info sign
Controlled-access highway begins
Thai road sign น.12: Controlled-access highway begins. Meaning: Marks the beginning of a controlled-access highway. 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: ป้ายเริ่มต้นทางด่วน
Independent English reference · Source: Department of Highways · Sign น.12
Road response
On the road
Driver action
What should you do?
Recognise that the controlled-access highway begins here and follow the entry controls for that carriageway.
Exam-style scenario
Read the situation
The sign marks the point where your route enters the controlled-access highway.
Best response: Enter the controlled-access highway only through its signed approach and follow the controls that begin here.
Sign comparison
Don’t confuse it
This sign
Controlled-access highway begins
Compare with
Controlled-access highway ends
Key difference
The begins sign marks entry into controlled-access conditions; the companion end sign marks the transition back to an ordinary road.
Put sign knowledge into practice.
Answer exam-style questions about road signs, traffic lights, and lane markings in clear English.
