Delhi-Varanasi bullet train project to use LiDAR for ground survey
Delhi-Varanasi bullet train project will use Light Detection and Ranging (LiDAR) technology to conduct groud survey technique to prepare detailed project report (DPR), said National High-Speed Rail Corporation Limited (NHSRCL).
Delhi-Varanasi high-speed rail corridor is among the eight high-speed networks that the Indian Railways are planning across the country. The route is expected to be about 865 km. and will pass through Mathura, Agra Lucknow, Prayagraj, Etawah, Raebareli, Bhadohi, Ayodhya and Varanasi. The NHSRCL has already started work for preparing a detailed project report for the proposed Delhi-Varanasi high speed rail corridor.
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 the survey challenging.
A similar technique was used in the Mumbai-Ahmedabad high-speed rail corridor which resulted in high accuracy, For the first time, LiDAR technology was used for any railway project in the country. The project was completed in 12 weeks against the 10-12 months if it had been done through the traditional survey methods.