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National Clinical Analysis and Specialised Applications Team

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Geographic Information Systems (GIS)

Through the capture, management, analysis and display of all forms of geographically referenced information, NATCANSAT support improvements in decision-making and service development.


What is GIS?

Geographic Information Systems allow the visualisation of data across backdrops such as maps. It aids the mapping and spatial analysis of data and information enabling users to analyse, interpret, and understand data to reveal relationships and patterns.

Data containing postcodes or any data that can be attributed to a geographical area e.g. CCG, Senate, Census Ward, can be mapped and analysed with geographical outputs.


A few examples of GIS work that NATCANSAT have produced include:

  • Mapping of any service locations or boundaries (GP Practices, Hospitals, CCG/Senate/Network boundaries).
  • Mapping of patients attending services and the effect of relocation of the service on the patients' drive time/travel distance (relocation of a GP Practice).
  • Mapping HES, RTDS or other data to show catchment areas for a variety of services (radiotherapy, paediatric cardiac surgery).
  • Quantifying the effect on the population of a new secondary/tertiary care service or relocation of an existing one. Demonstrating both the effect on drive time, and change of activity for surrounding services.


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