基于左转展宽的交叉口时空一体化优化设计OA

Aiming at the low operation efficiency of the urban intersection,based on the widening of the left-turn lane,this paper constructs a spatio-temporal integration optimization design model of signalized intersection with traffic capacity and average vehicle delay as the optimization index,and uses MATLAB software to solve the optimization model,and the results show that the average vehicle delay of the optimized intersection is re-duced by 20.7%and the left-turn queue length is shortened by 13.3 m.The model can effectively improve the overall traffic efficiency of intersections,reduce the traffic delay of intersections.