warning sign
Right lane ends ahead
Thai road sign ต.27 — Right lane ends ahead. Meaning: The right lane ends ahead. 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: ป้ายเตือนช่องจราจรปิด
Independent English reference · Source: Department of Highways · Sign ต.27
Road response
On the road
Driver action
What should you do?
Drivers in that lane should merge safely before the lane closes.
Exam-style scenario
Read the situation
The right lane ends beyond the sign while another vehicle occupies the lane to its left.
Best response: Adjust speed and merge from the ending right lane behind or ahead of the vehicle on the left when safe.
Sign comparison
Don’t confuse it
This sign
Right lane ends ahead
Compare with
Left lane ends ahead
Key difference
The right lane line terminates and must merge left; the mirrored sign shows the left lane ending instead.
Put sign knowledge into practice.
Answer exam-style questions about road signs, traffic lights, and lane markings in clear English.
