warning sign
Skewed side road — ahead-right branch
Thai road sign ต.20 — Skewed side road — ahead-right branch. Meaning: Warns of a skewed side-road layout whose branch extends ahead-right, shown in the upper-right of the symbol. 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.20
Road response
On the road
Driver action
What should you do?
Warns of a skewed side-road layout whose branch extends ahead-right, shown in the upper-right of the symbol. Reduce speed before the signed condition and keep enough space to respond safely.
Exam-style scenario
Read the situation
The angled branch shown ahead-right identifies where turning traffic may cross your path.
Best response: Approach slowly and monitor the ahead-right branch for vehicles crossing or joining the main line.
Sign comparison
Don’t confuse it
This sign
Skewed side road — ahead-right branch
Compare with
Skewed side road — ahead-left branch
Key difference
Its branch extends ahead-right from the main line; the companion reverse layout extends ahead-left.
Put sign knowledge into practice.
Answer exam-style questions about road signs, traffic lights, and lane markings in clear English.
