文章基本信息

标题：Measuring Marginal Congestion Costs of Urban Transportation: Do Networks Matter?
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作者：Safirova, Elena ; Gillingham, Kenneth
期刊名称：Journal of Agribusiness
印刷版ISSN：0738-8950
出版年度：2003
期号：suppl
出版社：Journal of Agribusiness
摘要：In determining the marginal cost of congestion, economists have traditionally relied upon directly measuring traffic congestion on network links, disregarding any "network effects," since the latter are difficult to estimate. While for simple networks the comparison can be done within a theoretical framework, it is important to know whether such network effects in real large-scale networks are quantitatively significant. In this paper we use a strategic transportation planning model (START) to compare marginal congestion costs computed link-by-link with measures taking into account network effects. We find that while in aggregate network effects are not significant, congestion measured on a single link is a poor predictor of total congestion costs imposed by travel on that link. Also, we analyze the congestion proliferation effect on the network to see how congestion is distributed within an urban area.
关键词：marginal congestion costs;congestion pricing;urban networks