of course, would like to use their own cars. Because, they are more comfortable than the public transportation vehicles. People feel more comfortable because there are alone in their private cars. They can listen to the radio according to their wish. They do not worry about whether they are standing or sitting when compared with the situations on the buses. They can make telephone calls in their own cars. They don’t have to wait or catch the buses. When we consider this situation from this aspect, private cars are chosen for transportation.