How to program a traffic light

Answer 1

Are you looking for actual code or the process?

Answer 2

Are you talking about a real traffic light or a digital one?

Answer 3

real traffic light

Answer 4

actual code it an assignment

Answer 5

Zamokuhle Miya first: Search the programming language they're using, then learn about that and learn a lot about algorithms / AI. Then program it. The whole process can take a couple of years.

Otherwise in JS you can visualize a traffic light and use intervals to change its color