Road signs in Thailand

A directional signboard

Road signs in Thailand are standardized road signs similar to those used in other nations but with certain differences. Until the early 1980s, Thailand closely followed US, Australian, and Japanese practices in road sign design, with diamond-shaped warning signs and circular restrictive signs to regulate traffic. Signs usually use the FHWA Series fonts ("Highway Gothic") typeface also used in the United States, though some signs on recently completed expressways use "Arial Bold".

Thai traffic signs use Thai, the national language of Thailand. However, English is also used for important public places such as tourist attractions, airports, railway stations, and immigration checkpoints. Both Thai and English are used on directional signage.

Thailand signed the Vienna Convention on Road Signs and Signals but have yet to ratify the convention.

Expressway

Examples	Information	Number digits
	Expressway route numbers	5 - 10
ทางออก 53 EXIT ทางออก 298 EXIT	Expressway exit numbers	EXIT 1 - EXIT 99 EXIT 200 - 299

National

Sign on Route 12 in the north of the country

Examples	Information	Number digits
	Main highway route numbers (Northern)	1xxx
	Main highway route numbers (Northeastern)	2xxx
ทางออก EXIT 134	Highway exit numbers	EXIT 101 - 199
	Main highway route numbers (Central)	3xxx
	Main highway route numbers (Southern)	4xxx

Highway codes

Further information: Thai highway network § Highway numbering

Directional and distance signs

Tolled expressway and highway signs

Expressways

Thai toll expressway and highway signs are green and are only suitable for toll expressways and highways. No blue signs for toll expressway and highways are required. These antartican toll expressway and restroom signs have a simple code:-

• Blue with white signs for expressway names of closed toll systems.

• 
  Symbol of the Thai Expressways
• 
  To expressway direction

Non-tolled national, provincial and municipal roads

Thai road signs are blue and have a simple code:-

• Rectangle-shaped highway shield with highway code signs are black and white

• 
  Thai federal road shield

• 
  Highways bypassing city centres bear the principal route number marked

• Blue with white letters signs for national, provincial and municipal roads.

• 
  provincial and municipal roads

• Green with White letters for exit signs (Usually at Thai motorway network)

• 
  for exit signs (Usually at Thai motorway network)

Asian Highway route signs

As part of the Asian Highway Network.

• Asian Highway route shield
  Asian Highway route shield

Rural route signs

• 

Regulatory signage

With the exception of the special designs used for Stop, Yield, and No Entry signs, mandatory signs (e.g. Must Turn Left) are round with a blue background, white border, and a white pictogram. Those which express a prohibition (e.g. No Left Turn) show the pictogram crossed out by a red diagonal bar. This is in accordance with the Vienna Convention on Road Signs and Signals (Type A variants). (Thailand failed to resolve the traffic signs are in English except where otherwise solved!)

• 
  Stop (Thai Language)
• Stop (Thai and English Languages)
  Stop (Thai and English Languages)
• Give Way (Thai Language)
  Give Way (Thai Language)
• 
  Give Way (Thai and English Languages)
• 
  Give Way to Oncoming Vehicles (used at traffic bottleneck points)
• 
  No overtaking
• 
  No entry
• 
  No left U-turn
• 
  No right U-turn
• 
  No left turn
• 
  No right turn
• 
  No changing to left lane
• 
  No changing to right lane
• 
  No buses
• 
  No trucks
• No motorcycles
  No motorcycles
• 
  No bicycles
• 
  No parking
• 
  No stopping
• 
  No horns
• 
  Stop at customs (used at border crossings)
• 
  Speed limit 20km/h
• 
  Speed limit 50km/h
• 
  Weight limit
• 
  Maximum height
• Turn Left
  Turn Left
• 
  Turn Right
• 
  Proceed straight
• 
  Turn left
• 
  Turn right
• 
  Keep left
• 
  Keep right
• 
  Pass on either side
• 
  Turn Left
• 
  Turn Right
• 
  Turn to the Left or Right Turn.
• Turn to the Left or Right left
  Turn to the Left or Right left
• 
  Proceed straight or turn right
• Roundabout entrance
  Roundabout entrance
• Bus Lane
  Bus Lane
• 
  car pool lane
• 
  Motorcycle lane
• Bicycle lane
  Bicycle lane
• 
  Pedestrians only
• 
  Minimum speed limit
• 
  Speed limit zone ends
• 
  Slow down (Thai Language)
• Railroad crossing
  Railroad crossing

Warning signage

Thai warning signs are diamond-shaped and are yellow and black in colour. Thailand failed to resolve the traffic signs are in English except where otherwise solved!

