Evaluation of safety benefits of automatic crash information notification systems on freeways

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• 作者：E. Jeong (1)
  C. Oh (1)
  J. Lee (2)
  
• 关键词：Effectiveness evaluation ; Automatic crash information notification system (ACINS) ; Crash response time ; Injury prediction model
• 刊名：International Journal of Automotive Technology
• 出版年：2014
• 出版时间：April 2014
• 年：2014
• 卷：15
• 期：3
• 页码：495-503
• 全文大小：3,128 KB
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• 作者单位：E. Jeong (1)
  C. Oh (1)
  J. Lee (2)
  
  1. Department of Transportation and Logistics Engineering, Hanyang University, Gyeonggi, 426-791, Korea
  2. Korea Automobile Testing & Research Institute, Korea Transportation Safety Authority, Gyeonggi, 445-871, Korea
  
• ISSN：1976-3832

文摘

The automatic crash information notification system (ACINS) is an effective technology to enhance the potential for saving crash victims by reducing the crash response time (CRT) of emergency medical services. Shorter CRT results in a greater potential to save the lives and to alleviate the severity of injuries for crash victims. To fully operate the ACINS, reliable assessments of the safety benefits would be needed for justifying public investment. This study proposed a methodology for quantifying the effectiveness of the ACINS and applied the methodology to the Korean freeway system. The proposed methodology consists of three steps. The first step is to develop a statistical model for predicting injury severity of crash victims using ordered logistic regression. The second step is to estimate the amount of reduced CRT by applying ACINS. The effectiveness of the ACINS, which are defined as the number of reduced fatalities and severe injuries, were evaluated with the consideration of the market penetration rate (MPR) in third step. It has been found that approximately 9.4-5.4% of fatalities can be reduced with 100% MPR when the proposed methodology is applied to 2011 freeway crash data. The outcomes of this study support decision making for public investments and for establishing relevant traffic safety policies.