What is the purpose of the green laser lights on highways?

[DiJack]

The green laser lights on highways are anti-fatigue laser lights. The purpose of turning on these anti-fatigue laser lights on highways at night is to remind drivers to stay alert and avoid drowsy driving. The green laser beams have a long irradiation distance and are particularly noticeable at night. These laser lights come in two forms: continuous and strobe, with a range of up to 2 kilometers, effectively stimulating the driver's brain. Laser lights are just one of the many measures to prevent drowsy driving on highways. Other common measures include flashing lights and reflective strips, which also serve anti-fatigue purposes. However, preventing fatigue ultimately requires raising drivers' awareness of safe driving and ensuring sufficient rest time.