The upright looks like it has a couple line of site antennas and a power/network box probably. Looks like it is running/networking the device pointed downwards. That device likely has a series of sensors for detecting vehicle traffic. This setup helps track traffic for traffic control.
Those circles are probably too small for normal ISM comms links, they are either radar cans or microphones is my guess. The fact that they both have two feeds makes me assume radar.