"Chicago is unique among the nations big cities as a hub to three major carriers: United Airlines and American Airlines at O'Hare International Airport and Southwest Airlines at Midway Airport."
"There are 60 carriers flying non-stop from Chicago to 192 cities, compared with 8 airlines and 31 non-stops from Indianapolis, 113 carriers and 61 non-stops from St. Louis, 7 airlines and 17 non-stops from Des Moines, Iowa, and 9 carriers and 49 non- stops from Milwaukee."
"Illinois also is the country's top rail hub, with 7,313 miles of track seved by 42 railroads according to the Assn. of American railroads in Washington, D.C. Indiana has 4,475 miles seved by 42 carriers; Missousi has 4,050 miles and 17 railroad companies; Iowa has 3,925 and 16 carriers, and Wisconsin has 3,510 of track seved by 10 operators."
Crain's Chicago Business 10/17/11
"There are 60 carriers flying non-stop from Chicago to 192 cities, compared with 8 airlines and 31 non-stops from Indianapolis, 113 carriers and 61 non-stops from St. Louis, 7 airlines and 17 non-stops from Des Moines, Iowa, and 9 carriers and 49 non- stops from Milwaukee."
"Illinois also is the country's top rail hub, with 7,313 miles of track seved by 42 railroads according to the Assn. of American railroads in Washington, D.C. Indiana has 4,475 miles seved by 42 carriers; Missousi has 4,050 miles and 17 railroad companies; Iowa has 3,925 and 16 carriers, and Wisconsin has 3,510 of track seved by 10 operators."
Crain's Chicago Business 10/17/11