- Warning sign
-
"Warning Sign" redirects here. For other uses, see Warning Sign (disambiguation).For a sign on a vehicle or building relating to it or its contents, see placard.
A traffic warning sign is a type of traffic sign that indicates a hazard ahead on the road that may not be readily apparent to a driver.[1]
In most countries, they usually take the shape of an equilateral triangle with a white background and a thick red border. However, both the color of the background and the color and thickness of the border varies from country to country.
In the People's Republic of China (except for Macau and Hong Kong), warning signs appear with a black border and a yellow background. In Sweden, Serbia, Bosnia and Herzegovina, Croatia, Greece, Finland, Iceland, the Republic of Macedonia and Poland, they have a red border with an amber background. This is due to the weather, as it is easier to see a red/amber sign in the snowy weather than a red/white sign. The polar bear warning sign in Svalbard recently changed from displaying a black bear on white background to a white bear on black background (both signs are triangular with a red border). Some countries (like France, Norway, Spain) that normally use a white background have adopted an orange or amber background for road work or construction signs.
Warning signs in some countries have a diamond shape in place of the standard triangular shape. In the United States, Canada, Mexico, Thailand, Australia, Japan, Philippines, Indonesia, Malaysia, New Zealand, most of South America, and also Ireland (diverging from the standards of the rest of Europe) use warning signs are black on a yellow background and usually diamond-shaped, while temporary signs (which are typically construction signs) are black on an orange background. Some other countries also use these standards for some signage.
The warning signs usually contain a symbol. In Europe they are based on the UNECE Vienna Convention on Road Signs and Signals. In United States they are based on their own standard and often contain text only.
- Sample Shapes and Colors
-
Diamond shaped with yellow background
-
Circular with yellow background
-
Rectangular shape with yellow background
-
Triangular with orange-yellow background
-
Triangular with yellow background
-
Triangular with white background
History
In 1908 the automobile association in West London set the first warning signs.
Warning signs
Warning signs can indicate any potential hazard, obstacle or condition requiring special attention. Some of the most common warning signs are the following.
General caution
General warning signs are used in instances in which the particular hazard, obstacle or condition is not covered by a standard sign. In Europe, they usually comprise an exclamation mark on the standard triangular sign (Unicode #9888: ⚠) with an auxiliary sign below in the local language identifying the hazard, obstacle or condition. In countries using diamond-shaped signs, the explanatory language is written directly on the diamond-shaped sign, although it may contain only a general warning such as "Caution", and pictograms may also be used as it has been initiated at first in Quebec.
-
France, Turkey, Germany and Italy caution sign.
-
Sweden caution sign.
-
Poland caution sign.
-
U.K. caution sign.
-
Ireland caution sign.
Obstacles
Diamond-shaped with reflectors are placed at point of curbs, dividers, or other lane obstacles. Rectangular signs with diagonal stripes indicate solid objects such as barricades, bridge abutments, utility poles or natural obstacles near the roadway. Left side obstacles are marked with stripes running high to low, left to right; right side obstacle signs use stripes running high to low, right to left; in a sense akin to International symbol of arrow pointing down toward side toward roadway.
-
U.S. and Canada divided road ahead sign.
-
Alternate U.S. divided highway ahead sign.
-
U.S. divided road ahead sign.
-
U.S and Canada pass left or right of obstacle sign.
-
Australian Divided road ahead sign.
-
Ireland divided highway begins sign.
-
Ireland divided highway ends sign.
Animals crossing the roadway
Signs may warn of wild animals (moose, bear, elk, deer, reindeer, polar bears, camels, wallabies, kangaroos, alligators, etc.) or farm animals (cows, horses, ducks, sheep) that may stray onto the road. In the United States, a SHARE THE ROAD plaque is sometimes placed below these warning signs when used in this manner.
-
Caltrans migrating bears sign
-
Pennsylvania duck crossing sign
-
U.S. cattle crossing sign
-
U.S. and Canada deer crossing sign
-
Japan animals crossing
-
Italy, Germany and Latvia wild animal crossing sign
-
U.K. wild fowl warning sign
-
Norway reindeer crossing sign
-
Russia cattle crossing sign
-
Russia wild animal crossing sign
-
Kangaroo crossing sign in Australia
-
Frill-necked Lizard crossing sign in Australia
-
Camel warning sign in the UAE
-
Ducks Crossing warning sign in Australia
-
A sheep warning sign in the U.K.
