Delhi: Encroachers encroached
Delhi Development Authority (DDA), is using IRS 1C data for
its Rohini project in Delhi. The agency has been able to identify 14 categories
of land uses on the satellite imagery at a scale of 1:12,500. The revenue
boundaries of the villages in a west Delhi urban fringe area, Rohini, could be
correlated to the satellite imagery. Detection of large-scale conversion of
agricultural land into non-agricultural land has been a useful information for
deciding the extent of built up areas on the day the government decides to
acquire land. This technique has already been used in Delhi for the purpose of
identifying the new unauthorised colonies, slum clusters and encroachments on
government land that keep mushrooming all over Delhi. This has become a helpful
aspect while dealing with legal cases and compensation cases. Satellite imagery
provides reliable records at regular interval which helps to see evolution of
the city over a period of time. DDA is also using GIS to prepare the 2021
Masterplan for Delhi. A whopping budget of Rs. 350 lakh has been made available
to ready the plan which will be fully computerised. The NRSA is preparing base
maps of Delhi by using the satellite imagery and photogrammetry technique.
Besides, most of the work will be done in DDA’s own Computer Aided Design (CAD)
Centre.
For details, contact:
P. S. Uttarwar
Jt.
Director / Vijay Risbud,
DDA Commissioner, New Delhi.
Tel:
91-11-4690431, 4032