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Work Zone Safety and Mobility Rule, 23 CFR § 630.1002-1016 (2015).
Manual on Uniform Traffic Control Devices (MUTCD), 23 CFR § 655.603 (2015).
The manual on uniform traffic control devices specifies four work zone areas. One, the advance warning area, where road users are informed of work activities ahead. One or more signs may be used here with or without warning lights. Two, the transition area, where road users are redirected from their normal path. Channeling devices and pavement markings are often used in this area. Three, the activity area, where work activities take place. Workspaces, traffic spaces, and buffer spaces must be clearly defined in this area by channeling devices or temporary barriers. And, four, the terminations area, where road users return to their normal path. This area ends at the last traffic control device such as an "End Road Work" sign. Guidelines and worksheets for all four areas are fully detailed in the MUTCD.
Work Zone Safety
A “work zone” is an area of roadway associated with construction, maintenance, or utility work activities. Work zones are typically marked by signs, channeling devices, pavement markings, and/or work vehicles. Because they are often adjacent to active roadways, work zone workers are exposed to significant risks. Motorists, cyclists, and pedestrians can also face significant risks. Roadways and work activities differ, and weather, traffic volumes, and local environments also vary, so a “one size fits all” approach to work zone safety is not appropriate. However, there are policies, procedures, and guidelines which do apply to all. These are covered in this course.
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