-
Danger of encountering polar bears - "Applies to all Svalbard"
Odd vehicles crossing the roadway
Tank crossing sign in U.K.
Also equipment (tractors, forklifts, snowmobiles, Amish buggies etc.) crossing or traveling along the road.
-
U.S. tractor/farm vehicle crossing warning sign.
-
New York State motorcycle crossing warning sign.
-
New York State ATV crossing warning sign.
-
Ohio golf cart crossing warning sign.
-
U.S. horse-drawn vehicle ahead warning sign.
-
Horse-drawn vehicle ahead, Ohio.
-
Pennsylvania tank crossing warning sign.
Road works or construction
Light Rail testing construction sign in Charlotte, North Carolina.
Temporary road closure signs in Los Angeles, CAThese signs are often temporary in nature and used to indicate road works (construction), poor roads, or temporary conditions ahead on the road including: flagmen, survey crew, single-lane, detour, bridge out, utility crew ahead, blasting area, bump, dip, frost heaves, flooding (or "High water"), soft shoulder, uneven pavement, freshly oiled road, loose gravel, smoke on road, trucks entering, etc. (note that some high water signs are posted to alert drivers of a flood prone area and do not actually mean that there is a flooded section of road ahead) In France, Italy, Spain, Norway etc., warning (and speed limit) signs connected with road works have yellow background, these countries normally have white background on signs. In America and Ireland, signs connected with road works have orange background.
-
U.S. Road work ahead sign.
-
U.S. Road work ahead sign, metric version.
-
U.S. and Canada Workers on the road sign.
-
Canada construction ahead sign.
-
New York State bridge closed ahead sign.
-
Caltrans traffic fines doubled in work zones sign.
-
New York State increased enforcement area work zone sign.
-
Republic of Ireland road works sign.
-
Austria and Turkey road works sign.
-
Italy construction sign.
-
Norway road works sign.
-
Swedish road works sign.
-
France construction sign.
-
Poland construction sign.
-
U.K. road works sign.
-
U.K.loose chippings warning sign.
-
Netherlands and Turkey loose chippings warning sign.
-
Poland loose chippings sign.
Curves and corners
These signs indicate that ahead are dangerous or unexpected bends in the road, some being continuous, others being sharp-ended. Signs may indicate whether the curves are to the right or to the left and whether the degree to which the curves or bends are sharp. They mays also indicate a series of curves or bends ahead.
-
U.S. and Canada sharp turn ahead sign.
-
U.S. and Canada sharp curve ahead sign.
-
U.S. and Canada sharp reverse turns ahead sign.
-
U.S. and Canada sharp reverse curves ahead sign.
-
U.S. and Canada winding road ahead sign.
-
U.S. and Canada winding road ahead sign. (opposite direction)
-
Republic of Ireland sharp corner (Advisory speed <30 mph)
-
Republic of Ireland curve sign.(Advisory speed > 20 mph)
-
Austria and Turkey left curve sign.
-
Sweden curve to the left sign.
-
Poland curve to left sign.
-
U.K. right bend ahead.
-
Republic of Ireland series of corners
-
Poland double curve to left sign.
-
U.K. double bend ahead.
-
Republic of Ireland series of bends (winding road)
-
Republic of Ireland junction at corner
-
Republic of Ireland junction at a bend
-
Ireland side road junction on a curve sign.
-
U.S. and New Zealand side road junction on a curve sign.
-
U.S. curve to the right sign, with advisory speed limit.
Chevrons and arrows
Signs indicating a sharp bend on a road.Chevron shaped symbols or arrows on rectangular signs may be placed at the actual location of the bend or curve to further mark the location of the curve and to assist in negotiation of the curve. They may also be used to indicate "merge" with other traffic, as for an on-ramp of a limited-access highway.
Singapore chevron signs.Tunnels
The signs are used to indicate tunnels, where lights are usually required, and a general change in the light level. May also indicate low ceiling clearance. Truck drivers should also watch for prohibited cargo signs (e.g., Hazmat, propane, explosives) upon approach to tunnels.
-
U.S. tunnel sign.
-
Swedish tunnel ahead sign.
-
Norway tunnel sign.
-
Czech tunnel sign.
-
U.K. tunnel sign.
-
Taiwan tunnel warning sign.
-
German tunnel sign.
-
Polish tunnel sign.
-
South Korea tunnel sign.
