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Work Zone Safety Information Clearinghouse

Library of Resources to Improve Roadway Work Zone Safety for All Roadway Users

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Michigan

Requirements for work or shadow vehicles to have Truck-Mounted Attenuator (TMA)

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, … [Read more...] about Requirements for work or shadow vehicles to have Truck-Mounted Attenuator (TMA)

Type of sheeting specified on signs

In Michigan, fluorescent prismatic sheeting is specified on freeway signs, and engineering grade is used on non-freeway signs.   Engineer Grade sheeting will be eliminated in 2010. … [Read more...] about Type of sheeting specified on signs

Type of sheeting specified on drums

In Michigan, flexible high-intensity sheeting is used on all state trunkline roadways. … [Read more...] about Type of sheeting specified on drums

Solar power/LED lights allowed for arrow boards & changeable message signs

Michigan allows both solar power and LED lights for arrow boards and changeable message signs. … [Read more...] about Solar power/LED lights allowed for arrow boards & changeable message signs

Truck-Mounted Attenuator (TMA) requirement

Michigan requires moving TMAs on pavement marking projects and stationary TMAs on bridge painting. … [Read more...] about Truck-Mounted Attenuator (TMA) requirement

Individual responsible for the design of traffic control plans; Involvement of consultants and associated problems

Michigan DOT personnel, local agency personnel, and consultants are involved in the design of traffic control plans.   Staff with limited traffic control design experience do not always recognize or … [Read more...] about Individual responsible for the design of traffic control plans; Involvement of consultants and associated problems

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