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Home > Roadway Departure Safety > Policy/Guidance > Roadside Hardware Policy and Guidance > NCHRP Report 350: Devices in Work Zones

NCHRP Report 350: Devices in Work Zones - Category 4

Trailer Mounted Devices

• Changeable message signs, flashing arrow panels, portable traffic signals, work area lighting,
• Crash testing currently not required
• Should be shielded where possible
• Should be removed when not needed
• Must be delineated

Trailer Mounted Devices

For Additional Information:

Nick Artimovich
FHWA - HSA-10
400 Seventh Street, SW
Washington, DC 20590
nick.artimovich@fhwa.dot.gov

Program Contact

Mary McDonough
Roadway Departure Team Leader
mary.mcdonough@dot.gov
202-366-2175

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