Bridges
These signs are used where traffic may be constricted to a narrow bridge, or where the bridge may have a movable span closed to vehicles while boats pass (e.g., drawbridge or floating bridge). They may also be used for underpass to indicate low overhead clearance.
-
New York State restricted weight bridge ahead sign.
-
U.S. narrow bridge warning sign.
-
U.S. narrow bridge ahead sign (alternative).
-
Italy draw bridge ahead sign. In Latvia, the bridge on the sign is without the rails.
-
Russia draw bridge ahead sign.
-
U.K. draw bridge ahead sign.
-
Republic of Ireland bridge height sign. (note: sign now obsolete as units shown are now metric or metric/imperial)
-
Singapore height prohibition ahead sign.
Traffic signals
These warning signs indicate that traffic lights are ahead, and are often used when it is difficult to see that a traffic light may already be showing red, to warn a driver to prepare to slow down. They may be supplemented with flashing light or lighted sign when light is red or turning red.
-
U.S. and Canada traffic signal ahead.
-
U.S. traffic signal ahead (alternative).
-
U.K. traffic lights ahead sign.
-
Austria traffic signal ahead sign.
-
Australian traffic signal ahead sign
Warning signs for regulatory signs
As for traffic signals, above, some "stop" or "yield" signs may require additional warning or reminder, especially in dense areas or where the sign has been added recently.
-
U.S. and Canada stop sign ahead.
-
U.S. stop sign ahead (alternative).
-
U.S. and Canada yield ahead sign.
-
U.S. yield sign ahead (alternative).
Level crossings and intersections
These signs warn of road crossings at even level (crossroads, T-intersection, forks (Y-intersection), rotary/roundabout). They may also indicate "hidden driveway" intersecting the road ahead. (Compare with bridges/overpasses/viaducts).
-
U.S. and Canada Intersection ahead sign.
-
U.S. and Canada Intersection ahead sign.
-
U.S. and Canada Intersection ahead sign.
-
U.S. and Canada Intersection ahead sign.
-
U.S. and Canada Intersection ahead sign.
-
Hidden intersection, Delaware.
-
U.K. crossroads ahead sign.
-
Japan crossroads sign.
-
Republic of Ireland crossroads with a major road sign.
-
Italy and Latvia crossroads with right-of-way from the right sign.
-
Republic of Ireland junction with a minor side-road sign.
-
Italy and Latvia junction with a minor side-road sign.
-
Swedish intersection with a minor cross-road sign.
-
Swedish intersection with minor side-road sign.
-
Italy and Latvia junction with a minor cross road sign.
-
Republic of Ireland staggered crossroads with roads of equal importance sign.
-
Republic of Ireland junction at corner with a minor road sign.
-
Republic of Ireland junction with dual-carriageway sign.
-
Australia, New Zealand and Samoa crossroads ahead sign.
-
New Zealand, Ontario and Samoa crossroads ahead sign.
- Roundabouts/Rotaries
-
U.S. and Canada roundabout/traffic circle ahead sign.
-
U.S. Traffic circle ahead sign.
-
U.K. mini roundabout ahead sign.
-
U.K. large roundabout head sign.
-
Republic of Ireland roundabout ahead sign.
-
Italy and Latvia roundabout ahead sign.
-
Finland roundabout sign.
-
Roundabout ahead sign in Poland.
-
Australian roundabout sign.
Lane starts and ends
These signs indicate when a multilane highway is being narrowed, when a passing lane is ending, or where the road is widening or a passing lane starting. Another type of sign is used to indicate central "two-way" left turning lane in center of roadway. Warning signs may also warn of "Highway ends", where the road changes class or type.
-
U.S. and Canada right lane ends sign.
-
U.S. and Canada divided highway ahead sign.
-
Alternate U.S. divided highway ahead sign.
-
U.S. divided road ahead sign.
-
Canada New York State one lane road ahead sign.
-
New York State one lane road ahead sign.
-
Japan lane decrease sign.
-
U.K. road narrows on both sides ahead sign.
-
U.K., Italy and Latvia road narrows from the right sign.
-
U.K. road narrows from left ahead sign.
-
British, Hong Kong & Singapore "end of dual carriageway" sign
Roads with one entry point
Roadways that only have one entry/exit point - "dead end", "not a through street" or "no outlet".
-
Pennsylvania No Through Street sign.
-
Pennsylvania loop street sign.
