Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (7): 10-14.

• Traffic & Transportation Engineering • Previous Articles     Next Articles

Investigation into Minimum Distance Between Intersection and Passageway of Underground Roads

Situ Bing-qiang  Jin Wen-zhou  Hu Yu-cong  Wang Xuan   

  1. School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2008-05-12 Revised:2008-11-19 Online:2009-07-25 Published:2009-07-25
  • Contact: 司徒炳强（1983-），男，博士生，主要从事交通运输系统优化与设计研究． E-mail:benst2002@126．com
  • About author:司徒炳强（1983-），男，博士生，主要从事交通运输系统优化与设计研究．
  • Supported by:

    国家“863”高技术计划项目（2007AA11Z201）;国家自然科学基金资助项目（50878089）

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Abstract:

The location of passageway of underground roads relates to the linkage between the traffic flows underground and aground. In this paper, first, the combination mode of entrance and exit locations is analyzed, and a minimum-distance model of weaving sections is established, with the lane-changing times as the main judgement criterion. Then, the way to find the maximum key times and the key flow for continuous lane change is illustrated. Finally, according to the characteristics of mixed traffic flow, the discrete threshold value of the minimum distance of weaving sections is obtained via the programming calculation with Matlab. The proposed method supplies refe- rences to the determination of minimum distance between the intersection and the passageway of underground roads.

Key words: underground road, minimum distance, lane-changing times, combination mode