410:
MUTCD allowed state highway departments to use optional explanatory word plaques with symbol signs and to continue using the previous standard word message signs in certain cases. Robert Conner, the chief of the traffic control systems division of the
Federal Highway Administration during the 1970s, believed that symbol signs were "usually more effective than words in situations where reaction time and comprehension are important." Conner was active in the Joint Committee and also represented the United States at international meetings on road traffic safety. However, several American traffic safety experts were concerned that American drivers would not understand the Vienna Convention's unintuitive symbols, which is why the MUTCD allowed for explanatory word plaques. Most of the repainting to the 1971 standard was done between 1971 and 1974, with a deadline of 1978 for the changeover of both the markings and signage.
443:
situations where drivers were about to run out of road and needed to merge into another lane immediately. American highway safety experts ridiculed it as the "Rain Ahead" sign. Many
American motorists were bewildered by the Vienna Convention's symbol sign with two children on it, requiring it to be supplemented with a "School Xing" plaque. (The American "School Xing" symbol was later redesigned to depict an adult crossing together with a child.) The 1971 MUTCD's preference for a rapid transition to symbols over words quietly disappeared in the 1978 MUTCD. The 2000 and 2003 MUTCDs each eliminated a symbol sign that had long been intended to replace a word message sign: "Pavement Ends" (in 2000) and "Narrow Bridge" (in 2003).
29:
428:
729:
482:. It also adds painted green bike lanes, bike boxes, and bike-specific traffic lights. Rectangular Rapid-Flashing Beacons (RRFBs) were also added to the MUTCD; a pedestrian beacon for uncontrolled intersections consisting of two rectangular lights, side-by-side, which alternate flashing, under a yellow diamond with a walking person on it, above an arrow pointing out the crosswalk. RRFBs were previously on interim approval by the FHWA since March 20, 2018. Transportation safety advocates criticized the changes as not going far enough to deal with a substantial spike in pedestrian fatalities, especially guidance setting speed limits
447:
2814:
527:
720:
240:, then known as the Institute of Traffic Engineers. The single most controversial and heavily debated issue during the early years of the MUTCD was the color of center lines on roads. The 1948 version of the MUTCD settled the debate in favor of white, and also changed the standard color of stop signs from yellow to red. However, the 1948 MUTCD also allowed for two major exceptions to white center lines: yellow was recommended but not mandatory for double center lines on multi-lane highways and for center lines in no-passing zones.
554:
386:(a)(1), also enacted in 1966, authorizes federal agencies to incorporate by reference technical standards published elsewhere, which means the agency may merely cite the standard and need not republish its entire text as part of the appropriate regulation.) 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.
419:
390:
217:, which set similar standards for urban settings, but also added specific guidance on traffic signals, pavement markings, and safety zones. Although the two manuals were quite similar, both organizations immediately recognized that the existence of two slightly different manuals was unnecessarily awkward, and in 1931 AASHO and NCSHS formed a Joint Committee to develop a uniform standard for both urban streets and rural roads. This standard was the MUTCD.
221:
160:, all traffic control devices must legally 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 sets of standards, including their own MUTCDs, these must substantially conform to the federal MUTCD.
751:(alerting drivers of unexpected or hazardous conditions) tend to be more verbose than their Vienna Convention counterparts. On the other hand, MUTCD guide signs (directing or informing road users of their location or of destinations) tend to be less verbose, since they are optimized for reading at high speeds on freeways and expressways.
176:. The first edition of the MUTCD was published in 1935, 33 years before the Vienna Convention was signed in 1968. The MUTCD differs significantly from the European-influenced Vienna Convention, and an attempt to adopt several of the Vienna Convention's standards during the 1970s led to confusion among many US drivers.
317:, then known as the American Municipal Association. In 1961, the MUTCD was again revised to make yellow center lines mandatory for the two exceptions where they had previously been recommended. The 1961 edition was the first edition to provide for uniform signs and barricades to direct traffic around
360:
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. The penalty for non-compliance was a 10% reduction in funding. In turn, taking
192:
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
458:
containing a proposal for a new edition of the MUTCD, and published the draft content of this new edition on the MUTCD website for public review and comment. Comments were accepted until the end of July 2008. The new edition was published in 2009. Revisions to the 2009 edition were then published in
405:
by requiring all center lines dividing opposing traffic on two-way roads to be always painted in yellow (instead of white, which was to always demarcate lanes moving in the same direction), and also required that all highway guide signs (not just those on
Interstate Highways) contain white text on a
243:
In 1949, the United
Nations Conference on Road and Motor Transport launched a research project to develop a worldwide uniform scheme for highway signs. In 1951, the UN conducted experiments in the U.S. to compare the effectiveness of national traffic sign standards from around the world. Signs from
494:
Proposed additions and revisions to the MUTCD are recommended to FHWA by the
National Committee on Uniform Traffic Control Devices (NCUTCD), a private, non-profit organization. The NCUTCD also recommends interpretations of the MUTCD to other agencies that use the MUTCD, such as state departments of
473:
On May 15, 2023, despite provisions in the IIJA, the FHWA failed to release a new update to the MUTCD. The FHWA cited the volume of comments as a reason for the delay. The 11th edition of the MUTCD was released on
December 19, 2023. The 11th edition allows painted red bus lanes, rules allowing more
292:
reciprocated by installing MUTCD signs on their roads. In the U.S., the experiments attracted unexpected controversy and curious onlookers who posed a hazard. By
September 1951, the experts working on the project were in favor of the American proposals for stop signs (at the time, black "STOP" text
1059:
and are based on both the MUTCD and the Vienna
Convention on Road Signs and Signals. Chile signed the Vienna Convention on Road Signs and Signals on November 8, 1968, and ratified it on December 27, 1974, making it the only country in the Americas to ratify this convention. In Chile, both types of
296:
In 1953, after cooperating with the UN conference's initial experiments, the United States declined to sign or ratify the UN's then-proposed protocol for a worldwide system of uniform road signs. There were two major reasons behind this decision. First, most U.S. roads and streets were (and still
196:
Government action to begin resolving the wide variety of signage that had cropped up did not occur until the late 1910s and early 1920s when groups from
Indiana, Minnesota, and Wisconsin began surveying existing road signs in order to develop road signage standards. They reported their findings to
409:
Another major change, inspired by the Vienna Convention, was that the 1971 MUTCD expressed a preference for a transition to adoption of symbols on signs in lieu of words "as rapidly as public acceptance and other considerations permit." During what was then expected to be a transition period, the
1237:
similar to those used in other nations but much of it resembles road signage systems used in South American countries with certain differences, such as using a blue circle instead of a red-bordered white circle to indicate mandatory actions. As a result, Thailand road signage generally have many
744:
The United States is among the majority of countries around the world that have not ratified the Vienna Convention on Road Signs and Signals (based primarily on European signage traditions), and the FHWA MUTCD differs significantly from the Vienna Convention. Apart from the 1971 effort to adopt
305:
in 1956), and the novel problems presented by such new high-speed highways required rapid innovations in road signing and marking "that would definitely be impaired by adherence to any international code". Despite the Americans' withdrawal from the research project, the experiments eventually
442:
The U.S. adoption of several Vienna Convention-inspired symbol signs during the 1970s was a failure. For example, the lane drop symbol sign was criticized as baffling to U.S. drivers—who saw a "big milk bottle"—and therefore quite dangerous, since by definition it was supposed to be used in
737:
Under the MUTCD, the standard speed limit sign (left) used only in the United States includes the words "speed limit" above the number (which is in mph), while the standard one under the Vienna Convention (right) only requires the number which is used in most countries (which is mostly in
1104:
Road signs in Guyana generally follow the same design as those in the United States and are based on the MUTCD with the exception that some signs are reversed since the country drives on the left. However, most of current signs found in Guyana, are non-compliant with MUTCD standards.
