The concept of smart city is suggested as a new style of city for providing sustainable growth and encouraging healthy economic activities to reduce the burden on the environment while improving the QoL (Quality of Life) of city residents. Many experimental projects are currently being carried out in the world, which are varied and divers. Many researchers also be actively involved in vitalizing smart city activities and improving the QoL of residents using ICT-representative technology (Information and Communications Technology). For promoting the establishment of smart cities, SPSD2015 is intended to gather researchers and planning consultants who will share their own ideas and the latest results of research and successful case studies in smart city governance.