测绘通报 ›› 2018, Vol. 0 ›› Issue (6): 73-77.doi: 10.13474/j.cnki.11-2246.2018.0179

• 学术研究 • 上一篇    下一篇

结合空间相关性的城市热点路段提取方法

刘家良, 孙立双   

  1. 沈阳建筑大学交通工程学院, 辽宁 沈阳 110168
  • 收稿日期:2018-01-15 修回日期:2018-02-24 出版日期:2018-06-25 发布日期:2018-07-07
  • 作者简介:刘家良(1993-),男,硕士,主要研究方向为GIS。E-mail:JL37448@163.com
  • 基金资助:
    国家自然科学基金(51774204);辽宁省重点研发计划指导计划(2017231008)

Extraction of Urban Hot Sections Based on Spatial Correlation

LIU Jialiang, SUN Lishuang   

  1. School of Traffic Engineering, Shenyang JianZhu University, Shenyang 110168, China
  • Received:2018-01-15 Revised:2018-02-24 Online:2018-06-25 Published:2018-07-07

摘要: 城市机动车的数量急剧增加给城市带来了严重的交通拥堵问题。为了缓解城市交通压力,本文提出一种城市热点路段的提取方法。该方法首先结合出租车轨迹数据,依据拓扑邻接的规则建立了空间权重矩阵;然后对各个路段交通量的全局相关性进行分析,并通过局部相关统计量提取了城市交通热点路段,对工作日不同时段内的交通热点路段分布进行了分析;最后通过VISSIM软件对已提取的热点路段进行仿真,得到待验证路段的热点路段隶属程度为0.512,从而表明该算法能够有效地提取城市交通的热点路段。

关键词: 空间相关性, 热点路段, 交通, 空间权重矩阵, VISSIM

Abstract: The rapid increase of the amount of urban motor vehicles has brought serious traffic jams.In order to release the pressure of urban traffic,an extraction method of urban hot sections was proposed.Combining with the data of taxi track,the spatial weight matrix was set up with the rule of topological adjacency.Then the global relevance of traffic volume in various sections was analyzed.Next,the traffic hot sections were extracted based on local correlation statistics,and the distribution of traffic hot sections in different periods at workdays was analyzed.Finally,the hot section which has been extracted was simulated by using VISSIM software.The results show that the affiliation degree of the road section which needs to be verified was 0.512,which indicates that the algorithm is able to extract urban traffic hot sections effectively.

Key words: spatial correlation, hot sections, traffic, spatial weight matrix, VISSIM

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