Width limit (2.5 metres)
Vehicles wider than 2.5 metres must not pass beyond this sign. Drivers of wide loads — including trucks with mirrors or side cargo — should find an alternative route before reaching this point.
Verified as Thai road sign บ.34 from Thai Department of Land Transport sign series on 2026-05-15.
Study guide
Connect this sign to practice
Prohibition signs like Width limit (2.5 metres) carry instant fines on the road and trick wording on the exam. Questions test where the rule starts, where it ends, and which adjacent signs cancel it. Practising it in the question flow keeps those edges fresh.
Now see it in questions.
Spotting Width limit (2.5 metres) in isolation is one thing. Recognising it inside a real exam-style question, among lookalikes and trick wording, is another. The diagnostic mixes it in for you.