-
U.S. No Outlet sign.
-
U.S. Dead End sign.
-
New York City Dead End sign.
-
New York City End sign.
-
Swedish dead end sign.
-
European dead end sign.
No passing zones
Vertical yellow signs in triangular shape are used in U.S. to supplement solid yellow lane stripe where it is dangerous to overtake another vehicle, especially where roadway may be obscured by snow or other precipitation.
-
Japanese No Passing sign
-
U.S. No Passing sign (placed on left side)
-
U.S. No Passing sign (placed on right side)
-
U.K. No Overtaking sign.
-
Korean No Passing sign
Pedestrian crossings
The signs are used to warn drivers of people walking in the street. They may also be used to warn of children playing, playgrounds, bicycle area, deaf child, blind pedestrians, and thickly settled zones where pedestrians may enter the road.
In California, United States near the Mexican border, there are warning signs showing a running family. This is to warn motorists to look out for illegal immigrants who try to escape authorities by running through freeway traffic. The symbol was created by California Department of Transportation employee John Hood in the late 1980s.[2]
-
U.S. and Canada pedestrian crossing sign.
-
Blind pedestrian crossing sign, Pennsylvania.
-
Special Needs Child Crossing, New York City
-
Blind child, Delaware.
-
Hearing impaired child sign Pennsylvania.
-
Deaf child area sign, New York State.
-
Deaf child, Delaware and Canada.
-
Deaf children near sign, California.
-
Autistic child warning, USA
-
U.K. Zebra crossing ahead sign.
-
U.K. pedestrians on road ahead sign.
-
Netherlands pedestrian crossing sign
-
Poland pedestrian crossing ahead sign
-
Sweden pedestrian crossing sign (Used to warn ahead)
-
Russia pedestrian crossing sign.
Schools
School Zone sign with warning light in U.S.
Traffic sign for school in Denmark.The signs mark school zones (in which lower speed limits may be in place), student crossings, crossing guards or signals ahead. In the U.S. and Canada, pentagon shaped signs are used in place of the usual diamond-shaped signs. The shape of the U.S. school zone resembles a one-room school house and is the only U.S. sign shaped this way. Some Canadian provinces use an identical sign. Ontario uses a white on blue version of this sign.[3]
-
Canada and former U.S. school zone sign.
-
U.S. school zone sign.
-
Republic of Ireland children crossing sign.
-
Norway children crossing sign.
-
Poland children crossing sign.
-
Russia children sign.
Bicycle
-
U.S. bicycles ahead sign.
-
New York City share the road sign.
-
Pennsylvania share the road sign.
-
Maryland share the road sign.
-
San Francisco bike lane sign.
-
U.S. Bikeway narrows sign.
-
Cycling on road prohibited sign.
-
Poland bicycle crossing warning sign.
-
Russia bicycle crossing warning sign.
Other signs with unprotected people
-
U.S. playground ahead sign.
-
Norway skiers crossing sign.
-
Sweden skiers crossing sign.
Fire stations
These signs warn of approach to where firefighters may be entering the road with fire engines or other emergency apparatus, where other drivers will have to stop and wait until they pass.
-
U.S. and Canadian Fire Station sign.
-
Delaware Emergency Vehicles sign.
-
Wisconsin fire trucks entering when signal flashes sign.
-
Texas Emergency Vehicles sign.
-
New York State Fire House sign.
-
Maryland Firehouse Signal sign.
Oncoming traffic
The signs may be used to warn people of oncoming traffic; shown when a motorway becomes a dual carriageway or a normal road without a central reservation or median.
-
U.S. two-way traffic sign.
-
U.K. Traffic has priority over vehicles from the opposite direction.
-
Republic of Ireland two-way traffic sign.
-
Italy and Latvia two-way traffic sign.
-
Sweden two-way traffic sign.
-
Poland two-way traffic sign.
Level crossing/Railway crossing
These signs are used to warn of level crossings ahead. In most countries a red triangle warning sign is used, with various pictograms for unguarded crossings, crossings with manual gates, and automatic level crossings. In most of Europe an old style gate is used for a crossing with gates, and a steam locomotive for a crossing without gates. Similar pictograms are also used in Ireland albeit on an amber diamond sign. In the United States the warning of all types of railway crossings is made using a circular yellow sign. The actual crossing is also marked with crossed "Railroad Crossing" crossbuck signs (Stop, look, listen) and possibly lights, bells, and barriers.
