You are about to enter a road with this safety sign. Which vehicle may not pass?
💡 Hint
A sign with 'm' between left and right arrows limits width, and height has nothing to do with it (Annex 6 No. 222 of the Enforcement Rule). For loaded vehicles, note what is included besides the body width, then compare each vehicle's width.
Answer: ③
Explanation
This sign, 2.2 m between arrows pointing inward from left and right, restricts vehicles wider than 2.2 meters including the load (Enforcement Rule Annex 6, No. 222). A truck 2.4 meters wide with its load may not enter. Height is irrelevant to this sign, so a bus 3 meters tall and 2.0 meters wide may pass.
Legal basis: 도로교통법 시행규칙 별표6 222 차폭제한표지