Sea
As one of the three major shipping ports on The American West Coast, the Port of Oakland is the largest seaport on San Francisco Bay and the fourth busiest container port in the United States. It was one of the earliest seaports to switch to containerization and to intermodal container transfer, thereby displacing San Francisco which never modernized its old waterfront. One of the earlier limitations to growth was the inability to transfer containers to rail lines, all cranes historically operating between ocean vessels and trucks. In the 1980s the Port of Oakland began the evaluation of development of an intermodal container transfer capability, i.e. facilities that now allow trans-loading of containers from vessels to either trucks or rail modes.
(Source: Wikipedia.org)
