中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2014, Vol. 33 ›› Issue (5): 102-106.DOI: 10.3969/j.issn.1674-0696.2014.05.23

• • 上一篇    下一篇

基于安全和时间的广义路阻模型建立

孔令总1,柳本民1,周小焕1,李志中2   

  1. 1.同济大学 道路与交通工程教育部重点实验室, 上海 201804;2. 云南省交通科学研究所,云南 昆明 650011
  • 收稿日期:2013-04-14 修回日期:2013-05-07 出版日期:2014-10-15 发布日期:2015-03-10
  • 作者简介:孔令总(1988—),男,山东潍坊人,硕士研究生,主要从事道路工程方面的研究。E-mail:278887478@qq.com。
  • 基金资助:
    云南交通厅项目〔2011(B)06-b〕; 云南省科技计划项目(2012CA004)

Modeling of General Road Impedance Based on Security and Time

Kong Lingzong1, Liu Benmin1, Zhou Xiaohuan1, Li Zhizhong2   

  1. 1. Key Laboratory of Road & Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China; 2. Transportation Research Institute of Yunnan Province, Kunming 650011, Yunnan, China
  • Received:2013-04-14 Revised:2013-05-07 Online:2014-10-15 Published:2015-03-10

摘要: 为提高紧急情况下救援速度,实现对灾区最快的救援,需要建立紧急情况下最优路径选择模型。根据紧急情况下路网特性,提出了基于安全性和时间因素的广义路阻模型,该模型中引入了路网安全性指标,克服了以往路阻模型中只考虑时间单一因素的缺陷,对常态路阻模型进行了改进,最后利用Dijkstra算法获得紧急情况下最优路径选择模型。最后结合具体救援实例,建立最优路径选择模型,通过跟传统路径选择模型的对比,证明了该模型更加符合实际应急救援。

关键词: 交通工程, 重大自然灾害 , Dijkstra算法, 广义路阻, 最优路径

Abstract: In the case of emergency, in order to improve the speed of rescue and achieve the fastest relief in disaster areas, the optimized route selection model in emergency situations is needed to establish. A model of general road impedance based on security and time was proposed, according to the characteristics of the road network in the case of emergency. To overcome the defect of the conventional road impedance model considering only time factor, the network security was introduced into the model, which improved the conventional road impedance model. Finally, the optimized path in the case of emergency was obtained by Dijkstra Algorithm. Combined with the actual rescue case, the optimized route selection model was established, which was proved to be more suitable for the actual rescue by comparison with the conventional path selection model.

Key words: traffic engineering;major natural disaster, Dijkstra algorithm, general road impedance, optimized route

中图分类号: