Censuses of Transportation
The census of transportation was undertaken for the first time on a national basis in 1963. Prior to 1963, some information on transportation was compiled and published in connection with the decennial censuses of 1880 and 1890. Also, during the early part of the 1900s, the Bureau of the Census published reports at intervals covering certain aspects of transportation. The 1967 Census of Transportation, for the first time, made it possible to measure changes over a period of time (1967 comared with 1963). [source: Bureau of the Census Catalog of Publications, 1790-1972. 1974, p. 482.]