Computer implementation of the Quantifiable City Decision Support System (QCDSS).

Design and development of a computer model that would allow to monitor urban sustainability trends, to identify major urban processes contributing to unsustainability, and to predict the impacts of policies on city sustainability involves two major tasks: (i) Specification of the scientific contents of the model; (ii) Design and development of the computing framework that will enable an effective implementation of functionality specified under (i). This report addresses mainly the second task. Part B describes the general structure of the computer system (called the Quantifiable City Decision Support System, QCDSS in short). Part C introduces an exemplar model that has been used to demonstrate the process of the transition from a conceptual to an operational computer model. A detailed description of the computer implementation of the exemplar model, which focuses on urban air pollution, including sources and impacts, is presented in [Kupiszewska 1996al.