745:
several Vienna Convention-inspired symbol signs (as explained above), achieving worldwide uniformity in traffic control devices was never a priority for AASHTO because the number of motorists driving regularly on multiple continents was relatively small during the 20th century.
804:
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 US counterpart, most notably the inclusion of bilingual (English/French) signage for jurisdictions such as
1204:
Australian warning signs have a yellow diamond with a black legend, following America's practice. Australia remains the only country that still has the text-based version of the low-clearance signage. (Most other countries now use vertical arrows in between the clearance
232:
was published in 1935. Since that time, subsequent 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.
2846:
2283:
577:(SDDC) have all adopted supplements to the MUTCD. Ten states have adopted their own editions of the MUTCD "in substantial conformance to" an edition of the national MUTCD, annotated throughout with state-specific modifications and clarifications. The
1181:
A number of Asian and Oceanian countries use road signages based on the MUTCD. The most notable is Australia, which has a road signage system that is directly based on the MUTCD. Others use a mixture of MUTCD and international standards.
197:
the Mississippi Valley Association of Highway Departments, which adopted their suggestions in 1922 for the shapes to be used for road signs. These suggestions included the familiar circular railroad crossing sign and octagonal stop sign.
758:
like the Vienna Convention does, a separate category for those signs like "Right Turn Only" and "Keep Right" that tell traffic what it must do instead of what it must not do. Instead, the MUTCD primarily classifies them with the other
169:. This manual defines the specific dimensions, colors, and fonts of each sign and road marking. The National Committee on Uniform Traffic Control Devices (NCUTCD) advises the FHWA on additions, revisions, and changes to the MUTCD.
212:
of the 1920s, the term "road marker" was sometimes used to describe traffic control devices which modern speakers would now call "signs." In 1930, the National Conference on Street and Highway Safety (NCSHS) published the
3076:
653:
3064:
3052:
3028:
641:
629:
605:
3040:
617:
495:
transportation. NCUTCD develops public and professional awareness of the principles of safe traffic control devices and practices and provides a forum for qualified individuals to exchange professional information.
3115:
689:
3127:
701:
2853:
293:
on a yellow octagon), "cross road", "left or right curve", and "intersection", but were still struggling to reach consensus on symbols for "narrow road", "bumpy or uneven surface", and "steep hill".
1208:
Australian temporary warning signs are rectangular, following the United Kingdom practice, but they differ from the British temporary warning signs by having a yellow, or an orange background instead.
436:
The draw bridge warning sign (left) is one of the several signs under the MUTCD that remain text-only, while its equivalent under the Vienna Convention (right) displays a symbol of an open draw bridge
1200:, and it serves as a similar role to the FHWA MUTCD. As a result, road signs in Australia closely follow those used in U.S., but some sign designs closely follow the ones used in the United Kingdom.
2292:
2900:
1866:
511:
797:
557:
An example of state-by-state variations: California (foreground) paints a black line to help drivers see a double yellow line demarcating opposing traffic, while Nevada (background) does not
2717:
964:, which use European-style road signs, including triangular warning signs with a red border and a white background as in Europe. Of all the countries in South America, only four countries—
466:
containing a proposal for an 11th edition of the MUTCD, publishing the draft content of this new edition online for public review and comment until March 15, 2021. The adoption of the
2134:
201:
4172:
3845:
2730:"Manual Venezolano de Dispositivos Uniformes para el Control del Tránsito (MVDUCT) – Gaceta Oficial N° 39.590 del 10-01-2011 – Instituto Nacional de Transporte Terrestre (INTT)"
2970:
2940:
2111:
836:(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.).
2990:
2839:
2296:
1706:
1060:
mandatory signs are used: European-style signs with white symbols on a blue background and a white border, signs with black symbols on a white background and a red border.
766:
The MUTCD has become widely influential outside the United States; for example, the use of yellow stripes to divide opposing traffic has been widely adopted throughout the
2960:
2945:
2554:
4187:
1262:
3089:
3011:
2985:
665:
2678:
3071:
2995:
2975:
3083:
3059:
3047:
3023:
2980:
2950:
2935:
2925:
2920:
2910:
2895:
2729:
2873:
This template lists only US states that have adopted the 2009 edition of MUTCD with their own supplements and states that have adopted their own versions of MUTCD
1962:
3911:
3035:
2890:
1153:. As a result, road signs in Peru are similar in design to those used in the United States on one side and in neighbouring Chile and Colombia on the other side.
879:). The signs share many similarities with those used in the United States and Canada. Like Canada but unlike the United States, Mexico has a heavier reliance on
208:
to set standards for traffic control devices used on rural roads. Despite the title, this manual did not have any guidance on pavement markings. In the archaic
2955:
2930:
2885:
1023:. Thus, road signs used in Bolivia generally have many similarities to road signs used in the United States, Central America, Colombia and neighboring Chile.
832:(MTO) also has historically used its own MUTCD which bore many similarities to the TAC MUTCDC. However, as of approximately 2000, MTO has been developing the
3110:
2905:
474:
crosswalks and traffic signals, new rules for determining speed limits, signage for shoulders that are used part-time as traffic lanes, and new signage for
3122:
3098:
3016:
2915:
2120:
593:
574:
2718:
https://repositorio.pucp.edu.pe/index/bitstream/handle/123456789/173103/elementos%20de%20la%20teor%C3%ADa%20del%20tr%C3%A1fico%20vehicular.pdf?sequence=1
2605:
4208:
1536:
1211:
Australian regulatory signs are similar to those used in America, except (at least since 1974) the speed limit signs which bear the red circle legend.
2097:
1842:
1803:
2039:
1748:
904:, a Central American equivalent to the US MUTCD. Of the SICA countries, only Costa Rica has signed the Vienna Convention on Road Signs and Signals.
4155:
2257:
1937:
1138:
980:—have signed the Vienna Convention on Road Signs and Signals. Chile is also the only country in South America that has ratified this convention.
1804:
American Association of State Highway and Transportation Officials; National Joint Committee on Traffic Control Devices (2003). "Introduction".
