Carloading

From 1940 to 1946, carloadings of grains ranged from about 28 to 35 percent of total shipments of products of agriculture.

In 1955, for example, 32 railroads reported 168,150 piggyback carloadings; in 1959 50 roads loaded 415,156 cars; [...]. T.O.F.C. still accounts for little more than 2 per cent of all U.S. carloadings but industry experts expect that percentage to reach between 25 and 50 per cent within the foreseeable future.