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Investigation of Rural Roadway Departures
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2022-10-01
[PDF-1.54 MB]
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Edition:Final Report January 2022 – February 2023
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Abstract:Roadway fatalities are a major priority in the transportation sector. UDOT has noted that fatalities increased in 2020 with the leading cause, by a substantial margin, being rural roadway departures. Knowledge about the specific characteristics of rural roadway departure crashes can help UDOT to develop proper mitigation strategies. This research was performed with the goal of investigating temporal and spatial characteristics associated with rural roadway departure fatalities and other crashes to identify action steps to reduce roadway departure fatalities. Study into potential methods of reducing crashes was performed to answer the following questions: Where do these crashes occur? When are roadway departures most common? What are the primary contributing factors? The identified answers to these questions will help develop methods of working through public outreach, education, engineering, and design to reduce rural roadway departure crashes and provide reference for future research and development. Through this research, patterns relating to the occurrence of these roadway departures that can be used to mitigate problems in the future were identified and highlighted. Key factors include high-risk behaviors such as drowsy driving, DUI and wrong-way driving, barriers, shoulder width, etc.
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