信号交叉口车辆延误的计算与分析摘要本文首先对单车道情形进行了分析，提出了饱和度的概念，然后再通过饱和度的不同，建立HCM延误模型求出信号交叉口车辆的延误。当饱和度 ，此时车辆延误仅由均匀延误组成，则只需计算出均匀延误即可；当饱和度 ，此时车辆的延误包括均匀延误和因过饱和状态而产生的增量延误两部分。对于以上两种情况，如果存在初始排队，则还要加上初始排队延误。这样便得到了单车道情形下车辆延误的计算，再通过加权平均法，将单车道的情形扩至整个信号交叉口，得出信号交叉口车辆的延误。
关键词：信号交叉口；饱和度；HCM延误模型；车辆延误；
The calculation and analysis of vehicle delay
at signalized intersection
ABSTRACT
First of all, this paper analyzes the situation of one-lane, proposed the concept of saturation, and then from different degrees of saturation, establishes the HCM delay model to extract the delay of signalized crossing. When the degree of saturation is smaller or equal to one, the vehicles delay is only composed of the homogeneous delay, then it is only necessary to calculate the homogeneous delay ; When the degree of saturation is greater then one, then the vehicles delay contains two parts : the even delay and incremental delay caused by the saturation state. Regarding both situations, if there is initial queue, then we need to add initial delay. Thus the papers obtains the computation of vehicles delay under the single lane situation, then by using weighted average method, the paper extends single way situation to the entire signal road intersection and obtains the vehicles delay at the signalized crossing.
Key Words: signalized crossing ；saturation；HCM delay model；vehicles dela
*若需了解更多与协助请咨询↓→[电脑QQ][手机QQ]【数据协助】
