Why do traffic lights use red lights to prohibit traffic?
The red light has a long wavelength, is capable of penetrating the air, and is more attractive than other signals, so it is a signal to prohibit traffic.
Traffic lights are composed of red lights, green lights and yellow lights. Red lights mean no traffic
green lights are allowed to pass, and yellow lights indicate warning.
The traffic signal lamp with a red light that prohibit the use of scientific basis
