Program Information TTX is a railcar pooling company. Founded as Trailer Train in 1955 by the Pennsylvania Railroad, the subsidiary invested in a new technology ??? flatcars that would haul highway trailers. More rail carriers soon bought stock as well, and in 1974 they proposed to establish the distribution principles under a ???pooling agreement??? approved by the federal Interstate Commerce Commission (ICC). Pooling means that railroads share the railcars bringing several benefits. First, railroads have the flexibility to respond to changing market conditions because the fleet is already established. Second, they do not have to waste resources switching out and returning empty railcars, eliminating supply chain inefficiencies. Third, the capital burden on railroads is reduced because TTX buys the cars, lowering operating costs, and reducing the industry???s risk. All of these help keep the railroads competitive to the benefit of the shipping public.