United States Department of Transportation
i
Assess the Effectiveness of Type 2 and Type 3 Safety Vests for Day and Night Use – Phase 2
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2022-01-01
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[PDF-3.73 MB]
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Edition:Final Report
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Abstract:Work zones are an essential component of any state transportation agency’s construction and maintenance operations. As such, agencies apply numerous practices in order to keep their workers safe during construction operations. These strategies typically fall under the following categories: work zone traffic control (e.g., arrow boards, variable message signs, drums, etc.), work zone operational strategies (e.g., reduced speed limits in work zones), and personal protective equipment for highway workers. With regard to the last category, workers are typically provided with varying combinations of helmets, reflective vests, reflective pants, etc. to wear while on the job site depending on the location of the job (e.g., freeway vs. local road) and other conditions (e.g., whether or not nighttime work will take place). The Ohio Department of Transportation (ODOT) recently invested in several more advanced items to improve worker safety (and also traveler safety, by hopefully reducing the number of crashes overall). Specifically, ODOT invested in Type 2 and 3 safety vests, halo lights, and reflectors on the back of dump trucks. These materials were expected to provide the maximum safety effectiveness in terms of conspicuity of workers and work zone equipment. However, while these items separately are known to improve safety, there was concern that together they may not be as effective. This project sought to determine the effectiveness of each piece of safety equipment, collectively and individually, and determine if there are better methods for ensuring the safety of highway workers during both night and daytime operations. In order to accomplish this goal, the research team carried out several major tasks. characteristics.
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