When idling up Floyd Hill at half-speed and with a full load, truckers from Allied Van Lines apparently don't have much else to do than take in the view. That's why, in a recent survey of more than 300 of these professionals -- men and women who prowl the interstates from coast to coast -- they voted Colorado's I-70 the most scenic stretch of asphalt in the nation. Of course, motorists stuck in gridlock -- and between a couple of diesel-puffing big rigs -- near Georgetown on a ski-weekend afternoon probably have another way to describe the scene.