My family took a vacation to Scotland last year. You could go from bumper-to-bumper crowded, to totally empty, in about 1/2 a mile. One thing I noticed was that the popular tourist destinations are of course mobbed with tour buses and crowds, but for every such place, there's an equally cool place a few miles away, that's empty.
Here in Wisconsin, the farm-to-market roads tend to have relatively low traffic.