What is the sequence of traffic lights in north america?

Question

What is the sequence of traffic lights in north america?

Answer 1

Green Light, Yellow Light for 5 sec then Red Light

Answer 2

yellow , red, then green

Answer 3

Green, duration usually based on traffic volume

Yellow, about 3 to 5 seconds

Red, duration dependent on the other conflicting traffic movements

Answer 4

Red

Yellow

Green

Answer 5

The sequence is completely wrong.  They should all be green as I approach them.  Most often I find, however, they are not.

Answer 6

Red

Green

Yellow (for about two seconds to catch those drivers racing the lights ...)

Red