443. Under the Road Traffic Act, which of the following is not an appropriate action on the part of a driver if the car is unable to operate due to a breakdown on the expressway at night?

1. ①A red flashing signal, electric lantern or spark signal that can be identified from 500 m in all directions must be installed.
2. ②When installing a sign, it must be installed in a location where the driver of a vehicle approaching from the rear can see it.
3. ③The driver must take necessary measures, such as moving the vehicle off the expressway.
4. ④The safety tripod sign must be installed 200 m from the point where the broken-down vehicle is located.

Source KoROAD Safe Driving Integrated Civil Service, Driver's License Written Test Question Bank [English] (effective 2026-03-09), post 1923, Download the source PDF source PDF page 126 (checked on 2026-09-04). The question and answer are the KoROAD text as published. The buttons and notes on this page were written by the developer and have not yet been checked by a native speaker. The questions and answers themselves are the official KoROAD text.