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The project examined the impacts that nighttime
construction activity has upon the workers and sought
to define work standards to mitigate these factors.
Thirty construction workers on four highway
construction projects, along with a focus group of union
laborers, were interviewed for their opinions and
comments to questions on human factors related to
work on nighttime work zones in the fall of 2000. Field
data from interviews were analyzed for human factors
such as sleep deprivation, eating habits, commuting
difficulties and social/domestic issues.

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