西南交通大学学报Issue(5)：811-816,6.DOI:10.3969/j.issn.0258-2724.2014.05.011
城市快速路网行程时间计算与最优路径选择算法
Travel Time Computation and Optimal Path Selection Algorithm of Urban Expressway Network
摘要
Abstract
In order to improve the overall functionalities and utilities of urban expressway network,a travel time computation and optimal path selection algorithm was proposed for urban expressway network by utilizing the dynamic traffic data acquired along expressway segments in real time. According to the influential patterns of dynamic traffic factors on travel time,this algorithm classifies the urban expressway network into non-jammed and jammed segments,and computes their travel time using safe stop distance and residual traffic capacity,respectively. The minimum overall travel time is taken as optimization criteria for optimal path selection of urban expressway network. As a case study, this algorithm was applied to Xi'an urban expressway network. The analysis results show that the optimal paths selected are in good agreement with the practical cases. The coincidence rate error is kept within 15%,and the distance of optimal path is about 1. 84 times that of the shortest path.关键词
城市快速路网/行程时间计算/最优路径选择/安全停车距离/剩余通行能力Key words
urban expressway network/travel time computation/optimal path selection/safe stop distance/residual traffic capacity分类
交通工程引用本文复制引用
闫茂德,常楠楠,张昌利..城市快速路网行程时间计算与最优路径选择算法[J].西南交通大学学报,2014,(5):811-816,6.基金项目
交通运输部应用基础研究项目（2011319812400）；陕西省自然科学基础研究计划项目（2011JM8010，2013JM8017）；中央高校基本科研业务费专项资金资助项目 （）
