RII was involved as one of the experts for 4 rail rate cases brought before the United States Surface Transportation Board (STB). The cases were filed on behalf of 3 shippers: Dupont, Sunbelt Chlor-Alkali, Seminole Electric and Total Chemicals, charging several Class I railroads with charging excessive rates that were regulated by the STB at the time. Shippers had to develop complete stand-alone operations for these Class I railroads for handling their traffic to prove that railroads were charging higher revenue to cost ratios than allowed. RII’s assignments involved costing unit train movements, examining operational costs, carloads and traffic volumes, developing optimum operations, necessary staffing and related personnel and administrative costs for each operation.