Possibly. The box will probably have the power and transmission related hardware in it and I would guess that the small silver bits are cameras especially as there are angled plastic shields above them, presumably to keep dripping water away from the lens?
If you enlarge the pic the 'lenses' aren't glass and have multiple emitters and those are battery pack/data logger cases that don't have any comms, so I think these are infra-red traffic loggers. Their aim varies slightly, presumably to monitor two or more lanes.