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Spatial Decision Support System using GIS based infrastructure: Planning in health & education for Ranchi district
Spatial Database Design & Organisation
- Delineating the study area spatially.
- Identification and collection of spatial data consisting of SOI Toposheets of 1:250,000 scale and maps from Census-handbook.
- Creation of maps using cartographic techniques.
- Creation of digital maps using Arc/Info software , which involves
- Digitisation of scanned maps.
- Coverage editing to remove digitisation errors such as dangles, overshoots or undershoots and labels for each of the polygons.
- Performing clean build operation to create topology.
- Projection and transformation of coverage into realworld co-ordinates following the same projection system as adopted by SOI Toposheets i.e. Polyconic Projection and choosing spheroid as Modeverest.
Fig 5: Village map of Ormanjhi block along with Health facilities & Malaria affected areas
Non-Spatial Database Design and Organisation
- Identification and collection of non-spatial data elements consisting of
- Census-data of 1991 in digital form.
- Educational data (2001) containing information about number of Primary schools, Middle schools in each of the village, number of teachers and students e.t.c. in hardcopy from offices of District Commissioner of education, Ranchi and in softcopy from office of Bihar Education Project, Ratu block HQ, Ranchi.
- Health related data of year 2001 containing information about number of PHC, PHSC, APHC, and Referral hospital e.t.c. from Civil Surgeon Office, Ranchi. Malaria related data from State malaria Office, Jharkhand, Ranchi.
- Editing the non-spatial data attributes.
- Transformation of all data obtained in a suitable standard digital form i.e. dbase files such that it is compatible.
- Design and Organisation
- All the non-spatial data obtained from different sources are organised following a district-Block-Village hierarchy using MS-Excel software.
Fig 6: Village map of Torpa block along with Education facilities & range of number of students
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