CONCENTRICRING MODEL

  a theory of how urban land use develops over time. Developed by Earnest Burgess in 1924 to explain social patterns in Chicago, it was later proposed as a general theory of urban land use. It says that zones of transition, low, medium and high-class residences are found in concentric rings outwards from the CBD. Since discredited as having few real-life applications due to unrealistic base assumptions that fail to account for factors such as transport routes and topography.