Intermodal continues to be the long-term growth engine for the railroad industry. It accounts for 43 percent of Class I unit volumes and may surpass 50 percent within three years. Intermodal revenues accounted for 22 percent of Class I revenues in 2013, outdistancing 20 percent coal revenues.
Norfolk Southern is a good example of how intermodal has changed the rail industry. NS has evolved from dependence on coal 20 years ago to become the second largest intermodal carrier by v