For reasons that are not fully known, many cases of UFO sightings and even alien abduction encounters take place on quiet, lonely roads, often when the respective witnesses are the only motorists on the highway, meaning they are vulnerable to such encounters. Indeed, this vulnerability of being alone on long stretches of road might be a large part of why these potentially otherworldly vehicles, or more to the point, their occupants, focus on such targets in the first place.
