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GIS data

GCRO has spent a significant amount of time and money building a database of spatial data covering the GCR. Various government departments and agencies were consulted, with some of the key datasets obtained, listed below:

  • Department of Human Settlements Housing Atlas: investment potential atlas, community protests spatial viewer and informal settlements
  • Eskom: 2008 and 2009 Spot Building Count (SBC) and national electrical network layers
  • CSIR: Gauteng Transport Study (GTS2000) transport zones and attached household survey and other data
  • DEAT: Botanical gardens, RAMSAR sites, national parks and world heritage sites
  • Johannesburg City Parks: Disaster management layers, open spaces, infrastructure and hydrology
  • GDARD: Agricultural potential, Dolomite, Mine Residue Areas, C-plan, Agricultural hubs, NPAES (from SANBI), GAPA3, wetlands, ridges
  • Municipal Demarcation Board: new 2011 elections ward and local municipal boundaries

New innovative sources of data have also been purchased to assist in the spatial analysis of the GCR. Data licences were negotiated with the data suppliers to include access by Wits and UJ students and lecturers for academic, teaching and research (non-financial gain) purposes. The list of data includes:

  • Afrigis: Bizcount geocoded business layer, gated communities
  • GeoTerraImage (GTI): 2009 provincial land cover, 2010 urban land cover (2.5m resolution), growth indicator (2001 – 2009), and land use per erf (various dates between 2004 and 2009)
  • GeoTerraImage (GTI): Growth Indicator – 2010 land use per building (70 sub classes, providing a full classification of land use activities across the urban areas in Gauteng)
  • GeoTerraImage (GTI): Growth Indicator – development initiatives. A spatial dataset illustrating submitted, refused and approved applications and potential future growth such as rezoning of existing cadastre and township developments on farm portions and agricultural holdings
  • GeoTerraImage (GTI): Growth Indicator – demography. Based on the 2001 official StatsSA census, demographic statistics (gender, age, race and total population) are associated with each residential dwelling point (2001) to provide a fine scale analysis of the demographic situation. An indication of the 2010 demographic dynamics and population update is provided by AfricaScope (Mr Craig Schwabe) through demographic analysis and forecasting
  • DemProKey X from Lightstone: Census 2001 and updated 2010 income and demographics per EA (Enumerator Area from Census 2001) and 2011 ward boundaries
  • Deeds transfers and property valuation per EA from Lightstone: average Deeds transfers per EA as well as number of properties/transactions in various price bands from 1993-2010, and average valuation per EA based on Lightstone’s Automated Valuation Model (AVM) per EA from 2007-2010.

Students and lecturers from UJ and Wits are encouraged to make use of these valuable datasets for research projects focusing on the GCR. Examples of these layers are available on the GCRO GIS website.

For more information, contact Chris Wray.