Home/American Shipper/U.S. sees mixed rail results in March American ShipperIntermodal U.S. sees mixed rail results in March FreightWaves Staff · Tuesday, April 09, 2013 Facebook Twitter/X LinkedInIn March, intermodal traffic rose by 0.5 percent, year over year, to 933,208 containers, while the number of carloads declined by 0.5 percent to 1.117 million when compared to March 2012, Association of American Railroads said.