Intermodal is the transfer of products using multiple forms of transportation — trucks, railroads or ocean carriers. In 2012, intermodal container volumes rose by 5.9 percent over the previous year with 13.1 million moves, according to the Intermodal Association of North America’s Intermodal Market Trends & Statistics report. That number surpassed the previous benchmark year of 2007 by 9.8 percent. For the third straight year, domestic containers experienced the highest growth rate – 12.2 percent over 2011 – with volumes topping five million for the first time.