An empirical analysis of how asleep/fatigued driving-injury severities have changed over time

IF 2.4 3区 工程技术 Q3 TRANSPORTATION
Mouyid Islam, F. Mannering
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引用次数: 12

Abstract

Abstract Asleep/fatigued driving has proven to be a serious and persistent highway-safety problem. This study investigates aspects of this problem by studying the temporal changes in driver-injury severities in single-vehicle crashes that involve asleep/fatigued driving. To do this, random parameters logit models with unobserved heterogeneity in means and variances were estimated to compare injury-severities in asleep/fatigued crashes in Florida in 2014 and 2019. The estimated models are based on available police-reported crash data that include a wide variety of factors related to the spatial, temporal, and weather characteristics as well as vehicle characteristics, traffic information, harmful events, roadway attributes, and driver characteristics. The model estimates show that there were many statistically significant factors determining driver-injury severities resulting from asleep/fatigued driving, and that the effect of these factors on driver-injury severities has changed significantly over time, with many explanatory variables producing temporally shifting marginal effects. While asleep/fatigued driving crashes remain a serious safety concern, the empirical findings indicate (using model prediction simulations) that the resulting injury severities in crashes involving asleep/fatigued driving have declined between 2014 and 2019, likely reflecting the effectiveness of safety campaigns and ongoing improvements in vehicle safety technologies and highway safety features.
睡眠/疲劳驾驶损伤严重程度随时间变化的实证分析
睡眠/疲劳驾驶已被证明是一个严重和持久的公路安全问题。本研究通过研究涉及睡眠/疲劳驾驶的单车碰撞中驾驶员损伤严重程度的时间变化来调查这一问题的各个方面。为了做到这一点,估计随机参数logit模型在均值和方差上具有未观察到的异质性,以比较2014年和2019年佛罗里达州睡眠/疲劳碰撞的伤害严重程度。估计模型是基于现有的警方报告的碰撞数据,这些数据包括与空间、时间、天气特征以及车辆特征、交通信息、有害事件、道路属性和驾驶员特征相关的各种因素。模型估计表明,有许多统计上显著的因素决定了睡眠/疲劳驾驶导致的驾驶员伤害严重程度,并且这些因素对驾驶员伤害严重程度的影响随着时间的推移发生了显著变化,许多解释变量产生了暂时转移的边际效应。虽然睡眠/疲劳驾驶碰撞仍然是一个严重的安全问题,但实证研究结果表明(使用模型预测模拟),在2014年至2019年期间,涉及睡眠/疲劳驾驶的碰撞造成的伤害严重程度有所下降,这可能反映了安全运动的有效性以及车辆安全技术和公路安全功能的持续改进。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
6.00
自引率
15.40%
发文量
38
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