Tuesday, June 22, 2021

AN APPROACH TO EMERGENCY PLANNING WITH OPEN SOURCE GIS & IMAGE ALALYSIS TOOLS USING INTERPOLATION TECHNIQUE In the wake of COVID – 19 PANDEMIC Year 2020-2021

 



Coronavirus is difficult to contain in dense and crowded areas having narrow lanes and streets that makes social distancing a real challenge during times of pandemic and restricts access to light, ventilation and outside view for psychological well being of people. So is the case with the selected study area Hindpiri, which is situated at the core of Ranchi city in India. The Geographic area of Ranchi being 652 sq km has population of 10.7 lakh approx. Hindpiri is a dense area with cultural diversity and mixed socio economic fabric, 1st hit by covid19 in March 2020. 

Hindpiri, may qualify to have implemented planning schemes launched by Government of India like Local Area Plan (LAP) and Town Plan Schemes (TPS) mainly to curb dense urban sprawl, which intensifies most challenges during pandemic times. Land pooling for development through such schemes would require a different strategy due to prevailing CNT and SPT acts (Chhotanagpur Tenancy Act, and Santhal Pargana Tenancy act) on tribal land that imposes restrictions on land transfers.

The project outlines a method to estimate areas of various land use data and built density volumes from satellite image using raster classification and interpolation methods. Then the project focuses on developing a scientific, data driven multi criteria and participatory planning process, Leveraging the strength of GIS and remote sensing that allows addressing all issues of cities related to diverse demographics, culture, socio economic conditions at local levels, existing infrastructure, built environment and land use. In accordance planning recommendations would be made from pandemic point of view. 

Urban sprawl and expansion in a city is controlled by allocating a standard FSI (Floor Space Index), a tool that may be backed with evaluation on multiple criteria’s like existing infrastructure, services, utilities and access types of land parcels.The land parcels would be identified as donor / receiving areas for consuming proposed allowable FSI as incentives in exchange to contributing for creating government’s land bank for providing amenities in lines with LAP scheme. All other design elements would be planned in accordance comprising subdivision of project area into manageable health districts having special access to interconnected underground emergency service corridors, identification of potential convertible urban spaces for transforming into quarantine facilities/ Hospitals, followed by recommendations on Architectural aspects.

Instilling trade of FSI through TDR (Transfer Development Rights) within project area would allow ‘dedensification’ of potential Donor land parcels (having low allowable built density) and ‘densification’ of receiving land parcels (having higher allowable built density) as identified in proposed built density maps. The tribal lands in Jharkhand cannot be sold to nontribal people as per the prevailing CNT and SPT tenancy acts but it may be gifted to government for land pooling / acquisition for providing better amenities, healthcare facilities, public spaces at Hindpiri. 

Cities have limited space hence urban spaces need to be convertible/ transformable and multipurpose. Identified open spaces/ Parks/ existing malls/ offices/ hotels etc may convert into quarantine facilities or emergency health care facilities with use of prefab construction techniques/ 3D printing technologies in construction.




Implementation of GIS based Master Plans Formulation under the sub-scheme of AMRUT - Jharkhand (ArcIndia_News_Magazine_Dec_2020_Vol14issue2)

Download Publication ( page 29-33 ) (ArcIndia_News_Magazine_Dec_2020_Vol14issue2)   URL Link: ArcIndia News Archive  Publication of Vol 14, ...