交通信息与安全Issue(5)：84-90,111,8.DOI:10.3963/j.issn 1674-4861.2015.05.013
基于手机信令数据的交通 OD 提取方法改进∗
An Improved Method of Extracting OD Information Based on Mobile Phone Data
摘要
Abstract
Mobile phone network data has been wildly used in origin-destination (OD)survey.To extract OD data from cellular data,there are two key steps:identifying travel endpoints;and matching them with traffic analysis zones (TAZs).The assumptions about cellular signal coverage in existing studies are quite different from the reality,which leads to complex analysis processes with low accuracy.Two improved methods were proposed to address such issues, based on the analyses about the features and application conditions of traditional TAZ and cell clustered TAZ.For tradi-tional TAZ,the matching accuracy of travel endpoint location is increased by identifying the maximum coverage areas of base stations,and by excluding those areas that are inaccessible using the maximum travel distances.This method is found to be effective for improving the matching accuracy of a portion of travel origin/destination points.For cell clustered TAZ,the cluster process is improved by removing less important steps.Then it is found that the method becomes simp-ler,but the matching accuracy remains to be very similar.关键词
交通大数据/手机信令数据/交通OD/交通小区划分/出行端点匹配Key words
big data/network cellular data/traffic OD/traffic analysis zones division/travel endpoint mapping分类
交通工程引用本文复制引用
胡永恺,宋璐,张健,冉斌..基于手机信令数据的交通 OD 提取方法改进∗[J].交通信息与安全,2015,(5):84-90,111,8.基金项目
国家重点基础研究项目(批准号:2012CB725400)、江苏省普通高校研究生创新基金项目(批准号:CXZZ12_0115)资助 （批准号:2012CB725400）
