Thai road signs, without the guesswork.
Every Thai road sign that appears on the theory test, in English, grouped by what each shape and colour means. Tap any sign for the full meaning and exam-style wording.
Mascot on a Thai sidewalk pointing at a pole of road signs in different shapes and colours
Prohibition signs · red circle, forbidden action
Stop
Give way
Give way to oncoming traffic
No overtaking
No entry
No U-turn to the right
No U-turn to the left
No left turn
No right turn
No changing lanes to the left
No changing lanes to the right
No right turn or U-turn
No left turn or U-turn
No cars
No trucks
No motorcycles
No trailers
No 3-wheeled motor vehicles
No tricycle
No bicycles
No carts
No agricultural vehicles
No animal-drawn carts
No motor vehicles
No tricycles, bicycles, or motorcycles
No motorcycles or 3-wheeled motor vehicles
No horn
No pedestrians
No parking
No stopping
Checkpoint stop
Speed limit (10 km/h)
Speed limit (20 km/h)
Speed limit (30 km/h)
Speed limit (40 km/h)
Speed limit (45 km/h)
Speed limit (50 km/h)
Speed limit (60 km/h)
Speed limit (70 km/h)
Speed limit (80 km/h)
Speed limit (90 km/h)
Speed limit (100 km/h)
Speed limit (110 km/h)
Speed limit (120 km/h)
Maximum weight 25 tonnes
Weight limit (10 tonnes)
Width limit (2.5 metres)
Height limit (2.5 metres)
Length limit (10 metres)
End of restrictions
Mandatory signs · blue circle, required action
Warning signs · yellow diamond, hazard ahead
Left curve ahead
Curve ahead
Sharp left curve ahead
Sharp curve ahead
Reverse curve ahead
Reverse curve ahead, first to the right
Sharp reverse curve ahead
Sharp reverse curve ahead, first to the right
Winding road ahead, first to the left
Winding road ahead
Crossroads ahead
Y-junction ahead
Side road ahead on the left
Side road ahead
Staggered crossroads ahead
Staggered crossroads ahead
Skewed side road ahead on the left
Skewed side road ahead
Skewed side road ahead on the left
Skewed side road ahead on the right
Roundabout ahead
Roadway narrows ahead on both sides
Roadway narrows ahead on the left side
Roadway narrows ahead on the right side
Narrow bridge ahead
Left lane ends ahead
Right lane ends ahead
Railway crossing without barrier
Railway crossing with barrier
Railway crossing on side road ahead
Width restriction ahead (2.5 metres)
Height restriction ahead (2.5 metres)
Steep climb ahead
Steep descent ahead
Speed hump
Uneven road surface ahead
Dip ahead
Slippery road
Loose road surface ahead
Danger of falling rocks ahead
Opening bridge ahead
Carriageway shifts left ahead
Carriageway shifts right ahead
Added lane ahead
Added lane ahead from the right
Side road merging from left ahead
Side road merging from right ahead
Divided road ahead
Divided road ends ahead
U-turn point ahead on the right
U-turn point ahead on the left
Two-way traffic ahead
Traffic signals ahead
Stop ahead
Give way ahead
Pedestrian crossing ahead
School zone
Animals ahead
Low-flying aircraft ahead
Dangerous zone
No-overtaking zone ahead
Roadway splits ahead
Single chevron right marker
Multiple chevron right marker
Large arrow right marker
Single chevron left marker
Multiple chevron left marker
Large arrow left marker
Hazard chevron marker
Large two-way arrow marker
Hazard marker
Left obstruction marker
Right obstruction marker
Zipper merge ahead
T-junction ahead
City limit, reduce speed
City limit, reduce speed (Thai and English)
Road survey ahead
Road work ahead
Shoulder work ahead
Work-zone detour to the right
Work-zone detour to the left
Right lane closed in work zone
Road damaged, drive with care
Information signs · blue rectangle, traffic information
Now see them in questions.
Knowing every sign in isolation is one thing. Recognising them inside a real exam-style question is another. The diagnostic mixes them in for you.
