In order to reduce the traffic congestion and to enhance the capacity of urban road intersections, this paper
builds a model of the vehicle queuing system for the intersection by queuing theory Based on Monte Carlo algorithm, this
paper carries out simulation and analysis of the vehicle queuing system in the intersection by MATLAB, analyses, the
status of vehicle queue to reduce the vehicle queue waiting time, and explores methods to solve the problem of vehicle
queues at intersections. The optimal design for vehicle operating conditions has also been implemented from the perspective
of the queuing theory, facilities planning, Ergonomics and the management system. The results show that the analysis
and improvement to the existing access program of the intersection can effectively relieve the vehicles queuing problem
and promote the social service intensity of urban transportation system.