Why should high and low beams be alternated when passing through a crosswalk?

1 Answers
SanEliza
07/30/25 3:57am
Alternating between high and low beams when passing through a crosswalk is intended to alert pedestrians. At night, the noticeable shift between bright and dark when switching between high and low beams serves as an effective warning, making pedestrians aware of an approaching vehicle. Regarding the use of high and low beams during nighttime driving, the Implementation Regulations of the Road Traffic Safety Law of the People's Republic of China stipulate the following: 1. Article 48: When meeting another vehicle at night, drivers must switch to low beams at least 150 meters from the oncoming vehicle. On narrow roads or bridges, low beams must be used when meeting non-motorized vehicles. 2. Article 58: When driving at night on roads without streetlights, under poor lighting conditions, or in low-visibility situations such as fog, rain, snow, dust, or hail, vehicles must turn on their headlights, clearance lights, and taillights. However, high beams must not be used when following another vehicle at close range. During foggy conditions, vehicles must also turn on their fog lights and hazard warning flashers. 3. Article 59: At night, when passing through sharp curves, slopes, arch bridges, crosswalks, or intersections without traffic signals, vehicles must use alternating high and low beams to signal their presence.
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