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The spatial diagram illustrates the future spatial development of a
district or region. It is a policy document which reflects the
political will of the opinion leaders and the decision makers. In order
to obtain an official status for the public decisions and investments,
it is approved by the relevant authority probably after having been
discussed with members of public and the sectoral line agencies. The
transformation of a development concept into a physical spatial
structure is conducive to the design of development strategies and
policies required for the implementation of the development activities.
It shows how district or regional interactions are shaped in the future
by, for example, extending road networks. It indicates the highest
priority areas that should be developed. Furthermore, decisions on the
settlement pattern development in the future are depicted in the
spatial diagram. The spatial diagram depicts all physical structures
within the district or region that are designed to enhance locational
advantages for development. A spatial diagram does not require a time
horizon. It is a flexible model that is designed to guide decision
makers in optimising investment decisions, mainly in infrastructure,
that will in turn encourage and foster economic and social development
to take place. The spatial plan is usually implemented successively
through time. In addition, an approximate scale is used for the diagram
in order to avoid too much detail. Once a decision has been taken to
implement elements of the spatial diagram more detailed land use plans
are developed.
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