A visible sign of the nation's economic health can be seen within a city block of each other in Cedar Rapids, Iowa. For several months two large trucking firms based in 42N country, CRST International and Westside Transport Systems have parked a large number of semi-trailer truck fleets at their respective corporate headquarters. At no time in recent memory have these two regional icons been so concentrated in their idle behavior. At CRST, the maintenance garage is completely filled with trucks being tuned. A positive sign in recent weeks is a few less trucks parked in these lots. Perhaps the freight transportation industry is turning around. Know that.