基于最小延误费用的可变车道数调整模型  

Variable Lanes Number Adjustment Model Based on the Smallest Delay Cost

作　　者：韩璧璘[1] 宋瑞[1] 何世伟[1] 刘环宇[1] 

机构地区：[1]北京交通大学城市交通复杂系统理论与技术教育部重点实验室,北京100044

出　　处：《道路交通与安全》2009年第3期1-5,共5页Road Traffic & Safety

基　　金：国家高科技资助项目"863计划"(2006AA11Z203;2007AA11Z208);北京交通大学科技基金资助项目(2006XZ004)

摘　　要：考虑在"潮汐式"车流条件下道路的双向流量不平衡,研究以用户最小延误费用为目标的可变车道变换调整方案。将可变车道数作为决策变量建立模型,并给出模型的求解步骤。利用交通仿真软件V issim结合具体算例进行分析,验证模型的可行性与可用性,并计算出合理的可变车道数。结果证明当方向分布系数大于等于2/3、道路交通条件允许时,设置可变车道可降低所有车辆的延误时间和延误费用。By considering the unbalance＂ tide traffic＂, variable lanes adjustment method for the smallest user delay cost is studied. A mathematical model is formulated with decision variable of the number of variable lanes, as well as its solution algorithm. Using a numerical case with simulation software Vissim, the feasibility and availability is verified, and the reasonable number of the variable lanes is calculated. The result proves that in the cases of existing a direction distribution factor which is larger than 2/3 ,setting the variable lanes can decline the delay time and the delay cost in certain allowable traffic conditions

关 键 词：可变车道 “潮汐式”交通 延误费用 交通仿真 

分 类 号：U491.232[交通运输工程—交通运输规划与管理] S757.46[交通运输工程—道路与铁道工程]