It's a problem being solved at the same level of thinking that created it.
Alternatively: An Hyperloop sized to accommodate standard shipping containers, in the median. In train. No flat-car, just an air-tight puck that clips into the corner lifting lugs.
The space inside your typical cloverleaf would become a round-house that could switch 3 or 4 containers as a block.
All watched over by machines of loving grace.*
*Richard Brautigan