|Michigan Manual on Uniform Traffic Control Devices|
This excerpt from the Michigan Manual on Uniform Traffic Control Devices references Part 6, which pertains to construction and maintenance.
Part 6, Temporary Traffic Control
The primary function of TTC is to provide for the reasonably safe and effective movement of road users through or around TTC zones while reasonably protecting road users, workers, responders to traffic incidents and equipment.
No one set of TTC devices can satisfy all conditions for a given project or incident. At the same time, defining details that would be adequate to cover all applications is not practical. Instead, Part 6 displays typical applications that depict common applications of TTC devices. The TTC selected for each situation depends on type of highway, road user conditions, duration of operation, physical constraints and the nearness of the work space or incident management activity to road users.