3103:
677:
1987:
RIN 2125-AF85 National Standards for Traffic Control Devices; the Manual on Uniform Traffic Control Devices for Streets and Highways; Revision
470:(IIJA) in November 2021 also directed the USDOT to update the MUTCD by no later than May 15, 2023, and at least every four years thereafter.
325:
856:
4182:
1257:
2353:
4129:
3770:
3700:
3297:
1245:
371:
173:
2050:
1789:
American Association of State Highway Officials; National Joint Committee on Traffic Control Devices (1978). "Section 2A-13, Symbols".
929:
244:
six countries were placed along the road for test subjects to gauge their legibility at a distance. The test strips were located along
141:
2429:
1867:"National Standards for Traffic Control Devices; the Manual on Uniform Traffic Control Devices for Streets and Highways; Revision"
1788:
1680:
1651:
1603:
1576:
1339:
American Association of State Highway Officials: A Story of the Beginning, Purposes, Growth, Activities, and Achievements of AASHO
498:
The NCUTCD is supported by twenty-one sponsoring organizations, including transportation and engineering industry groups (such as
3335:
3171:
2472:
588:
309:
In 1960, the National Joint Committee on Uniform Traffic Control Devices was again reorganized to include representatives of the
1963:"FHWA Releases New Traffic Control Device Manual with Updates to Improve Safety for Pedestrians, Bicyclists, and All Road Users"
1843:
American Association of State Highway and Transportation Officials; National Joint Committee on Traffic Control Devices (2012).
1631:
3984:
3562:
648:
467:
193:
these automobile clubs frequently led to multiple sets of signs—sometimes as many as eleven—being erected on the same highway.
2706:
163:
The MUTCD defines the content and placement of traffic signs, while design specifications are detailed in a companion volume,
3979:
829:
660:
636:
624:
600:
237:
2517:
3615:
612:
2317:
3952:
895:
570:
503:
2137:. Scott Air Force Base, Illinois: Military Surface Deployment and Distribution Command Transportation Engineering Agency
1367:
Hawkins, H. Gene; Parham, Angelia H.; Womack, Katie N. (2002). "Appendix A: Evolution of U.S. Pavement Marking System".
684:
362:
350:
2831:
4177:
4124:
4116:
3582:
1481:
696:
672:
475:
379:
2583:
3785:
3635:
2260:[Official Mexican Standard NOM-034-SCT2/SEDATU-2022, Signage and Traffic Devices for Streets and Highways]
2113:
Department of Defense Supplement to the National Manual on Uniform Traffic Control Devices for Streets and Highways
1096:
Ecuador signed the Vienna Convention on Road Signs and Signals on November 8, 1968 but has yet to fully ratify it.
1016:
957:
886:
Mexico signed the Vienna Convention on Road Signs and Signals on November 8, 1968, but has yet to fully ratify it.
446:
310:
3833:
3140:
2460:
2216:(2006 consolidated ed.). Geneva, Switzerland: United Nations Economic Commission for Europe. pp. 41, 91
1267:
578:
515:
342:
28:
2407:
3947:
137:
66:
45:
2529:
2258:"NORMA Oficial Mexicana NOM-034-SCT2/SEDATU-2022, Señalización y dispositivos viales para calles y carreteras"
3790:
3725:
3720:
3517:
2630:
2026:
1652:
American Association of State Highway Officials; National Joint Committee on Traffic Control Devices (1971).
1604:
American Association of State Highway Officials; National Joint Committee on Traffic Control Devices (1971).
1577:
American Association of State Highway Officials; National Joint Committee on Traffic Control Devices (1971).
206:
Manual and Specifications for the Manufacture, Display, and Erection of U.S. Standard Road Markers and Signs
2156:
2000:"Interim Approval 21 – Rectangular Rapid-Flashing Beacons at Crosswalks - Interim Approvals Issued by FHWA"
3164:
1500:
265:
2555:"Reglamento Técnico Ecuatoriano. RTE INEN 004-1:2011. Señalización vial. Parte 1: Señalización Vertical"
912:
In Belize, road signs generally follow MUTCD standards. However, there are road signs unique to Belize.
4065:
3557:
3522:
3384:
2378:
1999:
329:
253:
2776:
2182:
3883:
3838:
3532:
2965:
1537:"U.N. Nearer Accord on Traffic Signs: Standard Markers of U.S. May Serve as a Basis For World System"
397:
The 1971 edition of the MUTCD included several significant standards. The MUTCD imposed a consistent
314:
302:
298:
261:
2208:
3904:
3715:
3600:
3567:
3542:
3487:
3482:
3420:
3415:
3349:
3315:
1436:
2493:
1566:(1967 supp. ed.). Evanston, Illinois: Traffic Institute, Northwestern University. p. 11.
1524:. Newport News, Virginia. Associated Press. March 30, 1951. p. 13 – via Newspapers.com.
920:
Road signs in South America and Caribbean are generally based on the MUTCD, with the exception of
3899:
3878:
3705:
3537:
3527:
3462:
3435:
3374:
3325:
3238:
2656:
1474:
1395:
Waters, Charles R.; Treble, Gilbert W. (July 1951). "Tests of Highway Signs for United Nations".
1191:
989:
507:
257:
189:
518:. Each sponsoring organization promotes members to serve as voting delegates within the NCUTCD.
3926:
3740:
3620:
3547:
3512:
3502:
3497:
3425:
3389:
3369:
3157:
1986:
1829:
1520:
1415:
1368:
1228:
1069:
868:
1844:
1578:
4055:
3931:
3823:
3780:
3745:
3685:
3680:
3675:
3665:
3660:
3650:
3645:
3640:
3625:
3610:
3605:
3595:
3590:
3572:
3452:
3410:
3379:
3267:
3249:
2088:
1653:
1605:
1080:
949:
483:
2825:
1845:"Change List for Revision Numbers 1 and 2, Dated May 2012, to the 2009 Edition of the MUTCD"
1724:
Hebert, Ray (January 30, 1972). "New Traffic Signs Bloom as California Goes International".
4095:
4025:
4020:
3916:
3828:
3813:
3775:
3765:
3755:
3750:
3735:
3730:
3695:
3670:
3655:
3630:
3552:
3472:
3447:
3394:
3364:
3214:
3194:
2707:
https://cdn.www.gob.pe/uploads/document/file/1014949/Manual-Senalizacion-Turistica-Peru.pdf
1504:. Massillon, Ohio. Associated Press. March 27, 1951. p. 12 – via Newspapers.com.
