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Analytical Method to Estimate Accident Duration Using Archived ITS Speed Profile and Its Statistical Analysis

机译:利用ITS速度曲线存档估算事故持续时间的分析方法及其统计分析。

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Since accident duration is defined as the time difference between when accident occurredand when the response vehicles depart the accident scene, understanding the relation betweencharacteristics of an accident and its duration is crucial for the efficient response of accidents andthe reduction of traffic congestion caused by accidents. However, the previous studies have beenfocused on modeling accident duration rather than its observation. If considering a fallacy due tothe difficulty of observation on accident scene from its occurrence to clearance, the collection ofthe duration data is crucial as well. Thus the first objective of this study is to develop ananalytical method to estimate duration caused by freeway traffic accident based on the archivedtravel speed profile from the ubiquitous ITS technologies. Additionally, a statistical analysis foraccident duration is presented based on the observation result from the case study involvingapproximately 6,200 accidents that occurred on freeways in Orange County, California, in 2001.The analysis results were consistent with the theoretical expectation and the prior studies.Overall, the presented method will contribute to less observation error and burden for accidentduration.
机译:由于事故持续时间定义为事故发生之间的时间差 当响应车辆离开事故现场时,了解两者之间的关系 事故的特征及其持续时间对于事故的有效响应和预防至关重要 减少因交通事故造成的交通拥堵。但是,以前的研究已经 侧重于对事故持续时间进行建模,而不是对其进行观察。如果考虑由于以下原因的谬误 从事故现场到清除事故现场的观察难度, 持续时间数据也很关键。因此,本研究的首要目标是开发一种 存档的高速公路交通事故持续时间分析方法 来自无所不在的ITS技术的行驶速度曲线。此外,针对 根据案例研究的观察结果提出了事故持续时间 2001年,加利福尼亚州奥兰治县的高速公路上发生了约6,200起事故。 分析结果与理论预期和先前的研究相吻合。 总体而言,所提出的方法将有助于减少观察误差和事故负担 期间。

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