CIVIL AERONAUTICS BOARD Domestic common carrier intercity passenger travel market scheduled and nonsched uled services of airlines, buses, railroads, and waterways, 1951-63 1 ICC data 1957-62. National Association of Motor Bus Operators (NAMBO) data 1951-56. To make the data for 1951-56 comparable with data for 1957-62, NAMBO estimated the former years by applying certain percentage to existing ICC data for those years. 2 Electric railway figures are estimated by ICC. NOTE.-Airlines: Domestic operations of certificated route and supplemental air carriers. Helicopter intra-Alaska, and intra-Hawaii carriers are excluded. Buses: Regular-route, charter, and special-service travel in revenue service on both interstate and intra state schedules; schoolbus travel not included. Commutation traffic is excluded. Railroads: All classes, including electric railways. Commutation traffic is excluded. Waterways: Inland and coastal waterways. Source: Form 41 and other reports to the CAB; Interstate Commerce Commission; and National Associa tion of Motor Bus Operators. Chart F NUMBER OF AIR AND SEA PASSENGERS TRAVELING ON U.S. FLAG CARRIERS BETWEEN THE UNITED STATES AND FOREIGN COUNTRIES/ Years Ended June 30, 1947 To June 30, 1963 Number of passengers (000) 3400 1963 Pepared by El Aeronautics Board February 1964 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 |