文章基本信息

标题：Influence Factor Analysis of Stochastic Capacity of Shanghai Expressway Segment
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作者：Yang Chao ; Yang Chao ; Chen Zhengzheng 等
期刊名称：Procedia - Social and Behavioral Sciences
印刷版ISSN：1877-0428
出版年度：2013
卷号：96
页码：2497-2505
DOI：10.1016/j.sbspro.2013.08.279
语种：English
出版社：Elsevier
摘要：AbstractRecent studies have introduced a new approach of estimating expressway capacity. The capacity of expressway segments is treated as a random variable instead of the traditional approach of a constant value. Different distribution functions are compared and the Weibull-distribution is used as the distribution function of stochastic capacity. The parameters of the Weibull-distribution function may be influenced by many factors. The influence factors (external conditions like dry or wet road surface, daylight or darkness) are analyzed using the Shanghai expressway data. The relationship between the parameters of the distribution function and the influence factors is studied, and the expressions are derived using the Shanghai expressway data. Once the expressions are derived, the distribution function of expressway capacity under different conditions can be easily obtained.
关键词：expressway;stochastic capacity;Weibull distribution;weather