In recent years rail roads have been experiencing a boom in order to keep up with increasing demand from shippers. The infrastructures are being upgraded and capacities are increasing due to demand. Struggles this past year at the Southern California Ports, emphasized the need for diversity in a transportation plan. Intermodal transportation offers an important opportunity to lower shipping costs while cutting carbon emissions. Transporting a medium- to long-distance load via intermodal costs 15 to 40 percent less than moving the same load by truck. And studies show that shipping by rail is three to four times more fuel-efficient – and therefore more environmentally friendly – than shipping over the road (OTR). Although transportation managers often shied away from rail in the past, many companies today make Intermodal a key element of their transportation strategies.