1032:
845:
791:
402:
245:
149:
8:
4050:
3921:
3795:
3760:
3710:
3690:
3507:
3477:
3457:
3440:
3430:
3209:
2518:
https://dspace.utpl.edu.ec/bitstream/123456789/11467/1/Carpio%20Reyes%20Henrry%20Omar.pdf
2285:
Manual de Señalización y Dispositivos para el Control del Tránsito en Calles y Carreteras
1050:
921:
2751:
1805:
873:
Manual de Señalización y Dispositivos para el Control de Tránsito en Calles y Carreteras
728:
374:
4010:
3818:
3492:
3467:
2861:
2813:
1196:
For road signs in Australia, this is covered by AS 1742 which is unofficially known as
767:
479:
450:
The left guide sign is from the 2003 MUTCD, and the right sign is from the 2009 MUTCD.
427:
2688:(in Spanish). Lima: Ministerio de Transportes y Comunicaciones del Perú. May 31, 2016
1774:
Hazlett, Bill (March 23, 1972). "Some Confusing: Wordless Traffic Signs Popping Up".
526:
289:
1341:. Washington, DC: American Association of State Highway Officials. pp. 129–138.
4090:
4060:
3330:
2679:"Manual de Dispositivos de Control del Tránsito Automotor para Calles y Carreteras"
2449:
2062:
1456:
1238:
similarities to road signs used in the United States and Latin American countries.
1118:
814:
562:
463:
455:
338:
209:
2381:
Manual Centroamericano de Dispositivos Uniformes para el Control del Transito 2014
1215:
The typeface used for Australian road signs is the AS 1744 font which is based on
4085:
3229:
3224:
2040:
Press statement: Newly updated MUTCD doesn’t go far enough to protect pedestrians
1135:
Manual de Dispositivos de Control del Tránsito Automotor para Calles y Carreteras
1093:. Signs are, in most ways, similar in design to those used in the United States.
937:
818:
760:
553:
366:
354:
1915:"Manual on Uniform Traffic Control Devices for Streets and Highways: What's New"
383:
297:
are) under state jurisdiction. Second, the United States was developing modern
4080:
4040:
4005:
3320:
3310:
3287:
3259:
3199:
1892:
1216:
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standard which is based on the United States' MUTCD (FHWA), Central America's
755:
249:
2461:
http://www.der.sp.gov.br/WebSite/Arquivos/manuais/MANUAL_SINALIZACAO_VOL_1.pdf
561:
Eighteen states have adopted the national MUTCD as is. Twenty-two states, the
393:
Warning signs introduced in the 1971 edition, combining both symbols and words
4202:
4070:
4045:
3974:
1288:
1234:
1166:
925:
901:
Manual Centroamericano de Dispositivos Uniformes para el Control del Transito
806:
157:
153:
4015:
1515:
1495:
1451:
1431:
1410:
1370:
NCHRP Report 484: Feasibility Study for an All-White Pavement Marking System
3305:
3276:
3244:
3180:
1989:, III. Summary of the Major Provisions of the Regulatory Action in Question
748:
462:
On December 14, 2020, FHWA published a notice of proposed amendment in the
389:
145:
3234:
2606:"The Infrastructure Ministry has missed the point on the East Coast road"
953:
775:
566:
454:
On January 2, 2008, FHWA published a Notice of Proposed Amendment in the
269:
2657:"MANUAL DE CARRETERAS DEL PARAGUAY – Asociación Paraguaya de Carreteras"
1163:
Manual Venezolano de Dispositivos Uniformes para el Control del Tránsito
3282:
2564:(in Spanish). Instituto Ecuatoriano de Normalización. 2011. p. 204
1914:
1117:
standard developed by the Ministry of Public Works and Communications (
398:
346:
2027:"The rules of the road are changing, but not fast enough for everyone"
1419:. United Press. March 27, 1951. p. 11 – via Newspapers.com.
1337:
Johnson, A.E. (1965). Johnson, A.E. (ed.). "A Story of Road Signing".
1091:
Reglamento Técnico Ecuatoriano. RTE INEN 004-1:2011. Señalización vial
877:
Manual of Signage and Traffic Control Devices for Streets and Highways
825:
rather than text legends and metric measurements instead of imperial.
782:
and some Asian countries use many road signs influenced by the MUTCD.
306:
resulted in the Vienna Convention on Road Signs and Signals of 1968.
4035:
3272:
3219:
3204:
1965:(Press release). U.S. Department of Transportation. December 19, 2023
977:
771:
584:
The following state-specific MUTCD editions are currently in effect:
318:
16:
National traffic control manual of the Federal Highway Administration
2051:
Feds, Advocates Talk About What’s In The New MUTCD (And What Isn’t)!
1145:(MUTCD) developed by the Federal Highway Administration, Colombia's
172:
The United States is among the countries that have not ratified the
4030:
1731:
1241:
961:
933:
220:
22:
Manual on Uniform Traffic Control Devices for Streets and Highways
2187:
Manual on Uniform Traffic Control Devices for Streets and Highways
2183:"Figure 2B-3. Speed Limit and Photo Enforcement Signs and Plaques"
1807:
Manual on Uniform Traffic Control Devices for Streets and Highways
1791:
Manual on Uniform Traffic Control Devices for Streets and Highways
1658:
Manual on Uniform Traffic Control Devices for Streets and Highways
1610:
Manual on Uniform Traffic Control Devices for Streets and Highways
1583:
Manual on Uniform Traffic Control Devices for Streets and Highways
230:
Manual on Uniform Traffic Control Devices for Streets and Highways
123:
Manual on Uniform Traffic Control Devices for Streets and Highways
1376:. Washington, DC: Transportation Research Board. pp. A-1–A-7
1000:
973:
941:
810:
779:
369:, the Department simply adopted the entire MUTCD by reference at
185:
3149:
2530:"Manual Basico de Senalizacion Vial | PDF | Semáforo | Peatonal"
4100:
1793:. Washington, DC: Federal Highway Administration. p. 2A-6.
965:
880:
851:
822:
499:
281:
273:
105:
4075:
4000:
2807:
1585:. Washington, DC: Federal Highway Administration. p. 181
1170:
969:
945:
719:
418:
285:
277:
184:
At the start of the 20th century—the early days of the rural
2235:
1893:"Status of Rulemaking for the Eleventh Edition of the MUTCD"
1660:. Washington, DC: Federal Highway Administration. p. 16
1612:. Washington, DC: Federal Highway Administration. p. 84
4188:
Comparison of traffic signs in English-speaking territories
2063:"MUTCDs & Traffic Control Devices Information by State"
1263:
Comparison of traffic signs in English-speaking territories
2318:"Road and Traffic Signs in Mexico - What You Need to Know"
2090:
Manual de Rotulación para las Vías Públicas en Puerto Rico
1606:"Section 2D-3, Color, Reflectorization, and Illumination"
236:
In 1942, the Joint Committee was expanded to include the
224:
Cover of the first edition of the MUTCD published in 1935
2238:. Transportation Association of Canada. December 6, 2019
1440:. Richmond, Virginia. p. 1-B – via Newspapers.com.
1938:"Rules of the Road Get a Long-Awaited Update in the US"
1460:. March 27, 1951. p. 9 – via Newspapers.com.
