The document discusses transition zones between rural and urban areas. It defines transition zones as sparsely built up areas with incomplete infrastructure that contain some urban uses like industry or recreation areas. Transition zones act as a buffer between rural and urban land uses and can expand as cities grow. The document also presents Burgess's concentric zone model of urban growth which showed urban zones expanding and reconverting rural land at the edges, creating early transition areas. Finally, it provides a case study of defining and zoning transition areas in Olsztyn, Poland using GIS data and land use mapping.