info sign
National highway route marker
Thai road sign น.19 — National highway route marker. Meaning: Identifies a national-highway route number; the displayed number is an example. Learner-manual coverage: this identity is shown in the current DLT car-driver learner manual. Inclusion does not mean it appears in every theory test.
Thai name: ป้ายหมายเลขทางหลวง
Independent English reference · Source: Department of Highways · Sign น.19
Road response
On the road
Driver action
What should you do?
Match the displayed national-highway number with your planned route and follow the corresponding direction signs.
Exam-style scenario
Read the situation
The route number on this shield matches the national highway named in your directions.
Best response: Continue following this numbered national highway and use later direction signs to stay on it.
Sign comparison
Don’t confuse it
This sign
National highway route marker
Compare with
Rural road route marker
Key difference
The national-highway shield carries a national route number; the rural-road marker combines a different badge with province letters and a rural-road number.
Put sign knowledge into practice.
Answer exam-style questions about road signs, traffic lights, and lane markings in clear English.
