Incoming dirty ships would have to transfer their cargo or be cleaned, which takes time, and cleaning the ships could create delays and port congestion.

FORBES: The Gulf Spill: Now What?

Considerably lower than the adjoining streets, it is hemmed in on one side by a heavily used traffic bridge and by a transfer yard for cargo containers on the other.

ECONOMIST: New architecture

After Endeavour leaves the ISS, Europe's first cargo ship, an unmanned Automated Transfer Vehicle called Jules Verne, will get its chance to dock.

BBC: NEWS | Science/Nature | Endeavour launched from Florida