RED< YELLOW< GREEN

Traffic light red,

Traffic light green,

Traffic light yellow;

Red says "NO!"

It's the other side's turn.

You must be patient 

And courtesy learn.

Yellow says, "SLOW!"

It soon will be red.

You need to be cautious

Green Says "GO!"

Your way is now clear.

When you take your turn There's no accident here!

 

Remember what the traffic lights say"

RED says NO!

YELLOW says SLOW!

GREEN Says GO!

And not speed ahead

What do they mean?