地下道路地面出入口与交叉口最小间距的研究

华南理工大学学报（自然科学版） ›› 2009, Vol. 37 ›› Issue (7): 10-14.

地下道路地面出入口与交叉口最小间距的研究

司徒炳强靳文舟胡郁葱王璇

华南理工大学土木与交通学院, 广东广州 510640

收稿日期:2008-05-12 修回日期:2008-11-19 出版日期:2009-07-25 发布日期:2009-07-25
通信作者: 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
作者简介: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．
基金资助:
国家“863”高技术计划项目（2007AA11Z201）;国家自然科学基金资助项目（50878089）

Investigation into Minimum Distance Between Intersection and Passageway of Underground Roads

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

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）

摘要/Abstract

摘要： 地下道路在地面的出入口位置影响着地下和地面车流的衔接．文中分析了出入口间相对位置的组合模式，以交织段换道次数为主要判断依据，建立交织段最小长度模型，通过算例，给出寻找连续换道最大关键次数和关键车流的方法，针对交通流的混合特性，运用Matlab编程给出交织段最小长度的离散阈值，为地下道路地面出入口与交叉口最小间距的确定提供依据。

关键词: 地下道路, 最小间距, 换道次数, 组合模式

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

司徒炳强靳文舟胡郁葱王璇. 地下道路地面出入口与交叉口最小间距的研究[J]. 华南理工大学学报（自然科学版）, 2009, 37(7): 10-14.

Situ Bing-qiang Jin Wen-zhou Hu Yu-cong Wang Xuan. Investigation into Minimum Distance Between Intersection and Passageway of Underground Roads[J]. Journal of South China University of Technology (Natural Science Edition), 2009, 37(7): 10-14.