TRANSPORTATION GEOGRAPHY Open PDF Document Details Document Type Technical Report Publication Date Mar 01, 1954 Accession Number AD0034733 Entities People Edward L. Ullman Harold M. Mayer Organizations University of Washington Tags Communities of Interest Energy and Power Technologies Ground and Sea Platforms DTIC Thesaurus Topics Air Transportation California Canals Commerce Commodities Economic Development Engineering Engineers Geography Inland Waterways Land Transportation Rail Transportation Statistical Data Terrain Transportation United States Waterways