Effects of emergency medical services times on traffic injury severity: A random effects ordered probit approach
Effects of emergency medical services times on traffic injury severity: A random effects ordered probit approach
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DOI：
10.1080/15389588.2018.1468889
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发表时间：
2018-01-01
影响因子：
2
通讯作者：
Wang, Ling
中科院分区：
文献类型：
--
作者：
Lee, Jaeyoung;Abdel-Aty, Mohamed;Wang, Ling
目的：紧急医疗服务（EMS）在坠机后通过提供急救治疗和运送到医疗设施来减少死亡人数的努力中发挥着至关重要的作用。本研究旨在分析事故报告和EMS到达致命交通事故所需的时间，并探讨EMS时间对交通伤害severity.Methods的影响：EMS报告所需的时间，到达，并运送到医院的位置类型和道路功能分类使用2016年死亡分析报告系统（法尔斯）的数据计算。结果：事故报告时间平均为5.38min，报告时间到现场平均为10.52min，现场时间到医院平均为34.72min。在农村地区的常规道路上，平均碰撞报告和报告现场到达间隔最长，而在城市地区的常规道路上最短。传统农村地区的平均现场-医院间隔最长，城市地区的高速公路/高速公路上最短。随机效应有序概率单位模型表明，延长报告现场到达和现场医院的间隔时间导致更严重的伤害。结果还提出，碰撞类型，违反，年龄，位置，照明条件，酒精/药物参与有显着影响伤害severity.Conclusions：从这项研究的主要结果表明，EMS时间不同，根据城市/农村的位置和道路功能分类，报告现场到达和现场医院的间隔有显着影响伤害的严重程度沿着与各种因素。预计本研究的结果可用于制定有效和实用的战略计划，以尽量减少EMS报告，到达时间和运输到医院，从而降低交通伤害的严重程度。
Objective: Emergency medical services (EMS) play a vital role in the postcrash effort to reduce fatalities by providing first aid treatment and transportation to medical facilities. This study aims to analyze the time required for crash reporting and EMS arrival in fatal traffic crashes and to explore the effects of EMS time on the traffic injury severity.Methods: The time required for EMS reporting, arrival, and transport to hospital was calculated by location type and roadway functional classification using 2016 Fatality Analysis Reporting System (FARS) data. Subsequently, an ordered probit model was developed to identify factors contributing to injury severity considering EMS time.Results: The average time for the crash-reporting duration is 5.38min, the reporting-scene arrival interval is 10.52min, and the scene-hospital interval is 34.72min. The average crash reporting and reporting-scene arrival intervals were the longest on conventional roads in rural areas and the shortest on conventional roads in urban areas. The average scene-hospital interval was longest in conventional rural areas and the shortest on freeways/expressways in urban areas. The developed random effects ordered probit model shows that prolonged reporting-scene arrival and scene-hospital intervals result in more severe injuries. The result also presents that crash type, violation, age, location, lighting condition, and alcohol/drug involvement have significant effects on injury severity.Conclusions: The key findings from this study indicate that EMS times differ according to urban/rural location and road functional classification and that reporting-scene arrival and scene-hospital intervals have significant effects on injury severity along with various factors. It is expected that the findings from this study can be used to develop effective and practical strategic plans to minimize EMS reporting, arrival time, and transport to hospital and therefore decrease the traffic injury severity.