Face it! After about 10-20 miles, long trips are boring! The sound of your tires humming on the road does not completely increase the music you are playing. Most of the surroundings on a long trips is the same, especially if you have ever driven a long trip - you have seen everything you can see. The "white noise" of the tires and nothing visually enticing to hold your attention, these two potentially dead combinations lead to road exhaustion, which is contribute to road fatigue.