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《城市交通》杂志
2016年 第1期
基于数据融合的公交客流规模测算方法
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文章编号: 1672-5328(2016)01-0043-08

李林波,姜屿,王婧,吴兵
(1.同济大学道路与交通工程教育部重点实验室,上海201804;2.济南市规划设计研究院,山东济南250101)

摘要: 公交客流规模测算往往存在调查成本受限和准确度要求较高的矛盾。提出基于公交IC 卡历 史数据与人工补充调查数据的数据融合测算方法,以准确推算公交客流规模。首先根据公交线路的 基本属性,采用聚类分析方法划分线路类型,从每一类中选择具有代表性的线路。基于IC 卡数据 分析公交客流时变特征,运用有序样本聚类Fisher 算法将线路小时刷卡量进行聚类分析。划分刷卡 量相似时段,进而采用优化方法确定调查抽样率,确定相应的调查车辆进行人工补充调查,最终经 过数据融合计算获得公交客流规模。基于上海市某辖区IC 卡数据进行案例分析,测算得到三类公 交线路的日均客流量。

关键词: 公共交通;客流规模;聚类分析;数据融合;公交IC卡;上海市

中图分类号: U491

文献标识码:A

Passenger Volume Estimation Based on Data Fusion

Li Linbo, Jiang Yu,Wang Jing,Wu Bing
(1. The Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China; 2. Ji'nan City Planning and Design Institute, Ji'nan Shandong 250101, China)

Abstract: Accurate passenger flow estimation through surveys does not come without costs. This paper proposes a data fusion method based on the data from public transit IC card and supplementary surveys to accurately estimate passenger flow information. This paper first divides bus service routes into groups by their characteristics using cluster analysis method, and then selects one representative route from each group. Based on the temporary variation of bus passenger flow extracted from IC cards data, the paper categorizes IC card charging records per hour using Fisher algorithm of ordered sample cluster. By grouping time periods with similar IC card charging volumes, the paper determines the optimized sample rate and corresponding buses for the supplementary surveys. Consequently, bus passenger flows are estimated by data fusion method. Taking one district in Shanghai as an example, the paper demonstrates how to estimates daily passenger volumes of three types of bus routes using the above method.

Keywords: public transit; passenger volume; cluster analysis; data fusion; public transit IC card; Shanghai