基于TransCAD的物流园区货运交通流分配研究  

The Research of Logistics Park's Freight Traffic Flow Assignment Based on TransCAD

作　　者：刘淮源 李慧颖 李婷 武亚鹏 LIU Huaiyuan;LI Huiying;LI Ting;WU Yapeng(Central South Survey Design Institute Group Co.,Ltd.,Wuhan 430073,China)

机构地区：[1]中南勘察设计院集团有限公司,武汉430073

出　　处：《现代交通技术》2022年第4期62-67,共6页Modern Transportation Technology

摘　　要：物流园区作为城市实现物流功能的货物集散中心,其货运交通流特性与一般的城市交通流有所不同,传统的交通流分配方法不能完全适用于物流园区的货运交通流分配。选取物流园区货运交通流为研究对象,采用精度较高、结构较为简单的交通流用户平衡模型框架,以传统的BPR(Bureau of Public Road)函数为基础,从道路等级、道路混流特性和交通流时间分布不均衡性3个因素对BPR函数进行改进,设计出符合物流园区特性的路阻函数,最后运用TransCAD软件验证模型与函数的科学性与合理性。Logistics park is the freight hub for the city to achieve logistics function,so the traffic flow characteristics are different from the general urban traffic flow.The traditional traffic assignment method can’t completely apply the assignment of the logistics park traffic flow.Taking the freight traffic flow in the logistics park as the research object,selects the traffic flow user equilibrium model with high precision and simple structure,and then improves the BPR function from three factors:road grade factor,road mixed flow characteristic factor and traffic flow time distribution imbalance,and designs the road resistance function in line with the characteristics of the logistics park.Finally,this paper uses TransCAD to verify the scientificity and rationality of the model and function.

关 键 词：交通流分配 BPR函数 物流园区 交通流特性 TRANSCAD 

分 类 号：U492.3[交通运输工程—交通运输规划与管理]