Which statement about using an automobile road is correct?
Expressways and automobile roads are grouped together as 'expressways, etc.' and share the same access restrictions (Articles 57 and 63 of the Road Traffic Act). Vehicles other than motor vehicles and pedestrians may not use or cross them, and for two-wheeled vehicles only emergency vehicles are excepted, so first check whether each vehicle in the options is a 'motor vehicle'.
Answer: ③
Explanation
Article 57 of the Road Traffic Act groups expressways and automobile roads together as "expressways, etc.", and Article 63 bars all vehicles other than motor vehicles (for two-wheeled vehicles, only emergency vehicles) and pedestrians from travelling on or crossing them. A motorcycle therefore may not enter an automobile road. The same rule applies to automobile roads, so ordinary two-wheeled vehicles, pedestrians walking on the shoulder and bicycles are all prohibited.
Legal basis: 도로교통법 제57조, 제63조