铁道科学与工程学报2016，Vol.13Issue(7)：1414-1419,6.
城市大规模交通网络低效路段组合定位及分析
Locating and researching of inefficient road clusters in a large-scale transportation network
摘要
Abstract
In this paper,road and cluster of roads in transportation network were classified as inefficient or nec-essary according to their effect on the efficiency of the road network,based on Braess's paradox.Reasonable clo-sure of inefficient links can reduce travel costs considerably,while the failure of necessary links would result in extra travel delays.We modified the adaptive genetic algorithm to pinpoint inefficient road clusters in a real large-scale traffic network.Actual transportation network data from geographical information systems (GIS)and daily commuting origin destination matrix in the San Francisco were used.Our empirical results show that inefficient road clusters include not only inefficient road but also necessary road.Meanwhile,the degree of inefficiency |ΔTS| increases first and then decreases as the number of roads in the road clusters increase.Inefficient road clus-ters contain less road with large |ΔTS|,which is much more common as well.关键词
城市交通效率/布雷斯悖论/大规模交通网络/自适应遗传算法Key words
efficiency of urban traffic/Braess ’s paradox/large scale transportation network/adaptive genetic algorithm分类
交通工程引用本文复制引用
孙黎,凌溪蔓,谭倩,王璞..城市大规模交通网络低效路段组合定位及分析[J].铁道科学与工程学报,2016,13(7):1414-1419,6.基金项目
中央高校基本科研业务费专项资金资助项目 （）
