测绘学报 ›› 2021, Vol. 50 ›› Issue (12): 1650-1662.doi: 10.11947/j.AGCS.2021.20200470

• 位置服务与地理空间信息处理 • 上一篇    下一篇

基于出租车轨迹的可导航路网构建

张彩丽1,2, 向隆刚1, 李雅丽1, 王文龙3   

  1. 1. 武汉大学测绘遥感信息工程国家重点实验室, 湖北 武汉 430079;
    2. 邵阳学院城乡建设学院, 湖南 邵阳 422000;
    3. 国网思极神往位置服务(北京)有限公司, 北京 100000
  • 收稿日期:2020-09-21 修回日期:2021-05-08 发布日期:2022-01-08
  • 通讯作者: 向隆刚 E-mail:geoxlg@whu.edu.cn
  • 作者简介:张彩丽(1989—),女,博士,研究方向为轨迹数据挖掘、可导航路网构建等。
  • 基金资助:
    国家自然科学基金(41771474;42071432);国家电网有限公司总部科技项目(5700-201919244A-0-0-00)

Construction of navigable road network based on taxi trajectories

ZHANG Caili1,2, XIANG Longgang1, LI Yali1, WANG Wenlong3   

  1. 1. State Key Lab of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China;
    2. Urban and Rural Construction College, Shaoyang University, Shaoyang 422000, China;
    3. State Grid Siji Shenwang Location Service(Beijing) Co., Ltd., Beijing 100000, China
  • Received:2020-09-21 Revised:2021-05-08 Published:2022-01-08
  • Supported by:
    The National Natural Science Foundation of China (Nos. 41771474;42071432);The State Grid Corporation Headquarters Technology Project(No. 5700-201919244A-0-0-00)

摘要: 出租车轨迹不仅反映城市路网的静态几何与拓扑结构,而且蕴含转向等动态导航信息。考虑到交叉口的位置、拓扑连接及转向规则是构建可导航路网的基础与关键,本文利用出租车轨迹的空间分布与动态连接信息,采用“交叉口位置—路段几何—导航属性”的研究思路,提出一种交叉口引导的可导航路网构建方法。设计了一种顾及多模特征的交叉口集成识别技术,并引入随机森林算法,探索待定交叉口的零标注监督式去伪;在此基础上提出一种基于Delaunay三角网的多阶段路段生成方法;最后围绕交叉口,挖掘路段的转向及单双向信息,从而构建出可导航路网。与其他方法相比,本文方法在交叉口、路段及转向等可导航路网信息提取方面具有更高的完整性与准确性。

关键词: 出租车轨迹, 可导航路网构建, 交叉口识别

Abstract: Taxi trajectories not only reflect the static geometrical and topological structures of urban road network, but also carry dynamic navigation information such as turning relationship. Considering that the location, topological connection and turning rules of road intersection are the basis and key to the construction of navigable road network, this paper made full use of the spatial distribution and dynamic connection information of taxi trajectories and proposed a navigable road network generation method guided by intersection information, which adopts the research idea of “intersection location—road segment geometry—navigation attribute”. Firstly, an integrated intersection recognition technology considering multi-mode features was designed, and then the random forest algorithm was introduced to explore a zero-label supervised anti-counterfeiting strategy for eliminating false intersections; on this basis, a multi-stage road segment generation method based on Delaunay triangulation network was proposed; finally, the turning relationship and one/two-way information of road segment, which are closely related to intersections, were further captured so as to derive a navigable road network. Compared with other methods, the proposed method achieves higher completeness and accuracy for the extraction of navigable road network information such as road intersection, road segment and turning relationship.

Key words: taxi trajectory, construction of navigable road network, road intersection recognition

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