双车道公路线形一致性评价模型

交通运输系统工程与信息 ›› 2008, Vol. 8 ›› Issue (5): 94-100 .

双车道公路线形一致性评价模型

涂圣文^*1,2;过秀成¹;何建明³

1. 东南大学交通学院南京 210096; 2. 长沙理工大学交通运输工程学院长沙 410076;3.中国公路工程咨询集团有限公司北京 100097

收稿日期:2008-06-10 修回日期:2008-09-07 出版日期:2008-10-25 发布日期:2008-10-25
通讯作者: 涂圣文
作者简介:涂圣文（1975-），男，湖北仙桃人，讲师。

Evaluation Model for Alignments Consistency of Two-lane Highways

TU Sheng-wen^1,2;GUO Xiu-cheng¹,HE Jian-ming³

1. School of Communication, Southeast University, Nanjing 210096, Jiangsu,China; 2. School of Traffic &Transportation Engineering, Changsha University of Science and Technology, Changsha 410076, Hunan,China;3. China Highway Engineering Consulting Group LTD., Beijing 100097, China

Received:2008-06-10 Revised:2008-09-07 Online:2008-10-25 Published:2008-10-25
Contact: TU Sheng-wen1

摘要/Abstract

摘要： 公路线形设计的一致性水平与交通安全有很大的关联性，然而国内还缺少对双车道公路路段线形质量的评价方法和评价标准。在国内外关于运行速度及运行速度差值研究的基础上，构建了一个评价双车道公路路段线形一致性的综合模型。该模型以运行车速图中第85%位车速与平均车速所围成的相对面积和路段各相邻单元运行车速差值的平均值为参数，融合了整条路段的运行速度及其差值的分布信息。通过灵敏度分析，标定了模型的参数，建立了评价标准和阈值。多个双车道公路路段的事故调查数据表明，模型建立的线形一致性评价指标与交通事故有较好的相关性，初步验证了模型的适用性和有效性。

关键词: 交通安全, 评价模型, 灵敏度分析, 双车道公路, 线形一致性

Abstract: Much research has ascertained the existence of a relationship between alignments consistency level and safety; however, the evaluation methods and criterions for alignments consistency of two-lane highway sections are still rare in China. Based on the research of operating speed and speed differential in the literature, an integrated model is proposed in this paper to evaluate the alignments consistency level of two-lane highway sections. Taking the relative area bounded between the speed profile and the average weighted speed (Ra) and the average speed differential between successive highway elements( ) as parameters, the model synthesizes the distribution information of operating speed and speed differential of the full highway section. Parameters in the model are calibrated through sensitivity analyses, and evaluation criterions and thresholds are therefore developed. A number of accidents investigations indicate that the evaluation criterions presented in the paper have inherence contact with accidents, which proves the adaptability and validity of the model elementarily.

Key words: traffic safety, evaluation model, sensitivity analyses, two-lane highways, alignments consistency

中图分类号:

U491

涂圣文,过秀成,何建明. 双车道公路线形一致性评价模型[J]. 交通运输系统工程与信息, 2008, 8(5): 94-100 .

TU Sheng-wen,GUO Xiu-cheng,HE Jian-ming. Evaluation Model for Alignments Consistency of Two-lane Highways[J]. Journal of Transportation Systems Engineering and Information Technology, 2008, 8(5): 94-100 .

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http://www.tseit.org.cn/CN/Y2008/V8/I5/94

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