The technical note documents a study to develop analytical techniques for use in optimizing the locations and characteristics of inland centers to facilitate the flow of containerizable marine cargo. Such centers would perform the consolidation of small lots of break-bulk general cargo into container loads for export; for the reverse flow, they would carry out the handling and unloading of import containers for cargo distribution. Performance of these functions inland, rather than exclusively at or near the ports involved, should result in savings to the shipping community from transporting cargo over land in full containers rather than as more costly less-than-carload lots. A mathematical model and associated solution technique have been developed, implemented in a digital computer program to a point compatible with the kinds of information available, and exercised using the body of data and background material accumulated during the fact-finding phases of the study. (Author).