I find myself hoping that in CSII Colossal Order will get away from the prefab method of cargo stations and instead allow systems with upgradeable roads, as well as more than one entry point. Honestly the best cargo station thus far for me has been the Airport Cargo Terminal Station because it has two entries and exits. (Though mystifyingly it doesn't work on the interior airport networks)

There's this chaos with long tailback here:
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=3004906491

And the better method here with the Airport Cargo Terminal (part of the Airports DLC).
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=3004906987

Hopefully lessons will be learned from this and having us get more freedom with the connecting roads.