Temporary traffic-control sign
Two lanes shift right
Thai road sign ตก.10 — Two lanes shift right. Meaning: Two traffic lanes shift to the right through the work zone. 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: ป้ายเตือนเบี่ยงเบนการจราจร
Independent English reference · Source: Department of Highways · Sign ตก.10
Road response
On the road
Driver action
What should you do?
Two traffic lanes shift to the right through the work zone. Reduce speed before the signed condition and keep enough space to respond safely.
Exam-style scenario
Read the situation
Both live lanes bend right together, so neither lane ends at the first shift.
Best response: Stay in the current live lane as both lanes shift right together through the work zone.
Sign comparison
Don’t confuse it
This sign
Two lanes shift right
Compare with
Traffic shifts right
Key difference
Two live lanes move right together; the single-lane shift sign shows only one traffic path.
Put sign knowledge into practice.
Answer exam-style questions about road signs, traffic lights, and lane markings in clear English.
