Evaluation of Highway Safety Improvement Projects and Countermeasures [Project Summary]
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2019-08-31
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Abstract:The Highway Safety Improvement Program (HSIP) is a core federal-aid, state-administered program in which each state is required to develop and establish planning, implementation, and evaluation processes. The goal of evaluation activities is to determine if highway safety improvements are achieving the desired results and the investments are worthwhile. The expectation is to continuously feed and improve the planning and implementation components of the HSIP with findings and data from the evaluation process. The general guideline is to identify actionable and measurable goals (e.g., reduce the number of fatalities and serious injuries) and perform evaluations using robust data-driven methods that account for traffic volume fluctuations, regression to-the-mean (RTM) effects, and roadway design and other characteristics.
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