Manual on Uniform Traffic Control Devices

The Manual on Uniform Traffic Control Devices (MUTCD) is a nationwide guide that sets standards for traffic signs, signals, and road markings. Its purpose is to ensure consistency and clarity in traffic control devices across the country, helping drivers, pedestrians, and cyclists understand and follow road rules safely. The MUTCD provides detailed guidelines on where and how to use different signs and signals, reducing confusion and improving traffic flow and safety. It is used by transportation agencies and planners to design roads and traffic control systems that are understandable and effective for everyone.