I don’t understand how they work, what they’re hooked up to and how they know when to turn from green, to yellow, to red. Are they timed? Is there a sensor, perhaps a small man hiding in the pole controlling it?
In: 7
Not what you asked specifically, but interesting nonetheless. A light stays yellow one second per every 10 miles per hour of the posted speed limit. So, on a 45 mph road, the light will be yellow for 4.5 seconds.
That knowledge has been very beneficial to me at times when I’m trying to decide to gun it or stop.
Latest Answers