Research on Impacts of Rainfall on Free Flow and Non-Free Flow of Expressway

Yuhong Yao,Jinliang Xu,Jinsong Ran,Zhenhua Sun

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)（2021）

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摘要

Rainfall, as the most common adverse weather, has many bad effects on expressway traffic flow. At present, the research on the impacts of rainfall on expressway traffic flow mainly uses free flow speed, traffic capacity to characterize the degree of impacts. For free flow and non-free flow, whether the impact of rainfall is consistent is not clear. In order to explore the impact of rainfall on fre...

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Keywords-traffic flow,expressway,rainfall,adverse weather

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