The good roundabouts have what are called truck aprons, usually a wide ring of pavers or pavement inside the circle. That makes it easier for a large truck to negotiate the roundabout, since it can utilize the apron.
Yes, this roundabout has those pavers. I have no idea what that truck was hauling; it looked to be the size of a Nuclear Reactor!
Maybe it was, since the Libtards won’t allow fracking or any sort of mining in our state. ;)