ABSTRACT
In the relatively short history of urban and regional modelling there have been a number of key development phases. The first theoretical works in the 1950s and 1960s soon broadened into a second era of applied research ranging from subsystem work on new retail or housing sites to larger scale comprehensive models concerned with the impacts of major urban land-use changes. Spurred on by developments in computer technology this was the golden age for systems analysis and quantitative geography in general. Batty (1979, 1989) reviews this period in great depth.
