An approach to built-form connectivity at an urban scale: modelling the disaggregation of built forms by types

This paper is the last of a sequence of papers, and in it an attempt is made to model the disaggregation of built forms by types, that is, into detached, semidetached, terraced and connected forms, for the ninety-five kilometre-square cells used to record the built-form subsystem of the town of Reading, England. Such disaggregation is considered to be a nonindependent event, that is, the probability of having less connected arrays of forms in a zone is inversely related to the probability of having more connected arrays in the same cell. The paper concludes by considering the connectivity properties of the built-form subsystem as neither random nor deterministic but probabilistic in relationship with the urban spatial structure and certain elements of the urban graph.