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... 1 The objective of NCHRP Project 20-05 Topic 49-04 was to synthesize the current state of practice on the selection and setup of very short duration work zones (VSDWZs) where the traffic control setup may take longer than the actual work activities.
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... 2 Very Short Duration Work Zone Safety for Maintenance and Other Activities itself. New technologies that agencies are using to reduce worker exposure during quick maintenance operations include • Automated debris removal (vacuums, scoops, rakes, and plows)

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