Resumen
Land-use planning is currently characterised by three weaknesses: a relative lack of systematic analysis of the theoretical and technical aspects of planning, a neglect of methodology and a lack of interest in clarifying key concepts. The present paper attempts to address these issues in a systematic manner on the basis of an explicit epistemological background. The strategy adopted is to focus on ten critical concepts covering the key areas of the field of land-use planning theory. The discussion is organised into two main sections, one on theory and one on methodology, which are examined both in their general sense and specifically as they apply to planning theory. Through an analytical discussion of each of the ten concepts and a critique of previous approaches, the paper proposes a new kind of land-use planning theory, spatiology, considered as a prerequisite for applied land-use planning, and a new view on the structuring of land-use planning methodology. The final aim of the paper is not simply to list the concepts, but to formulate an organised conceptual whole resulting from their interrelation which can provide a solid foundation for planning theory.