The influence area of urban road traffic accident is studied in order to take effective measures for reducing the impact. On the basis of analyzing that traffic accident impacts on road network, the accident effect includes two processes of vehicle queue formation and queue dissipation, the relationship of them belongs to inclusion relation on the time dimension. According to the loss of traffic capacity during the period of handling traffic accident, congestion traffic volume caused by accident is defined. The instantaneous line source diffusion plume model is introduced to establish the maximum impact distance model of roads connecting with accident point. The model is used to determine the influence area of urban road traffic accident. The maximum impact distance model is illustrated through an example. The research result shows that influence area determined by this model is consistent with the actual situation, which can provide the basis for traffic department to take timely control measures.
Model of Traffic Accidents Influence Area on Urban Road
First International Conference on Transportation Information and Safety (ICTIS) ; 2011 ; Wuhan, China
ICTIS 2011 ; 729-737
2011-06-16
Conference paper
Electronic Resource
English
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