- Crossing with Gate
-
U.K. level crossing with gate or barrier sign.
-
Republic of Ireland level crossing with gates sign.
-
Italy rail crossing with gates sign.
-
Sweden crossing with gate sign.
-
Russia crossing with gate sign.
- Unguarded Crossing
-
Railway level crossing without gate or barrier ahead.
-
Railway or tramway crossing without gate or barrier.
-
Republic of Ireland unguarded level crossing sign.
-
Italy rail crossing without safety arm.
-
Sweden unguarded crossing sign.
-
German unguarded crossing sign.
-
Russia unguarded crossing sign.
- Other Crossings
-
U.S. railroad crossing sign (general).
-
Caltrans light rail crossing ahead sign.
-
U.S. rail line in highway median of cross street
-
U.K. tramcars crossing ahead sign.
-
Republic of Ireland automatic level crossing sign.
-
Finland tram crossing sign.
-
Russia tram crossing sign.
- Warning at Crossing
-
U. S. railroad crossing sign, MUTCD R15-1.
-
Canadian railway crossing sign
-
Caltrans light rail crossing sign.
-
Norway signal track level crossing sign.
-
Netherlands track level crossing sign.
-
Austrian railway crossing sign.
-
Russia single-track railway sign.
-
Russia multiple-track railway sign.
Falling rocks
Falling rocks sign in Bowen Island, Canada.These signs may be used to indicate the hazards of fallen or falling rocks on the road ahead. They are usually pictographs, but may also include wording, such as "fallen rock", "falling rock", or "rock slide". In Italy the words may be "caduta sassi" or "caduta massi"; in France "chûte de pierres"; in Mexico "derrumbes".
-
New York State fallen rock sign.
-
Pennsylvania falling rocks sign.
-
North Carolina falling rock sign.
-
Idaho watch for rock sign.
-
Caltrans rock slide area sign.
-
New York State rock/mud slides warning sign.
-
British & Hong Kong "falling rocks" warning sign.
-
Norway falling rocks sign.
-
Japanese "falling rocks" sign.
sign warning about lack of signs, AlaskaFor example, a warning sign with the image of an aircraft in the middle of it indicates an airport or airfield, where drivers should be prepared for low-flying aircraft.
-
New York State low flying planes sign.
-
Delaware low flying aircraft.
-
Pennsylvania balloon launch area.
-
Low flying airplanes cross here sign, Wisconsin.
-
Norway low flying aircraft sign.
-
Russia low flying aircraft sign.
Road conditions
"Slippery when wet", "grooved pavement" (warning to motorcyclists and bicyclists), "Open joints on bridge", "Icy Road", "Bridge freezes before roadway" and variants thereof, and "bump" or "dip" ahead (not related to construction). Truck drivers will need to pay attention to "Steep grade" warnings (or "Down grade, use lower gear"), sometimes posted with the percent grade (e.g., 5 percent). Steep hills may also feature "Runaway truck escape" or "Emergency stop" areas with corresponding signs. The UK has a sign warning of "Adverse camber" on a curve. Also "Loose gravel", "Soft shoulder", "Speed hump", and "Watch for Ice."
- Slippery Pavement
-
U.S. and Canada slippery when wet sign.
-
Slippery road ahead sign.
-
German slippery pavement sign.
-
Swedish slippery pavement sign.
-
Poland slippery pavement sign.
-
Slippery Road Surface sign used in Australia and New Zealand (Unicode: ⛐ U+26D0 CAR SLIDING)
- Steep Grade
-
U.S. and Canada steep grade/hill sign.
-
U.S. steep hill sign.
-
Delaware hill sign (alternate).
-
U.S. and Canada steep grade/hill percentage sign.
-
Idaho steep grade percentage sign.
-
Caltrans watch downhill speed sign.
-
Japan steep descent sign.
-
Austria steep grade sign.
-
U.K. 10% down grade sign.
-
Netherlands 10% grade sign.
-
France 10% down grade sign.
-
Norway steep grade sign.
-
Poland steep grade sign.
-
Korea steep descent sign.
- Bumpy Road
-
U.S. bump sign.
-
New Jersey bumps sign.
-
U.S. rough road sign.
-
Republic of Ireland bumpy road sign.
-
Japan bumpy road sign.
-
Korea bumpy road sign.
-
Germany bumpy road sign.
- Other
-
New York State rumble strips ahead sign.
