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GDEST 2008 Conference Sessions
Theme 3 - The African Data Stream
GIS: A Decision Support Tool for Urban Policy Analysis - Examples from Ghana
Amerley Ampofo, Sambus Company Limited, Ghana
As the population in Metropolitan areas continues to increase, policy makers with limited urban resources are compelled to take critical urban decisions that would meet the population needs. It is necessary that urban policy makers get the overall picture of growth and allocate resources accordingly.
Nonetheless these policymakers very often work with very limited information as they are unable to put together disparate data that would support their decision making processes. The facts and figures pulled out from spreadsheets very often do not give much insight of what is actually happening on the ground. There is therefore the need to put in place a system that would support resource allocation analysis, facilitate “what if?” scenario modeling and give a quick visual impression of trends and patterns.
In this poster presentation an overview of trends and patterns of metropolitan cities in Ghana generated from a GIS is presented which is intended to serve as a decision-support for urban policy analysis. The principle, GIS methods and purpose are described.
The output reveals that GIS is a suitable decision-support tool for urban policy makers and analysts to get the overall picture of metropolitan trends and patterns which should consequently facilitate informed decisions.