随机需求多目标连续均衡网络设计  

Network design of multi-objective continuous equilibrium with stochastic demand

作　　者：方文彬[1] 王涛 黄汝晴 黄中祥[1] 曾铃[1] FANG Wenbin;WANG Tao;HUANG Ruqing;HUANG Zhongxiang;ZENG Ling(School of Traffic and Transportation Engineering,Changsha University of Science and Technology,Changsha 410004,China;School of Traffic and Transportation Engineering,Central South University,Changsha 410075,China)

机构地区：[1]长沙理工大学交通运输工程学院,湖南长沙410004 [2]中南大学交通运输工程学院,湖南长沙410075

出　　处：《中南大学学报（自然科学版）》2018年第9期2350-2355,共6页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(51338002;51208064);湖南省研究生科研创新项目(CX2015B342)~~

摘　　要：为考察多目标特性以及需求不确定性对网络设计的影响,假设OD(origindestination)需求服从双侧截尾正态分布,构建多目标连续均衡网络设计的双层规划模型。上层规划以系统出行时间的期望最小、路网服务水平可靠性最大和投资预算最小为目标,下层规划采用用户均衡分配刻画出行者路径选择行为。给出基于蒙特卡洛仿真的多目标遗传求解算法,采用测试网络验证模型和算法的有效性。研究结果表明:采用多目标连续均衡网络设计模型可以获得多个非劣解供决策者选择;不同目标之间存在明显的相关关系,尤其是投资手段存在明显的边际递减效应,宜结合交通管理措施共同使用。To investigate the impacts of multi-objective characteristics and the uncertain traffic demands on road network design,a bi-level programming model for the continuous equilibrium network design with multiple objectives was proposed with the assumption that the OD(origin destination)demands followed the bilaterally truncated normal distribution.The upper-model was a multi-objective programming model with the minimum expected network travel time,the maximum reliability of network service level and the minimum investment budget.The lower-level model was a user equilibrium distribution model.A multi-objective genetic algorithm was employed to solve the problem based on the Monte Carlo simulation.A small-scale network was used to demonstrate the validity of the model and the algorithm.The results show that the multi-objective continuous equilibrium network design model can measure some indicators comprehensively,and obtain as many non-inferior solutions as possible for decision makers to choose.There is a clear correlation between the objectives.In particular,the investment has significant marginal diminished effect,and should be used together with traffic management measures.

关 键 词：连续均衡网络设计 多目标规划 双层规划 服务水平可靠性 第二代非支配排序遗传算法 

分 类 号：U491[交通运输工程—交通运输规划与管理]