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The
Manual on Uniform Traffic Control Devices (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 markings (see lane), and traffic light are designed, installed, and used. These specifications include the shapes, colors, and fonts used in road markings and signs. In the United States, all traffic control devices must generally conform to these standards. The manual is used by state and local agencies as well as private construction firms to ensure that the traffic control devices they use conform to the national standard. While some state agencies have developed their own set of standards, these must be in substantial conformance with the MUTCD.
History
At the start of the 20th century—the early days of the rural highway—each road was promoted and maintained by American Automobile Association of private individuals, who generated revenue through club membership and increased business along cross-country routes. However, each highway had its own set of signage, usually designed to promote the highway rather than to assist in the direction and safety of travelers. In fact, conflicts between these automobile clubs frequently led to multiple sets of signs—sometimes as many as eleven—being erected on the same highway.
Government action to begin resolving the wide variety of signage that had cropped up did not occur until the early 1920s, when groups from Indiana, Minnesota, and Wisconsin began surveying the existing road signs in order to develop a standard. They reported their findings to the Mississippi Valley Association of Highway Departments, which adopted the report's suggestions for the shapes to be used for road signs. These suggestions included the familiar circular railroad crossing sign and octagonal stop sign.
In 1927, the American Association of State Highway and Transportation Officials, or AASHO, published the
Manual and Specifications for the Manufacture, Display, and Erection of U.S. Standard Road Markers and Signs to set standards for traffic control devices used on rural roads. This was followed by the
Manual on Street Traffic Signs, Signals, and Markings, which set similar standards for urban settings. While these manuals set similar standards for each environment, the use of two manuals was decided to be unwieldy, and so the AASHO began work in 1932 with the National Conference on Street and Highway Safety, or NCSHS, to develop a uniform standard for all settings. This standard was the MUTCD.
The MUTCD was first released in 1935, and set standards for both road signs and pavement markings. Since that time, eight more editions of the manual have been published with numerous minor updates occurring between, each taking into consideration changes in usage and size of the nation's system of roads as well as improvements in technology.
In 1966, Congress passed the Highway Safety Act, P.L. 89-564, 72 Stat. 885 (1966), which is now codified at 23 U.S.C. § 401
et seq. It required all states to create a highway safety program by
December 31,
1968, and to adhere to uniform standards promulgated by the U.S. Department of Transportation as a condition of receiving federal highway-aid funds.Edward C. Fisher, Vehicle Traffic Law (Evanston, IL: Traffic Institute, Northwestern University, 1961) (1967 supp.): 11. The penalty for noncompliance was a 10% reduction in funding. In turn, taking advantage of broad rulemaking powers granted in 23 U.S.C. § 402, the Department simply adopted the entire MUTCD by reference at 23 CFR § 655.603. Thus, what was formerly a quasi-official project became an official one. States are allowed to supplement the MUTCD but must remain in "substantial conformance" with the national MUTCD and adopt changes within two years after they are adopted by FHWA.
The National Committee on Uniform Traffic Control Devices (NCUTCD) advises FHWA on additions, revisions, or changes to the MUTCD.
Other jurisdictions
The
Transportation Association of Canada (TAC) publishes a
Manual of Uniform Traffic Control Devices for use by Canadian jurisdictions. Although it serves a similar role to the FHWA MUTCD, it has been independently developed and has a number of key differences with its American counterpart, most notably the inclusion of bilingual (English/French) signage for jurisdictions such as New Brunswick with significant
English language and
French language population, and a much heavier reliance on symbols rather than text legends.
The
Ministry of Transportation of Ontario (MTO) also has historically used its own MUTCD which bore many similarities to the TAC MUTCD. However, as of approximately 2000 they have been developing the
Ontario Traffic Manual (OTM), a series of smaller volumes each covering different aspects of traffic control (e.g., regulatory signs, warning signs, sign design principles, traffic signals, etc.).
