How to set up warning signs on expressways?

Put them in the same lane, with a distance of150m from the oncoming direction. (Walk about 200-250 steps)

Otherwise, points will be deducted, which will easily lead to secondary accidents.

The Road Traffic Safety Law of the People's Republic of China stipulates that:

Article 52 When a motor vehicle breaks down on the road and needs to be stopped for troubleshooting, the driver should immediately turn on the danger warning flash and move the motor vehicle to a place that does not hinder traffic. If it is difficult to move, you should turn on the danger warning flash continuously, and take measures such as setting warning signs in the direction of incoming vehicles to expand the warning distance, and call the police quickly if necessary.

Article 68 When a motor vehicle breaks down on an expressway, it shall be handled in accordance with the relevant provisions of Article 52 of this Law. However, a warning sign should be set at a distance of150m from the direction of the faulty vehicle, and the personnel on the vehicle should be quickly transferred to the right shoulder or emergency lane, and an alarm should be given quickly.

If a motor vehicle fails or has a traffic accident on the expressway and cannot run normally, it shall be towed by a rescue vehicle and a wrecker.