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The Manual on Uniform Traffic Control Devices for Streets and Highways (usually referred to as the Manual on Uniform Traffic Control Devices, abbreviated MUTCD) is a document issued by the Federal Highway Administration (FHWA) of the United States Department of Transportation (USDOT) to specify the standards by which traffic signs, road surface markings, and signals are designed, installed ...
The California Manual on Uniform Traffic Control Devices (abbreviated CA MUTCD) is the standard for traffic signs, road surface markings, and traffic signals in the U.S. state of California. It is developed by the California Department of Transportation (Caltrans) Division of Safety Programs "in substantial conformance to" the national Manual ...
Traffic signs or road signs are signs erected at the side of or above roads to give instructions or provide information to road users. The earliest signs were simple wooden or stone milestones . Later, signs with directional arms were introduced, for example the fingerposts in the United Kingdom and their wooden counterparts in Saxony .
Signs including Stop, Yield, No Turns, No Trucks, No Parking, No Stopping, Minimum Speed, Right Turn Only, Do Not Enter, Weight Limit, and Speed Limit are considered regulatory signs. Some have special shapes, such as the octagon for the Stop sign and the crossbuck for railroad crossings.
The very first standardised road signs in Australia used yellow circular signs as regulatory signs, a feature now preserved in "pedestrian crossing" and "safety zone" signs. [ 2 ] In 1964, Australia adopted a variation of the American Manual on Uniform Traffic Control Devices (MUTCD) road sign design, which is a modified version of the 1954 ...
Road signs used by countries in the Americasare significantly influenced by the Manual on Uniform Traffic Control Devices(MUTCD), first released in 1935, reflecting the influence of the United States throughout the region.[1] Other non-American countries using road signs similar to the MUTCD include Australia, Indonesia, Ireland, Japan ...
Local traffic road signs usually employ black text on white. Exceptions are the Czech Republic (yellow-on-black), Finland (white-on-black), Austria and Spain (white-on-green), as well as Denmark, Iceland and Poland (blue-on-white). Tourist sighting signs usually employ white on some shade of brown.
Exit numbers in the United States. Exit numbers in the United States are assigned to freeway junctions, and are usually numbered as exits from freeways. Exit numbers generally are found above the destinations and route number (s) at the exit, as well as a sign in the gore. Exit numbers typically reset at political borders such as state lines.