MUTCD

The MUTCD, or Manual on Uniform Traffic Control Devices, is a comprehensive guide used in the United States that outlines standardized signs, signals, and markings for roadways. Its purpose is to ensure consistency across all transportation systems, helping drivers understand traffic rules and navigate safely. The MUTCD covers everything from stop signs to road work signs, and its guidelines are adopted by federal, state, and local agencies to promote uniformity, clarity, and safety on roads nationwide.