Road signs in Thailand

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A direction signboard.

Road signs in Thailand are standardized road signs similar to those used in other nations but with certain distinctions. Until the early 1980s, Thailand closely followed American, Australian and Japanese practice 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 Transport Heavy (cf. the second image shown to the right).

Thai traffic signs use Thai, the official and national language in 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 in the direction signs.

Route numbers[edit]


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:-

  • Green 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.

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

Warning signs[edit]

Thai warning signs are diamond-shaped and are yellow and black in colour.

Regulatory signs[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).

Information signs[edit]

Thai information signs are blue.

Construction signs[edit]

-- เมตร

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

Road name sign[edit]

Road name sign in Thailand have many different colours and styles according the local authority to design with them.

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


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


Bridge-related signs[edit]


Bridge numbers

River signs[edit]


Highway concessionaires border limit[edit]


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:

  • เหนือ = North
  • ใต้ = South
  • ตะวันตก = West
  • ตะวันออก = East
  • ระวัง = Caution
  • เขตอุบัติเหตุ = Accident area
  • เขตชุมชน = Village area
  • ลดความเร็ว = Reduce speed
  • แยกไป = Junction to
  • ทางออกไป = Exit to
  • ทางเข้าไป = Entry to (usually at weighing bridge)
  • ก่อสร้างข้างหน้า = Construction ahead
  • สุดเขตก่อสร้าง = End of construction
  • หยุด = Stop
  • ให้ทาง = Give way (yield)
  • จำกัดความเร็ว = Speed limits
  • จำกัดความสูง = Height limit
  • ถนน = Road
  • ทางพิเศษ = Expressway / highway
  • ถนน = Street
  • ถนน = Drive
  • ยกเว้นกรณีฉุกเฉิน = Except emergency
  • ขับช้าๆ = Slow/Slow down
  • จุดพักรถ = Rest and service areas
  • เติมน้ำมัน = Petrol station
  • ฉุกเฉิน = Emergency
  • อุโมงค์ = Tunnel
  • แยก = Interchange
  • ทางออก = Exit
  • กรุณาเปิดไฟหน้า = Turn on headlamps
  • เขตโรงเรียน = School area
  • 'น้ำตก = Waterfall
  • หาด = Beach
  • วัด = Temple
  • อาคาร' = Building
  • ท่าอากาศยาน = Airport
ท่าอากาศยานนานาชาติ = International airport
  • สะพาน = Bridge
  • จุดชั่งน้ำหนัก = Weighing bridge
  • ด่าน = Toll plaza
  • สถานีรถไฟ = Railway station
  • สุขา = Toilet
  • โทรศัพท์ = Telephone
  • ชุมสายโทรศัพท์ = Telephone exchange building
  • อาคาร = Tower
  • แหลม = Cape
  • อ่าว = Bay
  • เกาะ = Island
  • แม่น้ำ = River
  • คลอง = Canal
  • ที่ดินกองทัพอากาศ = Armed forces base area
  • พื้นที่หวงห้าม = Prohibited area
  • พื้นที่น้ำท่วม = Flood area
  • พื้นที่อุบัติเหตุ = Accident prone area

See also[edit]


External links[edit]