What lights to use when crossing an arch bridge at night?

[DeGavin]

According to the regulations for the implementation of road traffic safety, when a motor vehicle passes through sharp curves, slopes, arch bridges, crosswalks, or intersections without traffic signal control at night, it should alternately use high and low beams twice as a signal. The following is an introduction to the relevant content: 1. Horn signal: When a motor vehicle approaches sections that affect safe sight distance, such as sharp curves or the top of slopes, or when overtaking or encountering emergencies, it should slow down and sound the horn as a signal. 2. Driving at night: The main impact of driving at night is poor visibility, so lights must be used when driving at night, and there are many considerations for the use of lights at night. Generally, low beams are sufficient for driving at night. Turn signals must be used when turning. If encountering a road with poor lighting or no lighting facilities ahead, high beams should be used. When meeting another vehicle, if low beams were already in use, no adjustment is needed; if high beams were in use, they should be switched to low beams in advance.