Digital modeling analysis of urban road traffic capacity under the condition of traffic accidents

Traffic capacity in an accident site of the lane is investigated by analyzing the urban road traffic accident. The accident is caused by the vehicles in the upstream intersection traffic jam time. A hypothesis model is established to describe a relationship between the vehicle queue length and the cross-sectional actual capacity in the accident. In order to verify the rationality of the assumptions and the structural equation model, an appropriate index model is analyzed by means of the calculation. The last VISSIM traffic microscopic simulation system model is constructed to simulate the change of the queue length under the influence of various factors. The specific values and corresponding time of the queue length can be predicted by utilizing the data of the VISSIM output queue length.