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Purpose of the MUTCD

01

SupportThe purpose of the MUTCD is to establish uniform national criteria for the use of traffic control devices that meet the needs and expectancy of road users on all streets, highways, pedestrian and bicycle facilities, and site roadways open to public travel.

02

SupportThis purpose is achieved through the following objectives:

  1. A.Promote safety, inclusion, and mobility for all users of the road network;
  2. B.Promote efficiency through creating national uniformity in the meaning and appearance of traffic control devices;
  3. C.Promote national consistency in the use, installation, and operation of traffic control devices; and
  4. D.Provide basic principles for traffic engineers to use in making decisions regarding the use, installation, operation, maintenance, and removal of traffic control devices.
03

SupportUniformity of the meaning of traffic control devices is vital to their effectiveness. Uniformity means treating similar situations in a similar way. Uniformity of devices simplifies the task of the road user because it aids in recognition and understanding, thereby reducing perception/reaction time. Uniformity assists road users, law enforcement officers, and traffic courts by giving everyone the same interpretation. Uniformity assists public highway officials through efficiency in manufacture, installation, maintenance, and administration.

04

SupportThe use of uniform traffic control devices also requires uniform and appropriate application.

05

SupportThe applicability of the MUTCD to facilities open to public travel is independent of the type of ownership or jurisdiction (public or private) and the source of funding (Federal, State, local, or private).

06

SupportThis Manual presumes the user of the MUTCD has sufficient working knowledge, professional training and experience, and education in the principles of traffic engineering. Other resources can be consulted to understand the basis for decisions that are made in which engineering study or judgment will be applied.