Normally, yes. On my ride home, I have a busy cross street - but the road I am on has almost no traffic (which is why I use it) Sometimes it'll trigger. Sometimes a car will come up and right turn which it senses and starts changing but when they leave it goes back to red. I have resorted to pushing the ped crossing button if the traffic is too steady, otherwise I wait for a break and cross or a car will show up.