基于功效系数法的城市公交线网优化模型

城市公共交通线网优化是城市客运交通规划的重要部分之一。对现有公交线网进行优化,可以更有效地利用现有资源,解决城市交通问题。通过对城市公交线网优化的主要内容、优化模式、优化目标以及约束条件的分析,同时兼顾乘客出行时间、线网平均满载率、公交线网密度和公交线网的布局,对整个城市交通系统的影响提出优化目标的函数表达式及相应约束条件的数学表达式,建立公交线网优化的多目标模型。通过对模型的分析,提出可用功效系数法对模型进行寻优和评价。

Urban Public Traffic Network Optimization Model Based Upon Efficacy Coefficient Method

Urban public traffic network optimization is the key component in urban passenger traffic planning.Optimizing existing public traffic network may better utilize existing resources to solve urban traffic problems.Through analysis to content,optimization mode,optimization target and restriction conditions in urban public traffic network optimization,also taken into consideration influences to whole urban traffic system by travel period,average full load rate of traffic network,concentration of public traffic network and distribution of public traffic network,this paper puts forth functional expression of optimization target and mathematics expression for relevant restriction conditions,as well as sets up multiple target model for public traffic network optimization.Through analysis to models,it suggests using efficacy coefficient method to optimize and evaluate the models.