A Model of Potential Capacity of Right Turn Movement at Sign资料.pdf

文档介绍：3rd Urban Street Symposium
June 24-27, 2007 Seattle, Washington

A MODEL OF POTENTIAL CAPACITY OF RIGHT TURN MOVEMENT AT
SIGNALIZED INTERSETIONS UNDER MIXED TRAFFIC CONDITIONS



By

Zhang Xue
Graduate Student, Transportation Research Center,
Beijing University of Technology, Beijing, China
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Guo Yan Ming
Graduate Student, Transportation Research Center,
Beijing University of Technology, Beijing, China
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Yang Xiao Kuan, .
(Corresponding Author)
Professor, Transportation Research Center,
Beijing University of Technology, Beijing, China
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This paper is submitted to 3rd Urban Street Symposium, Seattle, USA 2007
Zhang, Wang, Yang 1
ABSTRACT
China is a country where bicycles monly used in urban travel. There are no conflicts on
the link of the roadways between bicycle traffic and vehicular traffic because a side median is used to
separate these two flows. However, there are heavy conflicts between bicycle traffic and vehicular traffic
at intersections. Due to the layout of carriageway for vehicles and bicycles, the right turn vehicles will
conflict with through bicycles at intersections. The objective of this study is to explore the potential
capacity of right turn movement at signalized intersections under mixed traffic condition. New concepts
of bicycle group and grouping rate were introduced in this study. Relationships among bicycle volume,
number of bicycle group, and grouping rate were found. The critical gaps and follow-up times of right
turn movement traversing bicycle fleets were analyzed using Logit model. Thus, a bicycle-grouping
based model was developed to estimate the potential capacity of right turn movement unde