The Optimization Design and Evaluation Method of Urban Road Grade Intersection
The increase of vehicles has brought pressure to urban road traffic,especially when the distance between different intersections is close,traffic congestion and frequent accidents are more likely to occur.The model is established by TruckSim software,and the optimization design measures and evaluation methods of urban road grade intersection are analyzed based on the actual engineering of main road intersection.The results show that in the process of optimizing the urban road grade intersection,it should be optimized according to the principles of traffic separation,balanced traffic pressure and convenient travel;before and after relevant optimization measures are taken,the maximum error of driving trajectory is reduced from 0.252 m to 0.211 m,and the optimization rate is 16.2%;the optimized intersection adopts vertical design,which reduces the driving trajectory error and improves the driving safety.