How long does the red traffic light stay on before it changes to yellow & green?

Answer 1

First of all, a red light NEVER changes to yellow, nor does a yellow ever change to green. So, as written, your question is impossible to answer.

Second of all, everyone is programmed differently, depending upon the individual needs of the traffic at its particular location. It really is a science, figuring out how to time traffic lights with one another for the optimum flow of traffic.

Answer 2

I found this at the link below - hope it helps:

How long are the red, yellow, and green lights set for at traffic signal lights?

They vary from signal to signal and also based on the day of the week and the time of the day. You will wait longer at a red light during rush hour traffic than you would wait at the same light during lighter traffic times. The times are computed by traffic engineers based on collected data from the intersection/street they control. The object being to get the best traffic flow possible.

Answer 3

It definitely depends on the light, location, etc. Some traffic lights stay red for a couple of minutes or so for some lesser travelled streets and are green for the intersecting street that has higher traffic.
Some have eyes installed that are sensitive to the existing traffic flow and change depending on traffic volume.
Sorry, there's no set answer.

Answer 4

Traffic light switching times vary from state to state, and from city to city depending on traffic density. CA and many states are shifting to priority traffic getting the longest green light times. Triggered or monitored lights can have about 30 seconds of red light time as an absolute minimum.

Answer 5

As long as it's programmed to stay red in the case of strictly timer type lights, or until it's triggered to change in those with sensors. So there is no definitive answer.

Have a look here. http://auto.howstuffworks.com/question234.htm

Answer 6

I know in El Paso, on certain streets it can take almost 1.5 to 2 minutes with no traffic on cross intersections!!

Answer 7

it depends.if your going through,ill say high street,then it stays on longer then a by road.they judge it from how much traffic on each roads.

Answer 8

attempt taking it to the police chief and tell him/her the story and spot if the administrative will void it for you this is the only way i understand that may not value you any funds if the guy says no

Answer 9

I am not sure but I know it's more than one second and less than one hour. I think it depends if Krispy Kreme is open.

Answer 10

60 seconds