Stoplight camera? How much do they record

Question

Do they only record when someone runs a light? Do they take ongoing photographs?

Answer 1

ive gotten 2 so far

Answer 2

WELL...most of the things you see in intersections that look like camers are not. they are sensors for night time.. They look at traffic flow and computers make decision on how long to keep the lights green!

Answer 3

Only you plate number. That's the most important thing.