Originally Posted by C4llyT
Originally Posted by RS LOZWORTH
Im a traffic signal engineer and they either have loops in the road to detect vehicles or microwave detectors on top of the heads that detect vehicle moving towards them- these are used on temp lights
What's with one's on a major road, that at 4am go red, and just as you stop go green, when there's no traffic at the minor road?
when there is no traffic at night the lights auto go back to red as part of the config most of the time, in theory they should change back to green when you get there unless you are SPEEDING
