Total combined U.S. traffic for the week ending June 22 was up 1.2%, AAR said.
Four of the 10 carload commodity groups AAR measures on a weekly basis posted increases compared with the same week in 2012, led once more by petroleum and petroleum products, up 37.2%. Commodities showing a decrease compared with the same week last year included grain, down 23.3%.
Canadian freight carload volume for the week rose 1.5% above the levels in the comparable 2012 week, while Canadian intermodal also did well, up 2.1%. Mexican freight carload volume scored a gain of 6.8% for the week, though Mexican intermodal volume declined 2.8%.
Combined North American freight carload volume for the 25 weeks of 2013 on 13 reporting U.S., Canadian, and Mexican railroads was down 0.4% measured against he comparable period in 2012. Combined North American intermodal volume, by contrast, rose 3.9%.