The amount of freight carload traffic of U.S. railroads dropped 6.2% in the week ending Mar. 3 compared to year-ago levels, but intermodal activity gained 6% in the same period, according to the Association of American Railroads. "Intermodal traffic was up for the 27th straight month, while carloads of a wide range of commodities -- lumber, chemicals, petroleum, paper, steel and more -- saw increases in February," said John Gray, AAR senior vice president. "Time will tell, but we're hopeful it's a sign of broad-based improvement in economic conditions.
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