prohibition sign
Speed limit (10 km/h)
Thai road sign บ.32-10 — Speed limit (10 km/h). Meaning: Drivers must not exceed 10 km/h on the road section ahead. Catalog status: additional official road-sign reference.
Thai name: ป้ายจำกัดความเร็ว
Independent English reference · Source: Department of Highways · Sign บ.32-10
Road response
On the road
Driver action
What should you do?
Reduce speed to 10 km/h or less before entering the controlled section.
Exam-style scenario
Read the situation
Your speedometer reads 18 km/h as you pass a 10 km/h sign at the entrance to a slow-traffic area.
Best response: Brake smoothly from 18 km/h and enter the slow-traffic area at no more than 10 km/h.
Sign comparison
Don’t confuse it
This sign
Speed limit (10 km/h)
Compare with
Speed limit (20 km/h)
Key difference
The numeral 10 sets the lower maximum; the otherwise similar red-ring sign with 20 permits up to 20 km/h.
Put sign knowledge into practice.
Answer exam-style questions about road signs, traffic lights, and lane markings in clear English.