1198:
Manual of Uniform Traffic Control Devices for Australia
2819:
2189:. Washington, DC: Federal Highway Administration. 2009
1982:
1980:
1141:
of Peru. This standard is based on the United States'
2820:
National Committee on Uniform Traffic Control Devices
484:
based on the 85th percentile of actual driving speeds
215:
Manual on Street Traffic Signs, Signals, and Markings
42:
National Committee on Uniform Traffic Control Devices
2121:
Military Surface Deployment and Distribution Command
802:
Manual of Uniform Traffic Control Devices for Canada
594:
California Manual on Uniform Traffic Control Devices
575:
Military Surface Deployment and Distribution Command
2494:"manual de señalizacion | PDF | Semáforo | Autobús"
1977:
1366:
654:
Minnesota Manual on Uniform Traffic Control Devices
894:For road signs in Central American countries, the
642:Michigan Manual on Uniform Traffic Control Devices
630:Maryland Manual on Uniform Traffic Control Devices
606:Delaware Manual on Uniform Traffic Control Devices
542: Adopted national MUTCD with state supplement
330:
2098:Puerto Rico Highways and Transportation Authority
1681:"Signs of Progress: Road Symbols Guiding Traffic"
618:Indiana Manual on Uniform Traffic Control Devices
4200:
4156:Traffic Signs Regulations and General Directions
2584:"INVITATION TO TENDER Ref: GYSBI_ITT 102/102022"
2450:http://www.cetsp.com.br/media/1268593/nt-274.pdf
2430:"Manuales Técnicos para el Diseño de Carreteras"
2157:"List of Approved Requests for Interim Approval"
2006:. Federal Highway Administration. March 20, 2018
1847:. Washington, DC: Federal Highway Administration
1810:. Washington, DC: Federal Highway Administration
1707:"Robert Conner, Ex-FHA Official, Dies of Cancer"
1647:
1645:
1632:"Symbols to Replace Words on U.S. Traffic Signs"
1362:
1360:
1358:
1356:
1354:
1352:
1350:
1348:
361:advantage of broad rulemaking powers granted in
301:at the time (culminating in the creation of the
2862:Road signs in the US states by the adoption of
2069:. Federal Highway Administration. July 14, 2020
1895:. Federal Highway Administration. March 2, 2022
1496:"Foreign Road Sign Test Arouses Some Criticism"
690:Texas Manual on Uniform Traffic Control Devices
202:American Association of State Highway Officials
2163:. Federal Highway Administration. May 15, 2020
1699:
1484:. 1951. pp. 4–5 – via Google Books.
1469:
1467:
1248:, but has yet to fully ratify the convention.
1009:Manuales Técnicos para el Diseño de Carreteras
1005:Manuales Técnicos para el Diseño de Carreteras
915:
702:Utah Manual on Uniform Traffic Control Devices
678:Ohio Manual of Uniform Traffic Control Devices
3165:
2847:
1836:
1797:
1642:
1345:
1123:Ministerio de Obras Públicas y Comunicaciones
899:
530:Map showing state adoption of the 2009 MUTCD:
4183:Comparison of MUTCD-influenced traffic signs
1597:
1570:
1394:
1258:Comparison of MUTCD-influenced traffic signs
1113:Road signs in Paraguay are regulated in the
763:that inform drivers of traffic regulations.
2210:Vienna Convention on Road Signs and Signals
1464:
1246:Vienna Convention on Road Signs and Signals
174:Vienna Convention on Road Signs and Signals
3172:
3158:
2854:
2840:
2812:
1832:. Regulations.gov. docket FHWA-2007-28977.
1742:
1740:
1535:Hoffman, Michael L. (September 23, 1951).
1332:
1330:
1328:
1326:
1287:Hawkins, H. Gene Jr. (December 15, 2023).
857:Secretaría de Comunicaciones y Transportes
188:—each road was promoted and maintained by
156:are designed, installed, and used. In the
144:(USDOT) to specify the standards by which
142:United States Department of Transportation
4209:Manual on Uniform Traffic Control Devices
4149:Manual on Uniform Traffic Control Devices
2161:Manual on Uniform Traffic Control Devices
2067:Manual on Uniform Traffic Control Devices
2024:
1935:
1929:
1324:
1322:
1320:
1318:
1316:
1314:
1312:
1310:
1308:
1306:
1161:Road signs in Venezuela are regulated in
1143:Manual on Uniform Traffic Control Devices
581:has also adopted the MUTCD in some form.
129:Manual on Uniform Traffic Control Devices
2879:Adopted MUTCD with the state supplements
1233:Road signs in Thailand are standardized
1139:Ministry of Transport and Communications
1133:Road signs in Peru are regulated by the
552:
525:
445:
388:
219:
3336:Direction, position, or indication sign
2250:
1936:Woodhouse, Skylar (December 19, 2023).
1773:
1767:
1746:
1737:
1678:
1672:
1534:
1528:
1429:
1411:"Ohioans tell Europe to keep its signs"
1336:
1286:
1085:Road signs in Ecuador are regulated in
589:California Department of Transportation
4201:
3985:Traffic light control and coordination
2752:"AS 1742.1:2021 | Standards Australia"
2236:"Transportation Association of Canada"
1747:Conniff, James C.G. (March 30, 1975).
1723:
1717:
1561:
1303:
1037:Road signs in Brazil are regulated by
709:
649:Minnesota Department of Transportation
468:Infrastructure Investment and Jobs Act
3980:Variations in traffic light operation
3153:
2835:
2603:
2371:
2348:
2346:
2344:
2342:
2340:
2338:
2096:(in Spanish). San Juan, Puerto Rico:
1055:Road signs in Chile are regulated by
830:Ministry of Transportation of Ontario
661:Missouri Department of Transportation
637:Michigan Department of Transportation
625:Maryland State Highway Administration
601:Delaware Department of Transportation
512:Advocates for Highway and Auto Safety
506:), safety organizations (such as the
238:Institute of Transportation Engineers
2631:"Better traffic management required"
2473:"MANUAL DE SEÑALIZACIÓN DE TRÁNSITO"
798:Transportation Association of Canada
613:Indiana Department of Transportation
3953:Traffic signs in post-Soviet states
1475:"U.N. Tests New Road Signs in U.S."
1176:
896:Central American Integration System
571:United States Department of Defense
166:Standard Highway Signs and Markings
13:
2354:"United Nations Treaty Collection"
2335:
2119:. Scott Air Force Base, Illinois:
1679:Lindsey, Robert (April 23, 1972).
1430:Barnett, David (August 21, 1951).
