You are driving a truck with a 5-tonne load capacity on a three-lane (each direction) expressway section designated and announced by the Commissioner General of the National Police Agency with a maximum speed of 120 km/h. What is this truck's maximum speed? (The weather is clear.)
The maximum speed on an expressway depends on the number of lanes each way, whether the section is designated and announced by the Commissioner General of the National Police Agency, and the type of vehicle (Article 19(1)3 of the Enforcement Rule). Check whether the high figure for a designated section applies to every vehicle, or whether trucks over 1.5 tonnes load capacity have a separate limit.
Answer: ②
Explanation
Under Article 19(1)3(c) of the Enforcement Rules, on sections of expressways with two or more lanes each way designated and announced by the Commissioner General, the maximum speed is up to 120 km/h, but trucks over 1.5 tonnes load capacity, special vehicles, hazardous-material carriers and construction machinery are limited to 90 km/h. 80 km/h is the limit for these vehicles on ordinary (non-designated) expressways with two or more lanes each way.
Legal basis: 도로교통법 제17조, 시행규칙 제19조 제1항 제3호 다목