Uniform Traffic Control Devices

Road signs and signals

Signs, signals, and pavement markings are both traffic control devices and the language that communicates to drivers along the nation's roadways. While there may be minor differences from state to state, you will be able to recognize and understand these traffic control devices wherever you drive across the country. Check out specific details with DriversEd.com's courses: Arizona, California, Colorado, Florida, Georgia, Indiana, Minnesota, Nebraska, Nevada, Oklahoma, Pennsylvania, Texas, Virginia, Utah, and more.

manual on uniform traffic control devices

The Manual on Uniform Traffic Control Devices, or MUTCD, defines the standards used nationwide to install and maintain traffic control devices on all American streets and highways.

All states are required to adopt the National Manual or have a state supplement that conforms to the National Manual. Consult your state's Drivers Handbook for details.