Maharashtra Villages mapping
- Write-up on the project created by Craig
- Tracking sheet for the metadata in this shapefile
- Challenge: With many shapes with repeating village codes of 2011 census, the original shapefile we had could not be used in web-based programs. As it needs at least one column/field with unique and non-blank values.
- Also, there were several blanks (shapes without any 2011 census code assigned) and it might be better to serialize them and have a way to track them too.
- Therefore we decided to copy the 2011 codes to a new field/column, NEWCD2011, and there rename the repeating village codes by suffix R01, R02 etc. And the blanks were assigned numbers followed by district code. eg: B001D497 , B002D497 , B003D497. Full log of this process is linked below.
- Log of processing shapefile for web interface
- Download the MH Villages v2W2 shapefile (output of above)
- Choropleth visualization of census data for MH villages created by Namita B :: project on github
- upload-your-own-csv version
Taking Census data as the benchmark, we can compare the shapefile data with it and locate discrepancies.
400 villages in census data don't have a corresponding shape, and 616 shapes in shapefile don't have a matching census entry. We can separate out this data and attempt to reconcile it.
- v1: First dump we received of MH Villages shapefile. This had only 2001 census codes; and did not have 2011 census codes nor did it have the names of the villages.
- v2: Second dump of MH Villages shapefile with 2001, 2011 census codes and village names too. So we decided to work with this.
- v2.2 (deprecated): This was an attempt to get around the challenge of repeating village codes and blanks through QGIS's dissolve function. But it distorted the whole shapefile too much, so we abandoned this one.
- v2W1: made for use in web interface. New columns added to have a unique, non-blank field for indexing. Also, some initially detected obvious errors were fixed (tracked in tracking sheet)
- v2W2: Optimized v2W1 to smaller size by using the simplify feature on mapshaper.org. (zipped shapefile is 32mb; was 122mb earlier)
- IndiaWikiFiles : Wiki files for villages and towns in Maharashtra based on Census 2011 (the project has work going on for other states too)
- indian_village_directory : List of villages in India with census codes from 2011, programmatically scraped from http://lgdirectory.gov.in/
- http://www.mrsac.gov.in MRSAC : Maharashtra Remote Sensing Applications Centre
- MRSAC Geo-referencing of Village Map Project (GVMP) : this is probably where the MH Villages shapefile has come from.
- MRSAC: Taluka maps : PDFs of talukas, with the village boundaries and names. These can be taken as official/benchmark source to compare the MH Villages shapefile's village and taluka boundaries with, and to detect missing villages, clarify boundaries etc.
- http://lgdirectory.gov.in/ : Local Government Directory : facilitates State Departments to update the directory with newly formed panchayats/local bodies,re-organization in panchayats, conversion from Rural to Urban area etc and provide the same info in public domain.
- GSDA (Groundwater Surveys & Development Agency) website: PDF maps of all villages in Maharashtra with water harvesting zones marked https://gsda.maharashtra.gov.in/gwrechargemap.html
- https://github.com/justinelliotmeyers?utf8=%E2%9C%93&tab=repositories&q=india&type=&language= Multiple datasets here, it would be worth to compare all the different datasets we have.