As parking is an indispensable action when we drive a car, it should be paid attention as well as driving. However, ITS services for parking are not put into practical use well compared with other ITS driving support services. This paper proposes “Parking ITS” which enhances parking space and parking action, and discusses its possibility. By promoting Parking ITS, an improvement of not only vehicle traffic but also comprehensive transportation network and a vitalization of urban area by transferring users are expected.