摘要
引入路段传输模型用于模拟不同的交通需求条件下道路渠化区的长度对交通流的影响。提出了路段任意位置车流密度的计算方法,并构造了一种新的方法计算拥挤延迟,用于评价交通流的运行状况。数值模拟结果表明,交通需求大小以及交通需求的均衡性是影响道路渠化长度的重要因素。此外,本文还探讨了交叉口信号控制下渠化区长度的优化设置。
In this paper,link transmission model(LTM) was applied to simulate traffic flow under various traffic demands,by which we can investigate the influence of the length of channelization area on the performance of traffic flow.An approach to calculate flow density anywhere of a link was proposed.A novel method was developed to calculate congestion delay,which is beneficial to evaluate the performance of traffic flow.Numerical examples show that the level and the uniformity of traffic demand are the key factors that impact the length setting of channelization area.In addition,the length setting of channelization area under signal control was discussed.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2009年第S2期41-46,共6页
Journal of Jilin University:Engineering and Technology Edition
基金
"973"国家重点基础研究发展规划项目(2006CB705500)
国家自然科学基金项目(70631001
70801004)
北京交通大学优秀博士生科技创新基金项目(48040)
关键词
交通运输工程
交通组织优化
渠化
路段传输模型
拥挤延迟
engineering of communication and transportation
traffic organization and optimization
channelization
link transmission model
congestion delay