References
External links
- U.S. FHWA Manual on Uniform Traffic Control Devices—the entire manual is available here as a set of color PDF files
- MUTCD History (Texas Transportation Institute)
- US traffic signs
- Some free and pretty accurate FHWA Series fonts
- National Committee on Uniform Traffic Control Devices (NCUTCD)
- mycrazyhobby.com | a collection of street signs and traffic lights
The
Manual on Uniform Traffic Control Devices (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 markings (see lane), and traffic light are designed, installed, and used. These specifications include the shapes, colors, and fonts used in road markings and signs. In the United States, all traffic control devices must generally conform to these standards. The manual is used by state and local agencies as well as private construction firms to ensure that the traffic control devices they use conform to the national standard. While some state agencies have developed their own set of standards, these must be in substantial conformance with the MUTCD.
History
At the start of the 20th century—the early days of the rural
highway—each road was promoted and maintained by
American Automobile Association of private individuals, who generated revenue through club membership and increased business along cross-country routes. However, each highway had its own set of signage, usually designed to promote the highway rather than to assist in the direction and safety of travelers. In fact, conflicts between these automobile clubs frequently led to multiple sets of signs—sometimes as many as eleven—being erected on the same highway.
Government action to begin resolving the wide variety of signage that had cropped up did not occur until the early 1920s, when groups from Indiana, Minnesota, and Wisconsin began surveying the existing road signs in order to develop a standard. They reported their findings to the Mississippi Valley Association of Highway Departments, which adopted the report's suggestions for the shapes to be used for road signs. These suggestions included the familiar circular railroad crossing sign and octagonal stop sign.
In 1927, the
American Association of State Highway and Transportation Officials, or AASHO, published the
Manual and Specifications for the Manufacture, Display, and Erection of U.S. Standard Road Markers and Signs to set standards for traffic control devices used on rural roads. This was followed by the
Manual on Street Traffic Signs, Signals, and Markings, which set similar standards for urban settings. While these manuals set similar standards for each environment, the use of two manuals was decided to be unwieldy, and so the AASHO began work in 1932 with the National Conference on Street and Highway Safety, or NCSHS, to develop a uniform standard for all settings. This standard was the MUTCD.
The MUTCD was first released in 1935, and set standards for both road signs and pavement markings. Since that time, eight more editions of the manual have been published with numerous minor updates occurring between, each taking into consideration changes in usage and size of the nation's system of roads as well as improvements in technology.
In 1966, Congress passed the Highway Safety Act, P.L. 89-564, 72 Stat. 885 (1966), which is now codified at 23 U.S.C. § 401
et seq. It required all states to create a highway safety program by December 31, 1968, and to adhere to uniform standards promulgated by the U.S. Department of Transportation as a condition of receiving federal highway-aid funds.Edward C. Fisher, Vehicle Traffic Law (Evanston, IL: Traffic Institute, Northwestern University, 1961) (1967 supp.): 11. The penalty for noncompliance was a 10% reduction in funding. In turn, taking advantage of broad rulemaking powers granted in 23 U.S.C. § 402, the Department simply adopted the entire MUTCD by reference at 23 CFR § 655.603. Thus, what was formerly a quasi-official project became an official one. States are allowed to supplement the MUTCD but must remain in "substantial conformance" with the national MUTCD and adopt changes within two years after they are adopted by FHWA.
The
National Committee on Uniform Traffic Control Devices (NCUTCD) advises FHWA on additions, revisions, or changes to the MUTCD.
Other jurisdictions
The
Transportation Association of Canada (TAC) publishes a
Manual of Uniform Traffic Control Devices for use by Canadian jurisdictions. Although it serves a similar role to the FHWA MUTCD, it has been independently developed and has a number of key differences with its American counterpart, most notably the inclusion of bilingual (English/French) signage for jurisdictions such as New Brunswick with significant
English language and
French language population, and a much heavier reliance on symbols rather than text legends.
The
Ministry of Transportation of Ontario (MTO) also has historically used its own MUTCD which bore many similarities to the TAC MUTCD. However, as of approximately 2000 they have been developing the
Ontario Traffic Manual (OTM), a series of smaller volumes each covering different aspects of traffic control (e.g., regulatory signs, warning signs, sign design principles, traffic signals, etc.).
References
External links
- U.S. FHWA Manual on Uniform Traffic Control Devices—the entire manual is available here as a set of color PDF files
- MUTCD History (Texas Transportation Institute)
- US traffic signs
- Some free and pretty accurate FHWA Series fonts
- National Committee on Uniform Traffic Control Devices (NCUTCD)
- mycrazyhobby.com | a collection of street signs and traffic lights