1289:"The Evolution of MUTCD: Prologue"
1151:Manual de Señalización de Tránsito
1087:Manual Básico de Señalización Vial
1057:Manual de Señalización de Tránsito
889:
821:population, a heavier reliance on
685:Texas Department of Transportation
548: Adopted state-specific MUTCD
476:electric vehicle charging stations
335:Tooltip Public Law (United States)
14:
4220:
4178:Comparison of European road signs
3179:
2799:
2781:International Drivers Association
2408:"Belize's Unique and Funny Signs"
1482:United States Information Service
1432:"Foreign Highway Signs Catch Eye"
1115:Manual de Carreteras del Paraguay
697:Utah Department of Transportation
673:Ohio Department of Transportation
2264:(in Spanish). September 19, 2023
1917:. Federal Highway Administration
1516:"Road Sign Test for UN Given Up"
1291:. Federal Highway Administration
1039:Manual de Sinalização Rodoviária
958:Saint Vincent and the Grenadines
727:
718:
426:
417:
311:National Association of Counties
27:
3141:Road signs in the United States
2769:
2744:
2722:
2711:
2700:
2671:
2649:
2623:
2597:
2576:
2547:
2522:
2511:
2486:
2465:
2454:
2443:
2422:
2400:
2310:
2276:
2228:
2201:
2175:
2149:
2127:
2104:
2081:
2055:
2044:
2033:
2025:Joel Rose (December 31, 2023).
2018:
1992:
1955:
1907:
1885:
1859:
1822:
1782:
1624:
1555:
1508:
1268:Road signs in the United States
865:Dirección General de Carreteras
863:Directorate-General for Roads (
579:Guam Department of Public Works
516:American Automobile Association
272:, and other roads in New York.
4173:Comparison of Asian road signs
1830:"Public Comments on new MUTCD"
1488:
1444:
1423:
1403:
1388:
1280:
796:For road signs in Canada, the
489:
138:Federal Highway Administration
136:) is a document issued by the
67:Federal Highway Administration
46:Federal Highway Administration
1:
2291:(in Spanish) (1st ed.).
1452:"U.N. Highway Signs Get Test"
1273:
930:overseas department of France
324:In 1966, Congress passed the
3005:Adopted state-specific MUTCD
2604:KNews (September 30, 2018).
1579:"Section 3B-1, Center Lines"
1185:
1156:
1041:and are based on the MUTCD.
983:
536: Adopted national MUTCD
321:and maintenance operations.
228:The original edition of the
126:(usually referred to as the
7:
2732:(in Spanish). July 16, 2019
1638:. May 31, 1970. p. 58.
1478:Air Bulletin: World Affairs
1251:
1244:is a signatory to the 1968
1222:
1147:Manual de Señalización Vial
1108:
1063:
1013:Manual de Señalización Vial
916:South America and Caribbean
867:), and uniformized under a
521:
349:, which is now codified at
266:Minnesota State Highway 101
80:; 89 years ago
10:
4225:
4066:Polish road signs typeface
1562:Fisher, Edward C. (1961).
1226:
1189:
1078:
1074:
1067:
1048:
1030:
994:
987:
843:
789:
299:controlled-access highways
179:
4165:
4140:
4110:International conventions
4109:
3993:
3967:
3940:
3892:
3871:
3806:
3581:
3403:
3357:
3348:
3296:
3258:
3187:
3138:
3004:
2878:
2871:
1099:
1026:
907:
898:(SICA) publishes its own
839:
785:
315:National League of Cities
303:Interstate Highway System
100:
92:
72:
62:
54:
35:
26:
3791:Gaelic-speaking Scotland
3316:Prohibitory traffic sign
3298:Vienna Convention Groups
3090:Engineering Policy Guide
2777:"Thailand Driving Guide"
2562:www.obraspublicas.gob.ec
1654:"Section 2A-13, Symbols"
1437:The Richmond News Leader
1044:
800:(TAC) publishes its own
666:Engineering Policy Guide
3326:Special regulation sign
1192:Road signs in Australia
1128:
990:Road signs in Argentina
508:National Safety Council
258:Virginia State Route 53
3846:Central America (SICA)
3616:Bosnia and Herzegovina
2756:store.standards.org.au
1416:Mansfield News Journal
1229:Road signs in Thailand
1122:
1070:Road signs in Colombia
900:
834:Ontario Traffic Manual
558:
550:
451:
394:
225:
204:(AASHO) published the
4056:NPS Rawlinson Roadway
3283:Give Way / Yield sign
3268:Priority to the right
3250:Variable-message sign
3215:Driver location signs
1749:"Danger: Signs Ahead"
1165:and are based on the
1081:Road signs in Ecuador
1017:Ministry of Transport
1003:are regulated by the
950:Saint Kitts and Nevis
556:
529:
449:
403:road surface markings
392:
223:
200:In January 1927, the
150:road surface markings
3563:United Arab Emirates
3195:Advisory speed limit
2901:District of Columbia
2637:. September 18, 2018
2322:www.rhinocarhire.com
1033:Road signs in Brazil
1021:Manual de Carreteras
846:Road signs in Mexico
792:Road signs in Canada
756:mandatory sign group
563:District of Columbia
246:Ohio State Route 104
2482:(in Spanish). 2020.
2410:. December 27, 2011
2388:(in Spanish). SIECA
1873:. December 14, 2020
1713:. December 1, 1984.
1711:The Washington Post
1564:Vehicle Traffic Law
1397:Traffic Engineering
1137:, developed by the
1051:Road signs in Chile
1011:(SICA), Colombia's
922:Antigua and Barbuda
883:than text legends.
710:Other jurisdictions
480:autonomous vehicles
406:green background.
