Thailand Speed Limit
Motorways
Motorways or expressways are restricted to areas around the Bangkok area.
- Traffic can be very heavy especially at peak times from 07:00-10:00 and 16:00-19:00
- Tolls are charged for each section of the motorway and they differ depending on the distance travelled
- Speed limits are signposted and are usually 120 Km/h for cars although in some areas the limit may be reduced to 90 Km/h
Highways
The highways that join all the provinces throughout Thailand are usually well constructed and easy to follow.
The speed limit is signposted and is usually 90 Km/h for cars although in some areas there will be signposts indicating that the limit is increased to 100 Km/h or 120 Km/h.
Suburban streets
Most suburban streets are similar to those in Europe and the rest of the world. Speed limits, marked by signposts, are 50 Km/h to 60 Km/h.
Small lanes
Some small lanes have speed humps to reduce speed and dangers to pedestrians. Check all signs for changes to the usual speed limits of 60 Km/h.
จาก http://bangkok.angloinfo.com/countries/thailand/driving.asp