Signing & Striping

The Manual on Uniform Traffic Control Devices outlines the basic principles in which the design and usage of traffic control devices are governed.

Uniformity means treating similar situations in the same way. This simplifies the task of the driver because it aids in instant recognition and understanding. Uniformity aids police, courts and road users by giving everyone the same interpretation. It aids public highway officials through economy in manufacture, installation, maintenance, and administration.

The Manual on Uniform Traffic Control Devices is the publication that sets forth the basic principles, which govern the design and usage of traffic control devices. A National Committee that included state, county, and municipal representation prepared the Manual. The standards in this Manual with certain exceptions apply to all streets and highways regardless of the governmental agency having jurisdiction.

The primary purpose of guide signs

The principal purpose of guide signs is to direct travelers to their destinations by the best route. However, it is not feasible to install signs listing all of the possible destinations that may be reached from the highway. Drivers must be expected to make reasonable preparation for locating their destination and to have information that is readily available on road maps.

How guide sign messages are determined

Simplicity and clarity are necessary because drivers of moving vehicles are unable to read lengthy or complicated messages on signs. For this reason, the number of lines on a sign is kept to a minimum, and should not exceed three. On freeways, high traffic speeds demand that the number of signs be limited to those absolutely essential for the guidance of the motorist. Freeway exits are identified by exit number, the route number or by the name of the intersecting road. Certain additional messages may be provided where justified. In rural areas signs may be installed to direct travelers to services such as roadside rests, gas, food, and lodging.

"Children at Play" signing policy

"Children at Play" signing policy information can be found under Bikes & Pedestrians.