基于修正线路介数中心度的公交骨干线提取方法  

Bus Main Line Extraction Method Based on Modified Line Betweenness Centrality

作　　者：吴娇蓉[1] 李铭 魏明[1] 

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海201804 [2]广西壮族自治区交通规划勘察设计研究院,广西南宁530022

出　　处：《同济大学学报（自然科学版）》2013年第7期1009-1014,共6页Journal of Tongji University:Natural Science

基　　金：国家自然科学基金(51278363);中央高校基本科研业务费专项资金

摘　　要：以复杂网络理论为基础,运用ArcGIS二次开发程序和Ucinet软件进行公交GIS(地理信息系统)网络分析,提出修正的线路介数中心度指标作为筛选公交骨干线路的新方法.以上海市浦东新区常规公交线网为例,将应用修正线路介数中心度筛选的公交骨干线方案与浦东新区公交骨干线实际规划方案从网络重合度、公交线路非直线系数、站间距、客流稳定性等方面进行差异性分析,说明新方法的合理性与科学性.结合公交骨干线网规划编制时面临的3种情况,讨论了新规划方法的适应性,提出骨干公交线网方案中约65%的线路可按照新方法进行提取.新方法基于GIS模型进行网络数据提取,具有实用性和通用性,能够作为公交骨干线规划的有效量化方法.Based on the theory of complex network, ArcGIS second development program and Ucinet software were employed for transit GIS network analysis, and a new planning method was proposed to filter out bus main lines with a modified line betweenness centrality index. By taking the bus network of Pudong New Area in Shanghai as an example, a comparative analysis was made between the new method and the actual planning scenario, and the feasibility and rationality of the new method were illustrated from the aspects of 4 indicators, including the coincidence degree of the network, non-linear coefficient, station spacing and passenger flow stability. According to three cases in the process of bus mainlines planning, the adaptability of the new method was discussed. Results show that about 65 % of the bus main lines in planning scenario can be extracted by this new method. The new method is practical and universal because of the advanced data extraction based on GIS model of network, which can be widely-used as an efficient quantitative method in the bus main line planning.

关 键 词：公交线网 骨干线 复杂网络 线路介数中心度 提取方法 ArcGIS二次开发 

分 类 号：U491.2[交通运输工程—交通运输规划与管理]