500 Ft

Temporary Traffic Control Distance Plaque, 500 FT When the normal function of the roadway is suspended, Temporary Traffic Control (TTC) planning provides for continuity of the movement of motor vehicle, bicycle, and pedestrian traffic. The primary function of TTC is to provide for the reasonably safe and efficient movement of road users through or around TTC zones while reasonably protecting workers, responders to traffic accidents and equipment.

MUTCD Section 2C.44 Design of Supplemental Plaques A supplemental plaque shall have the same color legend, border, and background as the warning sign with which it is displayed. Supplemental plaques shall be square or rectangular.

Option: A supplemental plaque may be displayed with a warning sign when engineering judgment indicates that road users require additional information beyond that contained in the main message of the warning sign.

Standard: Supplemental plaques shall be used only in combination with warning or regulatory signs. They shall not be mounted alone or displayed alone. If used, a supplemental plaque shall be installed on the same post(s) as the warning sign.