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铁路通信信号工程技术 ›› 2021, Vol. 18 ›› Issue (9): 49-53.DOI: 10.3969/j.issn.1673-4440.2021.09.010

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城市轨道交通路网建模中路径搜索算法的实现

肖 晨1,何跃齐2,赵嘉伟3,张 宁3   

  1. 1.天津轨道交通运营集团有限公司,天津 300392;
    2.北京城建设计发展集团股份有限公司,北京 100045;
    3.东南大学智能运输系统研究中心轨道交通研究所,南京 210018
  • 收稿日期:2020-07-10 修回日期:2021-07-27 出版日期:2021-09-24 发布日期:2021-10-12
  • 基金资助:
    中华人民共和国交通运输部建设科技项目(2015318J33080);南京地铁“十三五”工程专项科技项目(JS-D6-XY01-0000-1708)

Implementation of Path Search Algorithms in Urban Rail Transit Network Modeling

Xiao Chen1,  He Yueqi2,  Zhao Jiawei3,  Zhang Ning3   

  1. 1. Tianjin Railway Transit Operation Group Co., Ltd., Tianjin    300392, China;
    2. Beijing Urban Construction Design & Development Group Co., Limited, Beijing    100045, China;
    3. ITS Rail Transit Research Institute of Southeast University, Nanjing    210018, China
  • Received:2020-07-10 Revised:2021-07-27 Online:2021-09-24 Published:2021-10-12

摘要: 路径搜索算法是路网模型的基础,高效的搜索算法是实现客流实时仿真的保障,现阶段轨道交通领域路径搜索算法大多以最短路径搜索算法为基础进行改进,搜索效率有待提高。利用深度优先搜索思想,根据轨道交通路网特征简化路网的同时,提出一种限制搜索深度的搜索算法,经验证,该算法在保证搜索准确性的同时,明显提升有效路径的搜索效率,并具有良好的可移植性,能够满足实时客流仿真的要求。

关键词: 轨道交通, 网络化运营, 路网仿真模型, 路径搜索算法

Abstract: The path search algorithm is the basis of the network mode. An efficient search algorithm can guarantee in-time simulation. At present, most of the path search algorithms in the field of rail transit are improved on the basis of the shortest path search algorithm, and the search efficiency needs to be improved. In this paper, a new searching algorithm is proposed based on the characteristics of the rail transit network in Tianjin. Contrasted with other methods, it improves the search efficiency of K short-path obviously, has good portability, and can meet the requirements of real-time simulation

Key words: rail transit, network operation, network simulation model, path search algorithm

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