有行人相位交叉口车辆延误计算方法对比研究

Calculation of Vehicle Delay at Signalized Intersection with Exclusive Pedestrian Phase

分析了行人专用相位的信号交叉口冲突,阐述了交叉口车辆延误的计算方法.以涵盖行人专用相位的四相位交叉口为案例,在交通调查的基础上采用点样本法、HCM2000模型和我国道路通行能力手册模型以两种过程计算延误.结果表明:我国道路通行能力手册模型计算的饱和度基本反映了实际交叉口的拥堵状况;延误值随着饱和度的增加与实际值误差较大.

The conflict at signalized intersection with exclusive pedestrian phase is analyzed and the the calculation of vehicle delay is elaborated. With a four - phase intersection as a case, in the basis of traffic survey, the vehicle delay is calculated throuth the dotsample method, HCM2000 method and China＇s road capacity manual model method. The results show that the saturation calculated by China＇s road capacity manual model basically reflects the congestion of actual intersection, however, the error of vehicle delay value becomes larger with the increase of the saturation.