23:
4141:National standards
2828:by H. Gene Hawkins
1753:The New York Times
1685:The New York Times
1636:The New York Times
1541:The New York Times
768:Western Hemisphere
754:The MUTCD lacks a
669:(EPG), section 900
559:
551:
452:
395:
326:Highway Safety Act
226:
21:
4196:
4195:
3963:
3962:
3344:
3343:
3147:
3146:
1776:Los Angeles Times
1726:Los Angeles Times
871:standard and the
854:are regulated by
813:with significant
319:road construction
290:Southern Rhodesia
118:
117:
93:Publication place
4216:
4091:Trafikkalfabetet
3941:Former countries
3355:
3354:
3331:Information sign
3256:
3255:
3174:
3167:
3160:
3151:
3150:
2856:
2849:
2842:
2833:
2832:
2822:(NCUTCD) website
2816:
2811:
2810:
2808:Official website
2793:
2792:
2790:
2788:
2783:. August 5, 2021
2773:
2767:
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2764:
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2653:
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2635:Guyana Chronicle
2627:
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2601:
2595:
2594:
2588:
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2205:
2199:
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2179:
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2170:
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2153:
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2118:
2108:
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2101:
2095:
2085:
2079:
2078:
2076:
2074:
2059:
2053:
2048:
2042:
2037:
2031:
2030:
2022:
2016:
2015:
2013:
2011:
1996:
1990:
1984:
1975:
1974:
1972:
1970:
1959:
1953:
1952:
1950:
1948:
1933:
1927:
1926:
1924:
1922:
1911:
1905:
1904:
1902:
1900:
1889:
1883:
1882:
1880:
1878:
1871:Federal Register
1863:
1857:
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1840:
1834:
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1826:
1820:
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1526:
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1512:
1506:
1505:
1492:
1486:
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1471:
1462:
1461:
1457:Minneapolis Star
1448:
1442:
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1427:
1421:
1420:
1407:
1401:
1400:
1392:
1386:
1385:
1383:
1381:
1375:
1364:
1343:
1342:
1334:
1301:
1300:
1298:
1296:
1284:
1177:Asia and Oceania
903:
862:
761:regulatory signs
731:
722:
547:
541:
535:
464:Federal Register
456:Federal Register
430:
421:
377:
336:
332:
210:American English
190:automobile clubs
114:
111:
109:
107:
88:
86:
81:
74:Publication date
31:
24:
20:
4224:
4223:
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4217:
4215:
4214:
4213:
4199:
4198:
4197:
4192:
4161:
4136:
4105:
3989:
3959:
3936:
3888:
3867:
3802:
3726:North Macedonia
3577:
3399:
3340:
3292:
3254:
3230:Regulatory sign
3225:One-way traffic
3183:
3178:
3148:
3143:
3134:
3000:
2874:
2867:
2860:
2806:
2805:
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2797:
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2406:
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2401:
2391:
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2377:
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2362:
2360:
2358:treaties.un.org
2352:
2351:
2336:
2326:
2324:
2316:
2315:
2311:
2301:
2299:
2288:
2282:
2281:
2277:
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2261:
2256:
2255:
2251:
2241:
2239:
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2229:
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2213:
2207:
2206:
2202:
2192:
2190:
2181:
2180:
2176:
2166:
2164:
2155:
2154:
2150:
2140:
2138:
2133:
2132:
2128:
2116:
2110:
2109:
2105:
2093:
2087:
2086:
2082:
2072:
2070:
2061:
2060:
2056:
2049:
2045:
2038:
2034:
2023:
2019:
2009:
2007:
1998:
1997:
1993:
1985:
1978:
1968:
1966:
1961:
1960:
1956:
1946:
1944:
1934:
1930:
1920:
1918:
1913:
1912:
1908:
1898:
1896:
1891:
1890:
1886:
1876:
1874:
1865:
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1860:
1850:
1848:
1841:
1837:
1828:
1827:
1823:
1813:
1811:
1802:
1798:
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1772:
1768:
1758:
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1722:
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1705:
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1690:
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1575:
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1560:
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1514:
1513:
1509:
1501:The Independent
1494:
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1409:
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1393:
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1077:
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1066:
1053:
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1019:), and Chile's
997:
992:
986:
938:Dutch Caribbean
918:
910:
892:
890:Central America
860:
848:
842:
794:
788:
742:
741:
740:
739:
734:
733:
732:
724:
723:
712:
657:(MN MUTCD)
609:(DE MUTCD)
597:(CA MUTCD)
549:
545:
543:
539:
537:
533:
531:
524:
492:
440:
439:
438:
437:
433:
432:
431:
423:
422:
370:
334:
262:Charlottesville
182:
104:
84:
82:
79:
75:
50:
17:
12:
11:
5:
4222:
4212:
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4098:
4093:
4088:
4083:
4078:
4073:
4068:
4063:
4058:
4053:
4048:
4043:
4041:Highway Gothic
4038:
4033:
4028:
4023:
4018:
4013:
4008:
4006:ASTRA-Frutiger
4003:
3997:
3995:
3991:
3990:
3988:
3987:
3982:
3977:
3971:
3969:
3965:
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3808:
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3786:United Kingdom
3783:
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3678:
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3648:
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3638:
3636:Czech Republic
3633:
3628:
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3608:
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3352:
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3345:
3342:
3341:
3339:
3338:
3333:
3328:
3323:
3321:Mandatory sign
3318:
3313:
3311:Priority signs
3308:
3302:
3300:
3294:
3293:
3291:
3290:
3288:Filter in turn
3285:
3280:
3270:
3264:
3262:
3260:Priority signs
3253:
3252:
3247:
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3227:
3222:
3217:
3212:
3207:
3202:
3200:Bilingual sign
3197:
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3008:
3006:
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2999:
2998:
2993:
2988:
2983:
2978:
2973:
2971:South Carolina
2968:
2963:
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2953:
2948:
2943:
2941:North Carolina
2938:
2933:
2928:
2923:
2918:
2913:
2908:
2903:
2898:
2893:
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2880:
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2866:(2009 edition)
2859:
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2800:External links
2798:
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2721:
2710:
2699:
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2648:
2622:
2596:
2575:
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1976:
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1736:
1730:Available via
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1487:
1463:
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1399:. p. 338.
1387:
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1302:
1278:
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1227:Main article:
1224:
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1217:Highway Gothic
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1190:Main article:
1187:
1184:
1178:
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1049:Main article:
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1028:
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999:Road signs in
996:
993:
988:Main article:
985:
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909:
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850:Road signs in
844:Main article:
841:
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790:Main article:
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363:23 U.S.C.
351:23 U.S.C.
254:U.S. Route 250
181:
178:
140:(FHWA) of the
132:, abbreviated
116:
115:
102:
98:
97:
94:
90:
89:
76:
73:
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4071:Rail Alphabet
4069:
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4057:
4054:
4052:
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4047:
4046:LLM Lettering
4044:
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4032:
4029:
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4024:
4022:
4019:
4017:
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4009:
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4002:
3999:
3998:
3996:
3992:
3986:
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3976:
3975:Traffic light
3973:
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3893:South America
3891:
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3834:United States
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3809:
3807:North America
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3709:
3707:
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3702:
3701:Liechtenstein
3699:
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3692:
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3181:Traffic signs
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3097:
3093:, section 900
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2991:West Virginia
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2826:MUTCD History
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2610:Kaieteur News
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2439:(in Spanish).
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1778:. p. E1.
