基于线形风险指数的高速公路线形风险评估方法研究

发布时间：2018-01-11 19:14

本文关键词：基于线形风险指数的高速公路线形风险评估方法研究　出处：《公路交通科技》2017年06期 　论文类型：期刊论文

【摘要】：为使高速公路线形风险评估最终有一个量化的综合评估结果,并克服现有线形风险评估方法的缺陷,在线形风险评估指标研究的基础上,将运行速度协调性线形评估和驾驶员心理指标线形评估相结合。评估过程中综合考虑驾驶员因素及线形本身的影响,规避两方法各自的局限性,提出了一种量化的高速公路线形风险评估综合指标——线形风险指数,实现了高速公路线形风险评估的多元考虑。以湖南某高速公路为依托,通过现场试验对3名驾驶员心率变异指标及实时车速进行采集,采用线形风险指数对试验段线形分段进行了风险评估。通过将2009年至2012年试验段交通事故情况与评估结果进行对比分析,发现试验段线形风险指数与路段事故数变化规律基本一致,验证了线形风险指数进行高速公路线形风险评估的可行性与可靠性。
[Abstract]:In order to make the highway linear risk assessment finally have a quantitative comprehensive evaluation results, and overcome the shortcomings of existing linear risk assessment methods, on the basis of linear risk assessment index research. The alignment evaluation of running speed coordination and the linear evaluation of driver's psychological index are combined. In the process of evaluation driver factors and the influence of alignment itself are considered comprehensively to avoid the limitations of the two methods. In this paper, a quantitative linear risk assessment index for freeway alignment is proposed, which realizes the multi-consideration of highway linear risk assessment. It is based on a highway in Hunan province. The indexes of heart rate variability and real time speed of 3 drivers were collected by field test. The linear risk index is used to evaluate the risk of the linear segment of the test section, and the traffic accident situation of the test section from 2009 to 2012 is compared with the results of the evaluation. It is found that the linear risk index of the test section is basically consistent with the variation law of the number of road accidents, which verifies the feasibility and reliability of the linear risk index for highway linear risk assessment.
【作者单位】：中铁隧道集团有限公司杭州公司;
【分类号】：U412.3
【正文快照】： 0引言随着我国公路事业的快速发展和汽车保有量的提高,高速公路凸显的交通安全问题日益严峻。国内外研究表明,不良道路条件是导致道路交通事故的主要因素,引发事故比例达到89%;另一方面,驾驶员是70%交通事故的直接或间接原因[1-2]。为减少事故的发生频率和降低事故的严重程度,

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