enganga Posted May 22, 2014 Report Share Posted May 22, 2014 hallo members I have vector data in point form. it is about health facilities. i want to do geographic accessibility and spatial coverage of the health facilities. Kindly assist with tutorials and or methods to carry this out Suitable interpolation methods Regards Enganga Quote Link to comment Share on other sites More sharing options...
Lurker Posted May 23, 2014 Report Share Posted May 23, 2014 since you want to carry on accessibility you need a road data too, and first you need to make a network analyst data based on your road network and your health facility point data. you can search network analyst tutorial for arcgis on google, there are a example for that 2 Quote Link to comment Share on other sites More sharing options...
sabilibni Posted June 12, 2014 Report Share Posted June 12, 2014 For the coverage topic you can use buffer facility in many ways. Quote Link to comment Share on other sites More sharing options...
meodensi Posted June 24, 2014 Report Share Posted June 24, 2014 Hi Enganga, The common method is to create buffers for all the points (health care centers) to show how they cover the region. Somehow, it's not efficient to advanced health care service management. Two basic information you need includes: - Health care facilities, and - Road network - and (optional) DEM. A simple method (but efficient) you can try is with following steps: 1. Create distance map from road network. - Grid data from vector map of roads - If you have DEM (free from JAXA), you can incorporate slope as obstacle feature with the distance map to make it irregular (more realistic). 2. Create distance map from health care points (based on its importance, you'll have different distance coverage from each point) 3. Overlay (or sum up) Point distance map with Road distance map. 4. Reclassify the result to display health care coverage. From this simple example, you can add up more parameters to make it closed to realistic. The best method is to run accessibility analysis with GIS to: Calculate accessibility index from any residential point to health care service within a certain distance and certain means of transport. Can't tell you much about it here, perhaps you can find it from Internet, they're available. Cheers. 2 Quote Link to comment Share on other sites More sharing options...
willywang Posted June 26, 2015 Report Share Posted June 26, 2015 There is another tool for network analysis: SuperGIS network analysis. here is the example of service area: http://www.supergeotek.com/forum/Default.aspx?g=posts&t=236 If you want to estimate the low cost route in spatial analysis, SuperGIS spatial analyst can also do that: http://www.supergeotek.com/forum/Default.aspx?g=posts&t=202 Quote Link to comment Share on other sites More sharing options...
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