United States Department of Transportation
i
Traffic Incident Management and Reducing Secondary Crashes in Arizona
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2018-11-01
[PDF-3.27 MB]
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Abstract:Arizona’s current traffic crash data collection system including data for secondary crashes positioned the state to make significant advancement toward understanding the nature and impacts of those crashes. This study concentrated on identification of the benefits of effective Traffic Incident Management (TIM) practices on secondary crashes in terms of improved safety for motorists and first responders. The study begins the process of developing an assessment model that examines a well-defined situation and a known threat, and estimates the relative risk. Based on the findings, recommendations were made to establish several action items for statewide TIM implementation and relationship building. The study resulted in identification of opportunities to collect additional data that will help better understand the time and spatial relationships of secondary crashes, linked to the time and spatial relationships of TIM tactics engaged in primary crashes. This has the potential for enhancing the recommended risk model that considers a number of factors and necessary data that would become available.
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