United States Department of Transportation
i
Construction Work Zone Safety: Spatio-Temporal Analysis of Construction Work Zone Crashes
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2024-04-01
[PDF-2.92 MB]
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Edition:Final. October 2022 to Feb 2024
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Abstract:This report presents a comprehensive analysis of work zone safety considering multiple factors, including crash severity, speed analysis, countermeasure analysis, and state-of-the-practice in DOTs. It encompasses a broad literature review, drawing from DOT reports, NCHRP publications, MUTCD guidelines, and academic research, to explore a range of traffic control approaches within work zones. The study also includes findings from a survey distributed to all DOTs, with 24 recorded responses across the nation, providing valuable perspectives on safety and satisfaction in work zones. In the context of specific safety measures, the report delves into the role of longitudinal rumble strips. While generally effective in reducing roadway departure crashes, their impact within work zones appears less significant. This observation prompts a call for further investigation and possible adjustments to their use in these areas. The report culminates in a comprehensive evaluation of work zone safety countermeasures and their implications on driver behavior, particularly speed. By integrating survey results from state DOTs and reviewing the efficacy of various safety interventions, the report offers substantive recommendations aimed at enhancing safety in construction work zones. In conclusion, this report provides a comprehensive analysis of work zone safety countermeasures, survey findings from state DOTs, and insights into the impact of work zones on drivers' speed, offering valuable recommendations for improving safety within construction work zones.
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