[dpkirchner]

I don't know about NYC but it's common to see at least 4 cameras per lighted intersection where I am (small city in the PNW). They're replacing the loops used to sense vehicles, but I'm pretty sure they're also remotely accessible.

[ajma]

Not only are they remotely accessible. There publicly accessible (not all of them) https://kingcounty.gov/en/dept/local-services/transit-transp...

[lotsofpulp]

I don’t think those are necessarily recording cameras. They could just be radar or video vehicle detectors to let the light know if a car is waiting.