On a road without variable speed limit signs, which TWO are cases in which you must drive at a speed reduced by 50/100 of the maximum speed? Select TWO
💡 Hint
There are two levels of speed reduction: 20/100 when the road is wet or there is a little snow, and 50/100 when visibility is very poor, the road is icy, or there is a lot of snow (Article 19(2) of the Enforcement Rule). For snow, the dividing line is whether it is 20 millimeters OR MORE or LESS than that.
Answer: ②, ③
Explanation
Article 19(2), item 2 of the Enforcement Rule requires a 50/100 reduction of the maximum speed when heavy rain, heavy snow or fog limits visibility to within 100 meters, when the road is frozen, or when 20 millimeters or more of snow has accumulated. A road wet from rain and snow under 20 millimeters fall under item 1 of the same paragraph, which requires only a 20/100 reduction.
Legal basis: 도로교통법 시행규칙 제19조 제2항