将道路网络的不一致性模式纳入碰撞模型中

IF 12.5 1区 工程技术 Q1 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH
R.N. Shilpa, B.K. Bhavathrathan
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引用次数: 0

摘要

本文将几何设计不一致性分析的范围从走廊尺度扩展到整个网络的视角,探讨不一致性的空间模式对碰撞事故的影响。我们定义了区段级不一致的空间模式,重点关注其分布、连续性、频率、密度和规模。我们设计了一种新方法,根据区域内相邻路段的三胞胎来测量不一致性-连续性和不一致性-频率。通过微观-宏观综合模型,我们揭示了不一致性的可扩展性影响,这种影响在区段层面上仍然显著,但在区域层面上会受到空间模式的调节。综合模型的表现始终优于非综合模型,从而强调了这种综合方法的重要性。这项研究强调,不一致性罕见的区域显示出更高的碰撞次数,而不一致性一致的区域则显示出更低的碰撞率,从而揭示了道路条件对驾驶员行为的影响。最后,我们还提出了一种新工具--频率-超平面上的脆弱性等值线,用于绘制区域的相对安全地图。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Incorporating inconsistency patterns on road networks into crash modeling

This paper expands the scope of geometric design inconsistency analysis from corridor scales to network-wide perspectives, exploring the impact of inconsistencies’ spatial-patterns on crashes, which remains largely under-explored. We define spatial-patterns of segment-level inconsistencies, focusing on their spread, contiguity, frequency, density, and magnitude. We devise a new method to measure inconsistency-contiguity and inconsistency-frequency based on adjacent segment-triplets within regions. Through micro–macro integrated models, we reveal the scalable influence of inconsistency which remain significant at the segment-level but gets modulated by spatial-patterns at the regional-level. The integrated models consistently outperform their non-integrated counterparts, emphasizing the importance of this integrated approach. This study highlights that regions with rare inconsistency occurrences demonstrate higher crash counts, while regions with uniform inconsistency occurrences exhibit lower crash rates, unveiling insights into the road conditions’ impact on driver behavior. Finally, we also propose a novel tool - vulnerability contours on frequency-hyperplane to map regions’ relative safety.

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来源期刊
CiteScore
22.10
自引率
34.10%
发文量
35
审稿时长
24 days
期刊介绍: Analytic Methods in Accident Research is a journal that publishes articles related to the development and application of advanced statistical and econometric methods in studying vehicle crashes and other accidents. The journal aims to demonstrate how these innovative approaches can provide new insights into the factors influencing the occurrence and severity of accidents, thereby offering guidance for implementing appropriate preventive measures. While the journal primarily focuses on the analytic approach, it also accepts articles covering various aspects of transportation safety (such as road, pedestrian, air, rail, and water safety), construction safety, and other areas where human behavior, machine failures, or system failures lead to property damage or bodily harm.
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