Check out this intersection in StreetView. all four cameras on the light poles are looking across the intersection into the windshield...
https://www.google.com/maps/@39.8556591,-85.9914965,75m/data=!3m1!1e3
Yes. We have those here in CA, too. A network of them placed at various locations tied into online traffic monitoring centers. Many are accessible in your browser by John Q. Public and can be used by anyone to check traffic conditions anytime day or night (assuming there’s visibility).
The odd-looking instruments on a couple of the lower arms are emergency pre-emptors that flip the lights to give emergency traffic more immediate right-of-way.
http://www.advancedtraffic.com/products/gtt/opticom-is/Opticom_IR_Brochure.pdf