Railways to use hi-tech survey for high-speed train corridor
The railways will use LiDAR technology — which involves conducting an aerial survey, and is known to give accurate data on the contours of land, even below vegetation — to expedite work on India’s first high-speed train corridor between Mumbai and Ahmedabad.
The use of Light Detection and Ranging, or LiDAR, will allow the survey of the 508km corridor to be completed in 9-10 weeks against the normal 6-8 months. It will help the national transporter start ground work on the Modi government’s dream project by 2018. According to the plan, almost the entire corridor will be on an elevated track, except 21km that will be underground. Of the 21km, 7km will be undersea.
The survey will be conducted by a helicopter, which carries equipment, including a high-resolution digital camera (100 megapixel), a laser scanner and a data recorder. An official said LiDAR was a remote-sensing technology that measured distance by illuminating a target with a laser and analysing the reflected light. The GPS unit interacts with GPS satellites to finalise the ground control points.
“The total flying time for covering the full corridor will be 30 hours. The preparatory work and time taken in processing of data is quite high, but still the process allows the survey of the full 508km in 9-10 weeks instead of 6-8 months,” Mukul Mathur, executive director (PPP), railway board, said. The exercise is highly accurate and enables capturing data of buildings and forest,” Mathur said, adding that this technology would be used for the survey of a rail line for the first time. For the survey, the helicopter will fly at a height of 500 metres while identifying 15.6 points per square metre.
You might also like
32nd IATO Annual Convention to take place in Chennai from 18-21 September, 2016
The 32nd Annual Convention of IATO will be held in Chennai from 18 -21 September 2016. The venue of the convention is ITC Grand Chola Chennai. While announcing the decision of
China flags off 1st goods train to London
China has launched its first freight train to London over 12,000 kms away as part of efforts by the worlds second largest economy to expand rail links to different areas
Ethiopian Airlines to start double daily flights
Ethiopian Airlines has finalized preparations to start double daily flights to Mumbai Chhatrapati Shivaji International Airport starting March 2015. Ethiopian has been providing reliable air service to Mumbai for over