NHSRCL to use aerial LiDAR technique for Delhi-Varanasi High Speed Rail Corridor

Updated:5 years, 2 months ago

New Delhi, Dec 08 (ANI): In a major development in Delhi-Varanasi HSR corridor, National High Speed Rail Corporation Limited will adopt Light Detection and Ranging Survey (LiDAR) technique. NHSRCL will use laser enabled equipments mounted on a Helicopter for conducting ground survey for the preparation of Detailed Project Report. The survey will provide accurate details of areas around the alignment. This technique uses a combination of Laser data, GPS data, flight parameters and actual photographs to give accurate survey data. Because of its high accuracy, the aerial LiDAR survey technique was successfully used in Mumbai- Ahmedabad High Speed Rail Corridor, which was for the first time for any Railway project. Now it is being used in Delhi-Varanasi HSR corridor protect. Keeping in mind, the magnitude of the project and adhering to the timelines to submit the Detailed Project Report of DVHSR corridor, the ground survey using aerial LiDAR technique has already started. Reference points on the ground have already been marked and data collection through equipment mounted on a Helicopter will commence from 13th December 2020 (depending of the weather conditions) in a phased manner. The requisite permissions from the Ministry of Defence for flying the Helicopter have been received and the inspection of the aircraft and equipment are underway. The proposed Delhi-Varanasi HSR alignment covers mixed terrains including densely populated urban and rural areas, Highways, Roads, Ghats, Rivers, Green fields etc, which makes this activity more challenging.

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NHSRCL to use aerial LiDAR technique for Delhi-Varanasi High Speed Rail Corridor

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