基于旅客运输可达性的空间均衡模型  

A New Spatial Equilibrium Model Including Passenger Transportation: An Accessibility Perspective

作　　者：徐勇敢[1] 张宁[1] 

机构地区：[1]北京航空航天大学经济管理学院,北京100191

出　　处：《交通运输系统工程与信息》2010年第3期75-79,共5页Journal of Transportation Systems Engineering and Information Technology

基　　金：国家自然科学基金(70521001);教育部新世纪优秀人才资助(NCET-04-0173)

摘　　要：本文旨在研究旅客运输对于商品空间流动的影响,从而探寻适合区域经济发展的最优交通方式组合.传统的空间均衡模型只考虑货运价格的因素,而忽略了商务旅客运输对于区域间贸易的作用.本文在传统的空间均衡模型中加入旅客运输的约束,提出了客运支撑系数的概念,构建了一个包含旅客运输的空间均衡模型.新模型克服了传统空间均衡模型缺点,考察旅客运输对于货物贸易的支撑作用,从时间花费角度说明客运可达性对于货物贸易的影响.并结合算例,分析不同的交通方式组合对区域间贸易量和均衡价格的作用和影响.分析结果表明:区域经济合作和贸易发展既需要便宜的货物运输方式,也需要快速、可达的旅客运输方式.This paper investigates a new way to identify how comprehensive transport network affects the trade flow and economic cooperation among different regions.Based on literature reviews on spatial equilibrium model,a new spatial equilibrium model including both passenger and freight transportation is developed.It is an improvement of the classic spatial equilibrium model,in which passenger transportation is not taken into account.A concept of passenger-support-measure is proposed to illustrate passenger transportation＇s significant impact upon trade flows among different regions.From accessibility perspective,travel time is a key factor for passenger transportation.A numerical example is used to validate the proposed model.The result shows that trade among different regions needs both inexpensive freight transportation and accessible passenger transportation.

关 键 词：综合交通运输 空间均衡模型 客运支撑系数 可达性 重力模型 

分 类 号：U491[交通运输工程—交通运输规划与管理]