warning sign
Skewed side road ahead
Thai road sign ต.18 — Skewed side road ahead. Meaning: A side road joins the main road ahead at an angle. 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: ป้ายเตือนทางแยกรูปแบบต่าง ๆ
Independent English reference · Source: Department of Highways · Sign ต.18
Road response
On the road
Driver action
What should you do?
Reduce speed and be prepared for vehicles entering from the side.
Exam-style scenario
Read the situation
Traffic can enter from a diagonal road on the right, making its approach harder to judge.
Best response: Reduce speed and watch the diagonal right-side approach for traffic entering at an unusual angle.
Sign comparison
Don’t confuse it
This sign
Skewed side road ahead
Compare with
Skewed side road ahead on the left
Key difference
The oblique branch meets from the right; the mirrored sign places the angled approach on the left.
Put sign knowledge into practice.
Answer exam-style questions about road signs, traffic lights, and lane markings in clear English.
