环境承载力约束下城市交通政策的节能减排效果评价研究  

Evaluation of Urban Transport Policy under Environmental Sustainability

作　　者：苗国强[1] 杨忠振[1] 

机构地区：[1]大连海事大学交通运输管理学院,辽宁大连116026

出　　处：《贵州大学学报（自然科学版）》2016年第1期127-131,共5页Journal of Guizhou University:Natural Sciences

基　　金：国家自然科学基金项目(51078049)

摘　　要：在城市环境承载力约束下,以城市可以保有的小汽车量最大为目标,基于双层优化模型来评价多种城市交通政策的节能减排效果。其中,上层模型以环境承载力为约束条件,以能够保有的小汽车数量最大化为目标函数,计算各种政策环境下的各小区小汽车保有数量。下层问题以城市道路网上交通流均衡为目标,以上层模型确定的小汽车数量和交通政策为前提条件,计算最优的用户出行时间以及环境负荷水平。上下层模型之间通过互动反馈来模拟各种交通政策下各种交通方式的分担率与路段上的交通流特征。为测试模型的实用性,设计遗传算法求解,并以大连市为实例实施数值计算与分析。Subject to urban environmental capacity, with the objective to maximize the accommodated car owner- ship, urban transport policies were evaluated based on bi-level programming model. The upper model calculates the maximum zonal car ownerships corresponding to different transport policy scenarios under the situation of traf- fic environmental load less than the urban environmental capacity. And the lower model calculates the optimal to- tal trip travel times and the corresponding traffic environmental load with user equilibrium assignment under the conditions of car ownerships and transport policy scenarios given in the upper model. Through feedback between the upper and lower models the link traffic flows and modal splits of the whole city under different policy scenarios can be obtained. To test the model, a Matlab-based genetic algorithm was designed and data Dalian was used to run the model.

关 键 词：双层规划 用户平衡分配模型 环境承载力 交通政策 道路交通环境负荷 

分 类 号：U121[交通运输工程]