Practice Details
State Agency: Michigan
Practice Provision: Requirements for work or shadow vehicles to have Truck-Mounted Attenuator (TMA)
Description:
Michigan does not require the work vehicle to have a TMA. It does not require truck-mounted attenuators (TMAs) or a shadow vehicle to be used when setting up a lane closure. In its TMA guidelines, Michigan DOT does recommend TMA use for this purpose. Traffic Control Suppliers have brought up that using a TMA may be a hindrance more than a benefit. The nature of the work requires quick maneuvering in and out of traffic. A TMA moves slowly and may cause extended exposure to traffic.
Contact:
Mr. Jeffery K. Grossklaus
Assistant Region Construction Engineer
Michigan Department of Transportation
Metro Region-Construction
18101 W. Nine Mile Rd.
Southfield, Michigan 48075
Phone: (248) 483-5122
Email: grossklausj@michigan.gov
