Abstract:
The installation of left-turn waiting areas is one of the means to improve the operation efficiency of intersections. Howerer, some small intersections do not meet the conditions of installing left-turn waiting areas. Therefore, the method of virtual left-turn waiting area is proposed based on conflict point method. At the same time, the schedule model is established to ensure safety. A case of Zhen Ping county is used to simulate by VISSIM10.0. The simulation results show that the operation efficiency of the intersection is improved, and the total delay is reduced by 4.9% and the total capacity is increased by 3.1%. Especially, the left-turn delay is reduced by 9.1%, and the left-turn capacity is improved by 13.6%.