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<p>This report presents the results of a research project aimed at providing insights into the human factors associated with nighttime work zones on the New Jersey Department of Transportation construction and maintenance projects. It examines the impacts that nighttime construction activity has upon the workers and seeks to define work standards to mitigate these factors. These impacts are assessed through field surveys, focus group and interviews that included: highway engineers, construction workers (laborers), field supervisors, and contractors.</p>

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