DSCF1015 by
AviationMetalSmith, on Flickr
pole base
DSCF1016 by
AviationMetalSmith, on Flickr
City block flash
DSCF1017 by
AviationMetalSmith, on Flickr
Camera with two lenses (stills and video?)
DSCF1020 by
AviationMetalSmith, on Flickr
Radar (on it's own pole)
All these devices are wired. Yes, I believe the red light could be triggered by speeders.
15 years form now, self-driving cars will be common on America's roads.