ABSTRACT
In the preparation of Structure Plans, local planning authorities have largely drawn upon data obtained through ‘national’ agencies. These include various government ministries, particularly for data published in respect of industrial development and employment, and transportation, and other government agencies such as OPCS, 1 notably for data on population distribution and change, migration, housing and household composition, and so on. These data are used mainly at an aggregate level and, indeed, are produced to serve a wide variety of purposes. To obtain greater detail it is necessary to supplement these data by whatever local studies the planning authority is able to conduct. 2
