What does the following safety sign mean?
💡 Hint
A one-way sign shows the permitted direction with a straight arrow and the word 'one-way' in a rectangle (Annex 6 of the Enforcement Rule). Compare its shape with the bent arrow on a round sign (turning instruction) and the diagonal arrow (side-passing) to tell them apart.
Answer: ①
Explanation
This sign, with a straight arrow pointing right above the words '일방통행' (one-way), indicates a one-way road on which vehicles may proceed only to the right (Enforcement Rule Annex 6, No. 326). It is installed on both sides of the road at the entrance and at necessary points along a one-way road. The turn-right sign is round with a bent arrow, and the keep-right sign has a diagonal arrow.
Legal basis: 도로교통법 시행규칙 별표6 326 일방통행표지