1777:
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1755:. p. 183
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1687:. p. S22
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1543:. p. 125
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749:Warning signs
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158:United States
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4148:
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3948:Soviet Union
3905:Buenos Aires
3558:Turkmenistan
3523:Saudi Arabia
3385:South Africa
3306:Warning sign
3245:Tourist sign
3088:
2961:Pennsylvania
2946:North Dakota
2863:
2785:. Retrieved
2780:
2771:
2759:. Retrieved
2755:
2746:
2734:. Retrieved
2724:
2713:
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2690:. Retrieved
2685:
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2659:(in Spanish)
2651:
2641:December 30,
2639:. Retrieved
2634:
2625:
2615:December 30,
2613:. Retrieved
2609:
2599:
2590:
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2568:December 22,
2566:. Retrieved
2561:
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2533:
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2503:December 22,
2501:. Retrieved
2497:
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2414:December 30,
2412:. Retrieved
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2141:November 30,
2139:. Retrieved
2129:
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2071:. Retrieved
2066:
2057:
2046:
2035:
2020:
2008:. Retrieved
2003:
1994:
1969:December 27,
1967:. Retrieved
1957:
1947:December 20,
1945:. Retrieved
1941:
1931:
1919:. Retrieved
1909:
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1870:
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1806:
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1540:
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765:
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700:
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664:
652:
640:
628:
616:
604:
592:
583:
573:through the
560:
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122:
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4166:Comparisons
3884:New Zealand
3853:El Salvador
3839:Puerto Rico
3771:Switzerland
3721:Netherlands
3533:South Korea
3518:Philippines
3235:Speed limit
2966:Puerto Rico
2761:October 28,
2736:January 16,
2663:January 16,
2327:October 28,
2302:December 5,
2167:January 11,
2010:January 12,
1877:January 11,
1521:Daily Press
1295:January 11,
954:Saint Lucia
819:francophone
776:New Zealand
567:Puerto Rico
514:), and the
490:Development
372:23 CFR
270:Minneapolis
4130:Road signs
4016:Caractères
3850:Costa Rica
3716:Montenegro
3601:Azerbaijan
3568:Uzbekistan
3543:Tajikistan
3488:Kyrgyzstan
3483:Kazakhstan
3421:Bangladesh
3416:Azerbaijan
3350:By country
3239:by country
3128:Utah MUTCD
3012:California
2986:Washington
2787:August 17,
2392:January 3,
1814:August 26,
1759:August 19,
1691:August 19,
1380:August 10,
1274:References
1235:road signs
815:anglophone
569:, and the
399:color code
384:§ 552
367:§ 402
355:§ 401
341:, 72
4096:Transport
4036:Helvetica
4026:Clearview
4021:Clarendon
3994:Typefaces
3900:Argentina
3879:Australia
3862:Nicaragua
3856:Guatemala
3706:Lithuania
3538:Sri Lanka
3528:Singapore
3463:Indonesia
3436:Hong Kong
3375:Mauritius
3273:Stop sign
3220:Logo sign
3205:Crossbuck
3072:Minnesota
2996:Wisconsin
2976:Tennessee
1942:Bloomberg
1186:Australia
1157:Venezuela
984:Argentina
978:Venezuela
772:Australia
633:(MdMUTCD)
63:Publisher
55:Published
4203:Category
4051:Motorway
4031:DIN 1451
3927:Colombia
3859:Honduras
3741:Portugal
3621:Bulgaria
3548:Thailand
3513:Pakistan
3503:Mongolia
3498:Malaysia
3426:Cambodia
3390:Tanzania
3370:Botswana
3084:Missouri
3077:MN MUTCD
3060:Michigan
3048:Maryland
3029:DE MUTCD
3024:Delaware
3017:CA MUTCD
2981:Virginia
2951:Oklahoma
2936:New York
2926:Nebraska
2921:Michigan
2911:Illinois
2896:Colorado
2692:March 3,
2591:gysbi.gy
2242:July 14,
2073:July 12,
1899:March 2,
1732:ProQuest
1664:July 21,
1616:July 21,
1589:July 21,
1252:See also
1242:Thailand
1223:Thailand
1205:height.)
1109:Paraguay
1064:Colombia
962:Suriname
934:Dominica
693:(TMUTCD)
681:(OMUTCD)
645:(MMUTCD)
621:(IMUTCD)
522:Adoption
313:and the
250:Columbus
4125:Traffic
4121:Vienna
4011:Austria
3932:Ecuador
3912:Bolivia
3872:Oceania
3824:Jamaica
3781:Ukraine
3746:Romania
3686:Ireland
3681:Iceland
3676:Hungary
3666:Germany
3661:Georgia
3651:Finland
3646:Estonia
3641:Denmark
3626:Croatia
3611:Belgium
3606:Belarus
3596:Austria
3591:Armenia
3573:Vietnam
3453:Georgia
3411:Armenia
3380:Namibia
3277:all way
3053:MdMUTCD
3036:Indiana
2891:Arizona
2686:carp.pe
2220:May 23,
2193:May 23,
2135:"MUTCD"
2123:. 2015.
2100:. 2020.
1921:May 15,
1547:July 8,
1119:Spanish
1075:Ecuador
1001:Bolivia
995:Bolivia
974:Ecuador
942:Grenada
881:symbols
823:symbols
811:Ontario
780:Ireland
375:655.603
358:et seq.
331:Pub. L.
186:highway
180:History
154:signals
101:Website
83: (
36:Authors
4117:Geneva
4101:Tratex
3968:Lights
3917:Brazil
3829:Mexico
3814:Canada
3776:Turkey
3766:Sweden
3756:Serbia
3751:Russia
3736:Poland
3731:Norway
3696:Latvia
3671:Greece
3656:France
3631:Cyprus
3583:Europe
3553:Turkey
3473:Israel
3448:Cyprus
3395:Uganda
3365:Angola
3358:Africa
3116:TMUTCD
3104:OMUTCD
3065:MMUTCD
3041:IMUTCD
2956:Oregon
2931:Nevada
2886:Alaska
2534:Scribd
2498:Scribd
2297:SEDATU
1851:May 9,
1100:Guyana
1027:Brazil
976:, and
966:Brazil
908:Belize
852:Mexico
840:Mexico
786:Canada
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500:AASHTO
459:2012.
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339:89–564
337:
288:, and
282:Turkey
274:France
152:, and
4076:Rotis
4061:Panno
4001:Arial
3922:Chile
3796:Wales
3761:Spain
3711:Malta
3691:Italy
3508:Nepal
3478:Japan
3458:India
3441:Macau
3431:China
3188:Signs
3111:Texas
2906:Idaho
2864:MUTCD
2682:(PDF)
2587:(PDF)
2558:(PDF)
2476:(PDF)
2433:(PDF)
2386:(PDF)
2289:(PDF)
2262:(PDF)
2214:(PDF)
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2094:(PDF)
2004:MUTCD
1374:(PDF)
1171:MUTCD
1045:Chile
970:Chile
946:Haiti
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343:Stat.
286:India
278:Chile
268:near
260:near
248:near
134:MUTCD
108:.fhwa
106:mutcd
4158:(UK)
4152:(US)
4086:Tern
3819:Cuba
3493:Laos
3468:Iran
3404:Asia
3123:Utah
3099:Ohio
2916:Iowa
2789:2023
2763:2022
2738:2024
2694:2024
2665:2024
2643:2023
2617:2023
2570:2023
2541:2023
2505:2023
2416:2023
2394:2024
2365:2023
2329:2022
2304:2023
2293:SICT
2270:2023
2244:2021
2222:2021
2195:2021
2169:2021
2143:2021
2075:2021
2012:2024
1971:2023
1949:2023
1923:2023
1901:2023
1879:2021
1853:2021
1816:2020
1761:2020
1693:2020
1666:2020
1618:2020
1591:2020
1549:2023
1382:2020
1297:2024
1129:Peru
1089:and
960:and
828:The
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