What is the purpose of laser lights on highways?

[OJack]

The purpose of laser lights on highways is to serve as warning signals. Here are precautions for driving on highways: Check your vehicle in advance: Focus on fuel, engine oil, tire pressure, lights, etc., and plan your route. It's advisable to have a driver with at least 3 years of driving experience accompany you. Pay attention to speed limits: The minimum speed on highways should not be less than 60 kilometers per hour, and the maximum speed should not exceed 120 kilometers per hour. Maintain a safe distance: Control your speed and try to keep a considerable distance from the vehicle ahead. Change lanes correctly: Avoid crossing multiple lanes at once. Before changing lanes, carefully observe traffic conditions, use turn signals, and honk to alert other vehicles.