The Road Commission is the agency that installs and maintains all traffic signs on county roads. State law requires the Road Commission to follow the requirements of the Michigan Manual of Uniform Traffic Control Devices (MMUTCD). In order to install Regulatory type signs like no parking signs and speed limit signs, the Road Commission must initiate a traffic study of the road in conjunction with the Michigan State Police (MSP). The study includes a review of traffic counts, accident history, speed studies, the character of the area along the road, and any other information available regarding the problems in the area. While the Road Commission is a participant in the traffic study and analysis, the guidelines of the MMUTCD and judgment of the MSP largely determine what speed limit will be adopted. At the conclusion of the study the MSP issues a written Traffic Control Order directing the Road Commission to install specific signs at specific locations on the road, and to record the completed Traffic Control Order at the County Clerk's office.