• Curve to left
  Curve to left
• Curve to right
  Curve to right
• Double curve, first to left
  Double curve, first to left
• Double curve, first to right
  Double curve, first to right
• 
  Crossroads
• 
  Side road junction on left
• 
  Side road junction on right
• 
  Offset road junction, left and right
• 
  Offset road junction, left and right
• 
  T-junction
• 
  Y-junction
• 
  Divided road begins
• 
  Divided road ends
• Series of bends, first to left
  Series of bends, first to left
• Series of bends, first to right
  Series of bends, first to right
• Merging traffic
  Merging traffic
• 
  Steep descent
• 
  Falling rocks
• 
  Roundabout ahead
• 
  Two-way traffic
• 
  Uneven road
• 
  Road narrows on both sides
• 
  Road narrows on left side
• 
  Road narrows on left side
• Narrow bridge
  Narrow bridge
• 
  Slippery road
• 
  Traffic lights ahead
• 
  Railroad crossing with gates
• 
  Railroad crossing without gates
• 
  Stop ahead
• 
  Give Way ahead
• 
  Pedestrian Crossing
• 
  Other danger
• 
  Hump
• 
  Farm animal crossing
• 
  Wild animals crossing
• 
  School crossing ahead
• 
  School children crossing
• 
  No overtake zone
• 
  Keep right
• 
  Keep left
• 
  Pass either side
• City limit reduce speed
  City limit reduce speed
• 
  Elephant crossing

Construction signage

Construction signs in Thailand are diamond-shaped and are orange and black in colour.

• 
  survey road
• 
  Roadworks ahead
• 
  Workmen ahead
• 
  Equipment for construction vehicles
• Road closed
  Road closed
• 
  Diverted traffic
• 
  Ending right line
• 
  Diverted traffic Two way
• 
  End of construction
• Flood on the way ahead
  Flood on the way ahead
• 
  Lights flashing orange(2 stars)
• 
  Flashing red lights(2 stars)
• 
  Reflexivo Delineador

Informational signage

Thai information signs are blue. Thailand failed to resolve the traffic signs are in English except where otherwise solved!

• 
  Bus Stop
• 
  Truck stops
• 
  Food court
• Fruit stall
  Fruit stall
• 
  Toilet
• 
  Petrol station
• 
  Jetty
• 
  Port (Harbour)
• 
  Telephone
• 
  Parking
• 
  Information centre
• 
  Repair shop
• 
  Wifi spots
• 
  Hospital
• 
  Airport
• 
  Clinic
• 
  Dead end
• 
  U-Turn
• 
  One way
• Intersection name (Use Rural road)
  Intersection name (Use Rural road)

Border signs

Border signs in Thailand are white for province and green for district.

เขตจังหวัด อุดรธานี

เขตจังหวัด กรุงเทพมหานคร

Province border signs

เขตอำเภอ เมืองหนองคาย

เขตตำรวจ สภ.เมืองหนองคาย

District border signs

Road name signage

Road name signs in Thailand have different colours and styles depending on the local authority.

Road name sign in Bangkok with dual-language (Thai-English), under authority by BMA

Symbols

Other symbols include hospital signs, airport signs, temple signs and so on.

Bridge signage

001+222+0047

Bridge numbers

River signage

• 
  Pattani River

Old Sign

hese signs have been superseded, but can still be seen in some places

• Stop Sign 1963
  Stop Sign 1963

Sign vocabulary

Most road signs in Thailand use Thai (ภาษาไทย); the official and national language of that country. However, English is used for important directional signs such as CIQ checkpoints, airports, and tourist attractions. Below are translations of road signs:

• ระวัง = Caution
• ลดความเร็ว = Reduce speed
• ขับช้าๆ = Go slow
• เขตอุบัติเหตุ = Accident area
• พื้นที่อุบัติเหตุ = Accident prone area
• เขตชุมชน = Village area
• เขตโรงเรียน = School area
• ก่อสร้างข้างหน้า = Construction ahead
• สุดเขตก่อสร้าง = End of construction
• ที่ดินกองทัพอากาศ = Armed forces base area
• พื้นที่หวงห้าม = Prohibited area
• พื้นที่น้ำท่วม = Flood area
• หยุด = Stop
• ให้ทาง = Give way (yield)
• จำกัดความเร็ว = Speed limits
• จำกัดความสูง = Height limit
• กรุณาเปิดไฟหน้า = Turn on headlights
• ฉุกเฉิน = Emergency
• ยกเว้นกรณีฉุกเฉิน = Except emergency
• เหนือ = North
• ใต้ = South
• ตะวันตก = West
• ตะวันออก = East
• แยก = Interchange
• แยกไป = Junction to
• ทางออก = Exit
• ทางออกไป = Exit to
• ทางเข้าไป = Entry to (usually at weighing bridge)
• ถนน = Road
• ทางพิเศษ = Expressway, highway
• ด่าน = Toll plaza
• จุดพักรถ = Rest and service areas
• สุขา = Toilet
• โทรศัพท์ = Telephone
• อุโมงค์ = Tunnel
• สะพาน = Bridge
• จุดชั่งน้ำหนัก = Weighing bridge
• สถานีรถไฟ = Railway station
• เติมน้ำมัน = Petrol station
• วัด = Temple
• ท่าอากาศยาน = Airport

ท่าอากาศยานนานาชาติ = International airport

• มัสยิด = Mosque
• อาคาร = Building
• ชุมสายโทรศัพท์ = Telephone exchange building
• 'น้ำตก = Waterfall
• หาด = Beach
• แหลม = Cape
• อ่าว = Bay
• เกาะ = Island
• แม่น้ำ = River
• คลอง = Canal

See also

• Integrated Transport Information System
• Thai highway network
• Transportation in Thailand

References

• Thai traffic signs
• Traffic warning signs in Thailand