Which manual provides guidelines for traffic control devices?

The Manual on Uniform Traffic Control Devices (MUTCD) is the authoritative source for guidelines on traffic control devices in the United States. It provides standardized specifications for the design, placement, and maintenance of traffic control devices, such as signs, signals, and markings, ensuring consistency and safety across various jurisdictions. The MUTCD develops uniformity, which helps road users understand traffic regulations and enhance road safety.

This guideline is crucial for traffic control supervisors, as it influences how traffic control measures are implemented at construction sites, road work zones, and throughout the general roadway network. Understanding and adhering to the MUTCD is essential for effective traffic management and to prevent confusion and accidents on the road. Other manuals might address specific aspects of traffic or signage but do not serve the comprehensive purpose and regulatory framework that the MUTCD provides.