Traffic lights use red lights as stop signals, because red light has a much stronger penetrating ability than green light, which allows drivers to see and react in advance.

It turns out that red lights still have such a powerful knowledge!
Traffic lights use red lights as stop signals, because red light has a much stronger penetrating ability than…
Traffic lights use red lights as stop signals, because red light has a much stronger penetrating ability than green light, which allows drivers to see and react in advance.
It turns out that red lights still have such a powerful knowledge!