Just red and green, much simpler.
Orange is just another green.
Aus has amber but the cycle is different - we only get amber before red, not before green like over here. Also, we don't have the dumb thing where both sides of a junction/cross-roads are stopped to traffic - one direction is moving with cars giving way to any pedestrians crossing in the go direction.
Aus has amber but the cycle is different - we only get amber before red, not before green like over here. Also, we don't have the dumb thing where both sides of a junction/cross-roads are stopped to traffic - one direction is moving with cars giving way to any pedestrians crossing in the go direction.