If I were...: If I were a traffic light

If I were a traffic light, i would think about why the colour of light on me can only be red yellow or green.

"Red Light, Red Light,What do you say ?

I say stop, stop right away

Yellow Light Yellow Light,

What do you mean ?

I mean wait, till the light is green

Green Light, Green Light,

What do you say ?

I say go, go right away."

"Red Light Red Light" - Shemaroo Kids

So if i have no light and turn black, what will the people do? Just keep crossing or wait until the light shows again?

If I were...