The Association of American Railroads (AAR) today reported increased U.S. rail traffic for November
2013 over November 2012. Intermodal traffic in November totaled 1,007,549 containers and trailers,
up 7.8 percent (73,004 units) compared with November 2012. The weekly average of 251,887
intermodal containers and trailers per week in November 2013 was the highest weekly average for any
November in history. Carloads originated in November 2013 totaled 1,145,353, up 1.3 percent
(14,931 carloads) compared with the same month last year. Excluding coal, U.S. carloads were up 5.3
percent, or 34,988 carloads, in November 2013 compared with November 2012. Excluding coal and
grain, U.S. carloads were up 3.3 percent, or 19,303 carloads, in November.
“U.S. rail traffic in November 2013 saw a big decline in coal carloads that was more than offset by gains
in carloads of grain and petroleum products,” said AAR Senior Vice President John T. Gray. “Carload
traffic continues to be consistent with an economy that’s growing at a moderate pace. Meanwhile, rail
intermodal volume was extremely strong in November, demonstrating the tremendous value that
intermodal has become for rail customers.”
Consider each of the following statements. Does the information in the three sources support the inference as stated?
"Increased rail carloads of coal was seen as a sign of a growing economy in 2013."
"Comparing rail carloads for all commodities in the years of 2009 through 2013, summer traffic tended to have the least year-to-year variation of any of the seasons in the five years documented."
"Peak intermodal traffic in 2013 was at least 50% higher than peak intermodal traffic in 2009."