaviors, e.g., mode and route choice, are important in modeling transit network flows. This paper develops a combined model for modal split and flow assignment in two modes network to obtain the proportion of traffic demand shared by bus and private car while considering the interactions between these two modes. And then a heuristic algorithm is designed to solve the proposed model. At last, a numerical example is used to illustrate the application of the model and algorithm. The results show that the traffic demand of private cars will increase quickly in the congested network for the lower service level of buses.

Key words: urban traffic, public transit, travel mode, flow assignment

中图分类号: