5 ms·
I see them everywhere in Metro Atlanta. You can tell because there’s what looks like a little camera above each direction facing traffic light.
by itsmartapuntocm 1y ago
I see them everywhere in Metro Atlanta. You can tell because there’s what looks like a little camera above each direction facing traffic light.
- mh- 1y agoIf you're talking about the ones I think you are, those are preemption signal devices [0] for emergency vehicles. [0]: https://ops.fhwa.dot.gov/publications/fhwahop08024/chapter9.htm https://ops.fhwa.dot.gov/publications/fhwahop08024/chapter9....
- itsmartapuntocm 1y agoNo these aren’t optical sensors like those, they’re full blown cameras. Cobb County at least on their website says they use camera sensors as well as buried induction loops.