Drone & Dusted
The devil lies in the details. Especially if you are an administrator. Map-readers can zoom in on more details from now on as the
Picture this: Earlier maps in the city were of the scale 1:50,000 (which means 1 cm on map is 500 m (50,000 cm) on the ground. With the new technology, the scale will be 1:500 m. This indicates great detailing. To begin with, a thorough rectified image base maps at 1:500 scale with an accuracy of ± 10 cm will be prepared and this will be followed by GIS data preparation. The previous topographical map of Bengaluru was updated in 2005-06.
Currently, the SoI is preparing a new large scale topographical map covering 51,000 square kilometres of land in Bengaluru Urban, Ramanagar, Belagavi, Uttara Kannada, Hassan and Tumakuru districts. A MoU was signed between the
“The work has already started. In the first phase, the processional survey grade drones/unmanned aerial vehicles are being used. Earlier, the smallest mappable unit was 100 by 100 metres and now it will be one by one metre. Earlier, two or three societies were shown as a single block while now even the external furniture can be mapped,” said a senior official of the Dehradun-headquartered SoI.
These maps will be helpful to the revenue department to modernise its records. Officials call this a goldmine for the revenue and municipal departments as every asset will be mapped in detail and this helps the departments monitor development. Covid had put the brakes on work that was to pick up pace sooner. In the second phase, topographical maps will be made for Kodagu, Davanagere, Dharwad, Kalaburgi, Dakshina Kannada, Vijayapura, Gadag and Mysuru.
Another project under the Survey of Villages Abadi and Mapping with Improvised Technology in Village Areas (SWAMITVA) will survey inhabited villages of all the districts of Karnataka as many of these villages were never surveyed earlier and hence no revenue records for such villages were available with the state government. The first phase of this project is to be over by March 2022. Even this project will have a map of 1:500 scale. “There were no revenue maps for many uninhabited villages which are now being covered,” said an official.
According to the SWAMITVA project, the details will provide the ‘record of rights’ to village household owners possessing houses in inhabited rural areas in villages which, in turn, would enable them to use their property as a financial asset for taking loans and other financial benefits from the Bank. The main objectives of this project are to bring financial stability, creation of accurate land records for rural planning, determination of property tax, creation of survey infrastructure and GIS maps and to reduce property related disputes and legal cases. The Department of Space and Technology website further adds, “All land parcels in the village for preparing the accurate revenue maps and GIS database. Drone survey will be pivotal to fix locations of village boundaries, canals, canal limits, agriculture field limits and roads in these villages.”
Record of rights
In a reply to Lok Sabha question recently, Minister for Science and Technology Dr