Often I have noticed that many “strategic” traffic lights in Kuwait don’t work on timer, but rather does its job with the help of sensors and I always suspected the rectangular shaped thingys embedded in the tar were the culprits. Apparently, It turns out that these thingys are called inductive loops.

Link: more about inductive loops

Oh and traffic lights are not as simple as regular lights  . They can be more complex.

Link: more on traffic light sequences 

I hope I have given you something to think about the next time you are stuck in a jam and starring at that beautiful box to turn Green 😉

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