Road signs in Thailand

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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".[citation needed]

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.[citation needed]


Examples Information Number digits
Expressway route numbers 5 - 10
ทางออก 53

ทางออก 298
Expressway exit numbers EXIT 1 - EXIT 99
EXIT 200 - 299


Sign on Route 12 in the north of the country
Examples Information Number digits
Thai Highway-1.svg Main highway route numbers (Northern) 1xxx
Thai Highway-21.svg Main highway route numbers (Northeastern) 2xxx
EXIT 134
Highway exit numbers EXIT 101 - 199
Thai Highway-333.svg Main highway route numbers
Thai Highway-402.svg Main highway route numbers

Highway codes[edit]

Directional and distance signs[edit]

Tolled expressway and highway signs[edit]

E 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.

Non-tolled national, provincial and municipal roads[edit]

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

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

Asian Highway route signs[edit]

As part of the Asian Highway Network.

Rural route signs[edit]

Regulatory signage[edit]

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!)

Warning signage[edit]

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!

Construction signage[edit]

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

Informational signage[edit]

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


Border signs[edit]

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


Province border signs

Emblem of Royal Thai Police.png

District border signs

Road name signage[edit]

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


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

Bridge signage[edit]


Bridge numbers

River signage[edit]

Old Sign[edit]

hese signs have been superseded, but can still be seen in some places

Sign vocabulary[edit]

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[edit]


External links[edit]