摘要
研究无公交专用信号的信号交叉口乘客延误的优化问题.以HCM2000中的信号交叉口延误公式和Dual Ring信号模式为基础,考虑公交车辆载客率较高的特性,建立了基于乘客延误的信号交叉口配时优化模型,并利用协调变换方法对模型进行改进,使得模型能够采用经典的广义既约梯度法(GRG)进行优化求解.运用本文模型进行实例分析,分析表明,在较高流量饱和度和公交车混入率的情况下,采用本文模型可以降低交叉口乘客人均延误10%以上.
This paper presented a passenger delay optimization model of a signalized intersection without bus signal. The paper analyzes the delay model and Dual Ring timing pattern in HCM2000, takes into account the high occupancy character of buses and builds a passenger delay based intersection timing optimization model. Moreover, a kind of coordinate transformation technique was employed to amend the model, which made the model solvable by the widely used generalized reduced gradient method （GRG）. Furthermore, case studies were carried out to evaluate the performance of the model. The results have shown that the new model can reduce signal intersection passenger delay, in case of high intersection traffic volume and high bus ratio, and the decrease can be more than 10 %.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第9期22-26,共5页
Journal of Hunan University:Natural Sciences
基金
国家自然科学基金重点资助项目(70631002/G010301)
关键词
信号交叉口
配时优化
乘客人均延误
协调变换
signalized intersection
optimal timing
passenger delay
coordinate transformation
