交通运输系统工程与信息

交通运输系统工程与信息 ›› 2010, Vol. 10 ›› Issue (4): 179-185 .

• 案例分析 • 上一篇    下一篇

山区双车道公路横断面要素安全性研究

张铁军*1,2;唐琤琤2；王蓉蓉3   

  1. 1.北京交通大学，北京 100044； 2.交通部公路科学研究院，北京 100088； 3.河北工程技术高等专科学校，河北 沧州 061001
  • 收稿日期:2009-04-24 修回日期:2009-08-11 出版日期:2010-08-25 发布日期:2010-08-25
  • 通讯作者: 张铁军
  • 作者简介:张铁军(1978-)，男，河北丰润人，博士生，高级工程师.
  • 基金资助:

    西部交通建设科技项目（2004 318 223 33-1）

Safety of Cross-Section on Two-Lane Highways in Mountainous Areas

ZHANG Tie-jun 1,2;TANG Cheng-cheng 2;WANG Rong-rong 3   

  1. 1.Beijing Jiaotong University, Beijing 100044, China; 2.Research Institute of Highway，Ministry of Communications, Beijing 100088, China； 3.Hebei Engineering and Technical College, Hebei Cangzhou 061001, China
  • Received:2009-04-24 Revised:2009-08-11 Online:2010-08-25 Published:2010-08-25
  • Contact: ZHANG Tie-jun

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被引次数

13

摘要： 横断面要素指标是双车道公路的重要控制指标，上述指标的选择对于双车道公路的安全性和通行能力有很大影响，在山区尤为明显. 本文根据24条山区双车道公路的现场勘察结果和交通事故、交通组成等数据，对山区双车道公路横断面要素的安全性进行了分析研究. 研究内容包括路基宽度、车道宽度和路肩宽度指标对全部事故和不同形态事故的影响规律，并借用负二项分布模型针对路基宽度指标进行了事故预测研究. 研究结果表明，路基宽度和路肩宽度对于全部事故和各类别事故的影响整体上皆为先增加后降低的趋势；构建的追尾事故预测模型中货车比例、接入口、路基宽度的二次式几个因素将增加追尾事故，而路基宽度的增加有利于降低追尾事故.

关键词: 公路运输, 双车道公路, 路基, 路肩, 事故预测模型

Abstract: The width of subgrade and shoulder has strong relationship with the safety and capacity of two-lane highways in mountainous areas. On the basis of the survey data collected from 24 two-lane highways in mountainous areas, the paper explores the relevant safety factors in this kind of area. It analyzes the relationships of all accidents, injury accidents, rear accidents, roadside accidents and collision accidents with the factors of subgrade and shoulder. Negative Binomial regressions are applied to fit the total crashes with subgrade width, truck proportion, and other factors. The results indicate that all kinds of accidents increase first and decrease then with the increases of subgrade and shoulder width. In the rear-end prediction model, several factors like the propitiation of truck and entrances lead to more rear-end crashes, and the increase of subgrade width reduce the probabilities of rear-end crashes.

Key words: highway transportation, two-lane highway, subgrade, shoulder, accident prediction model

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