-
Idaho occasional blinding dust storms sign.
-
Nebraska, may be icy ahead.
-
Bridge ices before road.
-
Bridge may be icy
-
Road floods during high tide, Hawaii.
-
Frost heaves, Idaho.
-
Severe storm area, Idaho.
-
U.S. Dip.
-
Ferry crossing, Missouri.
-
Fog area, Ohio.
-
Poland icy or snow covered roads sign.
Crosswinds or Side winds
Flying socks, as indicated by a windsock on red triangle or yellow diamond signs, indicate locations where a strong side wind may cause the trajectory of the moving vehicle to change drastically, perhaps even "flying" across lanes, causing an accident.
-
New York State crosswinds sign.
-
Pennsylvania high cross winds sign.
-
Idaho frequent high winds sign.
-
Japan cross winds sign.
-
U.K. side winds likely ahead warning sign.
-
Sweden side winds warning sign.
-
Norway cross winds sign.
-
Poland side winds sign.
Slow down
"Slow down" sign in China.General caution signs warning motorists to slow down are sometimes used at least in U.S. and China.
Merge to stay with through traffic
In the United States and Canada, there is special signage for lanes that are about to exit, so that drivers who wish to remain on the main road have adequate time to merge. Such lanes are sometimes indicated by special striping ("alligator stripes") and the sign, "Thru Traffic Merge Left" (or right). On freeways, the green directions sign for the exit ramp may have the additional notation, "Exit Only," and should have black letters on a yellow background for emphasis.
-
U.S. and Canada merge from right sign.
-
Caltrans W74 all traffic merge left sign.
-
U.S. and Canada Added Lane traffic sign.
-
Japan join sign.
-
Italy merge from right sign.
Warning signs with lights
Some warning signs have flashing lights to alert drivers of conditions ahead or remind drivers to slow down. In Britain, they are called warning light.
Evacuation routes
Some areas have special evacuation route signs that are to be followed in case of certain disasters. The signs point to routes either to safety or to less danger.
Evacuation signs are common in areas where there is a high risk of dangers such as flash flooding, volcanic activity and lahar, tsunami, hurricane and storm surge. For example, along the Japanese shorelines, the tsunami warning signs are linked with a network of warning sirens, typically at the top of the cliff of surroundings hills.[4]
Non-traffic warning signs
Warning signs are also found on other potential dangerous sites. At the base of electricity pylons or fences of substations or radiotechnical equipment with open parts leading high voltage, there are signs warning of high voltage. Warning signs can be found at the top of inclines. "Beware of Dog" is a typical warning of the presence of a dog, but there is no standard sign design.
See also
Notes
- ^ Federal Highway Administration. "Section 1A.13 Definitions of Words and Phrases in This Manual". Manual on Uniform Traffic Control Devices (2003 ed.). Washington, DC. p. 1A-14. http://mutcd.fhwa.dot.gov/htm/2003r1r2/part1/part1a.htm. Retrieved 2009-03-01. "Warning Sign—a sign that gives notice to road users of a situation that might not be readily apparent."
- ^ Highway safety sign becomes running story on immigration | The San Diego Union-Tribune
- ^ Driver's Handbook
- ^ Chanson, H. (2010). Tsunami Warning Signs on the Enshu Coast of Japan. Shore & Beach, Vol. 78, No. 1, pp. 52-54. ISSN 4237 0037 4237. http://espace.library.uq.edu.au/view/UQ:203103.
Traffic signs Signs Warning sign · Regulatory sign · Priority to the right · Yield sign · Stop sign · Prohibitory traffic sign · One-way traffic · Speed limit (by country) · Advisory speed limit · Mandatory sign · Special regulation sign · Information sign · Direction, position, or indication sign · Variable-message sign · Bilingual sign · Comparison of European traffic signs · Driver location signs · CrossbuckBy country Lights Typefaces Allerta · Austria (typeface) · Clearview · DIN 1451 · Drogowskaz · FHWA Standard Alphabets for Traffic Control Devices · Frutiger · Caractères · NPS Rawlinson Roadway · Trafikkalfabetet · Transport · TratexConventions Geneva Convention on Road Traffic · Vienna Convention on Road Traffic · Vienna Convention on Road Signs and Signals · Manual on Uniform Traffic Control Devices (USA) · Traffic Signs Regulations and General Directions (UK)
Wikimedia Foundation. 2010.
