Driving Directions can be especially useful for road trips because the journey itself may be part of the experience. Instead of simply traveling from one destination to another, road-trip planning can include scenic viewpoints, restaurants, historical sites, parks, and interesting towns. In these cases, directions become more than a way to reach a final destination. They become part of a larger travel plan.
There is also something satisfying about successfully navigating an unfamiliar route. Finding the correct road, recognizing a landmark, making the right turn, and eventually arriving at the destination can create a strong sense of accomplishment. Even with modern navigation technology, there is still a small element of exploration involved when traveling somewhere new.