An incineration plant is one of the most important and indispensable infrastructures to our urban activities. The historical and nation-wide research on sites of incineration plants were made to find the physical and social background of locations. Most of large plants in Japan are located on the urban fringes; river-side, sea-side, mountain-side, administrative-side and social consciousness-side. The result of this research has shown that the tendencies of site dicision was not only depend on the physical and technical backgrounds.
