Safety early warning model of freeway emergency influenced by multiple factors

doi:10.16265/j.cnki.issn1003-3033.2018.01.009

Abstract

Abstract: To prevent and deal with emergencies on the freeway in time, a basic model and three submodels were built for early warning of emergencies on freeway. The vehicular traffic, driver behavior, freeway condition and abnormal weather, were identified as the factors influencing freeway emergencies. Three safety early warning indexes of traffic, road operation and weather state were proposed. A safety warning signal output diagram was used to show the operation state of freeway at different times. The effectiveness of the model and the submodels was tested by data on a certain traffic accident happened on the Jing-Shen freeway. The research shows that the model and the submodels can be used to identify the possible crisis, find the hidden danger in the freeway in time, and accurately reflect the safety state before and after the emergency.

Key words: freeway, emergencies, safety early warning, influencing factors, running state

CLC Number:

X951

CHEN Lingling, LI Feng, YANG Jiaqi, WANG Jian. Safety early warning model of freeway emergency influenced by multiple factors[J]. China Safety Science Journal, 2018, 28(1): 50-55.

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