Abstract
To obtain basic knowledge for effective promotion of carsharing, one-shot TFP, which is one of representative measures in mobility management, was conducted in the areas where a carsharing system was introduced for a social experiment. The result of communication questionnaire revealed that one-shot TFP could promote understand toward carsharing and could enhance behavioral intention to join in a carsharing organization. In addition, the results indicated that it might be important for effective promotion to appeal an environmental benefit of carsharing and to target the car-owners who want to an additional car.