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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2016, Vol. 35 ›› Issue (1): 167-171.DOI: 10.3969/j.issn.1674-0696.2016.01.32

• 交通运输工程 • 上一篇    下一篇

基于相对熵模型的交通安全设施比选方法研究

赵晓华1，李佳辉1，万钰涵2，荣建1   

  1. 1. 北京工业大学 城市交通学院，北京 100124；2. 重庆市勘测院，重庆 400021
  • 收稿日期:2014-10-09 修回日期:2014-12-02 出版日期:2016-02-20 发布日期:2016-04-21
  • 作者简介:赵晓华 (1971—)，女，山西太谷人，教授，博士，主要从事交通信息与控制、驾驶行为与安全、交通仿真等研究方面的工作。E-mail：zhaoxiaohua@bjut.edu.cn。
  • 基金资助:
    国家自然科学基金项目(51108011)

Program Selection of Traffic Safety Devices Based on Relative Entropy Model

ZHAO Xiaohua1, LI Jiahui1, WAN Yuhan2, RONG Jian1   

  1. 1. College of Metropolitan Transportation, Beijing University of Technology, Beijing 100124,P.R.China; 2. Chongqing Survey Institute, Chongqing 400021,P.R.China
  • Received:2014-10-09 Revised:2014-12-02 Online:2016-02-20 Published:2016-04-21

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摘要： 合理设置交通安全设施是保障交通安全的重要措施之一，但存在较多设施评估比选问题。不同的决策者在选择设施方案时，往往依据个人偏好对方案评价指标的重要性进行判断。由此得到的指标权重向量具有方案倾向性，导致方案之间的竞争是不公平的。为解决此问题，选取北京市学校地区作为案例，综合考虑学校地区的安全性、驾驶员的舒适性、设施的成本等因素，利用驾驶模拟实验获取85th速度差、加速度标准差等作为方案的评价指标。并利用相对熵模型对不同专家给出的评价指标权重进行集结，求得对所有方案而言公平民主的权重向量。利用该权重向量和加权平均模型得到方案的综合评价值，最终得到方案的优劣排序，为决策者选择方案提供理论依据。

关键词: 交通运输工程, 交通安全设施, 学校地区, 方案比选, 相对熵模型

Abstract: One of the most important measures to improve the traffic safety is to reasonably install traffic safety devices, but there are many problems in the evaluation and selection of the devices. Different decision-makers often judge the importance of the evaluation index of the program according to their personal preferences in the choice of devices. Therefore, the weight vector of the index has a plan tendency, and the competition among the schemes is not fair. In order to solve the problem, a case study on the traffic safety devices around school zone in Beijing was carried out, and factors such as 85th speed difference and standard deviation of acceleration obtained by simulation test were selected as evaluation indicators of the program, with the comprehensive consideration of the safety of school zone, the comfortableness of drivers, the cost of devices and etc.. The relative entropy model was used to aggregate the weight of evaluation indicators given by different experts; therefore, the weight vector which was fair and democratic for all the programs was obtained. Finally, by using the obtained weight vector and the weighted average model, the comprehensive evaluation value of the program was obtained and the ranking of the programs was also obtained, which could offer theoretical foundation for decision-makers to select the program.

Key words: traffic and transportation engineering;traffic safety devices, school zone, program selection, relative entropy model

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