The Michigan DOT has not conducted specific research regarding vehicle warning light effectiveness. Rotating halogen, strobe, and LED vehicle warning lights are allowed on DOT vehicles. The following … [Read more...] about Vehicle warning lights
Michigan
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
Design and oversight of work zone operations
Work zone design is performed by a number of groups including road and bridge designers, traffic and safety personnel in a project or region offices, or consultants or through standardized drawings of … [Read more...] about Design and oversight of work zone operations
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
Flagger training and certification requirements
From Michigan Department of Transportation Work Zone Safety and Mobility Manual: "1.06.03 Traffic Regulator Training Individuals involved in traffic regulating operations for work zones must be … [Read more...] about Flagger training and certification requirements
Temporary Movable (“Zipper”) Barrier systems in work zones
Michigan has used the movable barrier wall on 4 or 5 projects in work zones. The state has used these on freeways where traffic is switched from one side of the road to the other. The zipper wall is … [Read more...] about Temporary Movable (“Zipper”) Barrier systems in work zones