The Index of Multiple Deprivation as a Map
“Geodemographics of Housing in Great Britain – a new visualisation in the style of Charles Booth’s map” is a map that I have produced that shows the Index of Multiple Deprivation ranking deciles for London and the rest of England. The most deprived 10% of areas in coloured in dark red, the next 10% in lighter red, and so on. Instead of colouring each area uniformly, as a choropleth (or thematic) map, only building blocks are coloured as such. This stops parks and other uninhabited land from acquiring the colours of surrounding housing, although non-residential housing is unfortunately not excluded. This can be thought of as a primitive forma of dasymetic mapping. It is similar in concept to Charles Booth’s Poverty Map of London from 1898-8, where he also coloured building areas based on the classification, although his map was at a much finer detail, being based on personal visits to the houses. The building outlines, along with roads, railways, water features and placenames, come from the Ordnance Survey’s Vector Map District dataset, part of its Open Data suite.
There is more information about the map on my blog. A simliar map, of the Output Area Classification (OAC), is also available, although, due to the capital’s unique size and characteristics, the OAC does not distinguish its areas well.
Contains Ordnance Survey data © Crown copyright and database right 2011. IMD 2010 data from the Department of Communities and Local Government.
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