Development of Planning-Stage Models for Analyzing Continuous Flow Intersections
Development of Planning-Stage Models for Analyzing Continuous Flow Intersections
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DOI：
10.1061/(asce)te.1943-5436.0000596
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发表时间：
2013-11
期刊：
影响因子：
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通讯作者：
X. Yang;G. Chang;Saed Rahwanji;Yang Lu
中科院分区：
文献类型：
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作者：
X. Yang;G. Chang;Saed Rahwanji;Yang Lu
尽管越来越多地使用连续流交叉口（CFI），以应对拥挤的通过和左转交通流造成的拥堵，一个可靠的和方便的工具，交通社区，以确定潜在的不足之处的CFI的设计还没有。这是由于CFI的独特几何特征，它包括一个主要交叉口和多个交叉口。现有的分析模型主要针对传统交叉口开发，无法完全捕捉具有五个密集交叉口的CFI的交通延误和排队之间的相互依存关系。为了满足这种需求，本研究提出了一个全面的分析，为整个CFI延迟，确定潜在的队列溢出的位置，并制定了一套规划阶段模型的CFI设计几何形状。为了便于这些模型的应用，本文还包括一个案例研究的CFI在MD 4和MD 235的交叉口建设的马里兰州公路管理局。
Despite the increasing use of continuous-flow intersections (CFIs) to contend with the congestion caused by heavy through and left-turn traffic flows, a reliable and convenient tool for the traffic community to identify potential deficiencies of a CFI’s design is not yet available. This is due to the unique geometric feature of CFI, which comprises one primary intersection and several crossover intersections. The interdependent relationship between traffic delays and queues at a CFI with five closely spaced intersections cannot be fully captured with the existing analysis models, which were developed primarily for conventional intersections. In response to such a need, this study presents a comprehensive analysis for the overall CFI delay, identifies the potential queue spillback locations, and develops a set of planning-stage models for the CFI design geometry. To facilitate the application of these proposed models, this paper also includes a case study of a CFI at the intersection of MD 4 and MD 235 constructed by the Maryland State Highway Administration.