Home/American Shipper/U.S. intermodal volumes on the upswing American ShipperIntermodal U.S. intermodal volumes on the upswing FreightWaves Staff · Friday, July 26, 2013 Facebook Twitter/X LinkedIn U.S. carloads fell by 3 percent, year over year, to 277,933 units, and intermodal volume rose by 2.8 percent to 253,424 units for the week ending July 20, according to the Association of American Railroads.