On planning, planning theories, and practices: A critical reflection

The futility of defining planning suggests that there is no planning as a recognizable practice. Sociology of knowledge definitions imply three kinds of planning practices: (1) Generic "planning"-what people do when they are planning; (2) Knowledge-centered "something" (e.g., spatial) planning; and (3) Real planning practiced in specific contexts, from metro-regional planning for Jakarta to transportation planning for the Trans-Europe Network, and enacted in general contexts, for example, informal- or Southern planning. Planning theories are linked to different practices: generic "planning" theories and "something" (e.g., regional, community, environmental, or Southern) planning theories. Selected topics illustrate the "planning" theory discourse and spatial planning theories are briefly reviewed. Three generations of planning practice studies are reviewed: the first, a-theoretical; the second, the "practice movement," who studied practice for their own theorizing; and the third, informed by practice theories. Five books about planning show how their planning theorist authors understand planning practice. While recognizing planning as diverse practices, they hardly apply "planning" theory to planning practices. "Planning" theories are divorced from enacted planning practices, "something" (e.g., spatial) planning theories include constructive adaptations of "planning" theories and paradigms, but knowledge about real planning practices is limited. Implications from these conclusions are drawn for planning theory, education, and practices.