To conduct ground survey for the Delhi-Varanasi higher speed rail corridor, Indian Railways will use the LiDAR (Light Detection and Ranging) approach with laser-enabled gear mounted on a helicopter, mentioned the National High Speed Rail Corporation Limited (NHSRCL). The improvement comes just after the approach of LiDAR was effectively employed in the Mumbai-Ahmedabad higher-speed rail corridor project for the very first time. With LiDAR technologies, higher good quality information is offered in digital kind in a quick time. The information offered with the use of LiDAR technologies can be utilized in many projects connected to roads, surface transport, canals, landslides, city arranging, irrigation amongst other people, according to a PTI report.
For the proposed Delhi-Varanasi higher speed rail corridor, the NHSRCL will be adopting LiDAR approach employing laser enabled gear mounted on a helicopter for conducting ground survey for the DPR preparation of the proposed Delhi-Varanasi higher speed rail corridor. For any linear infrastructure project, the alignment or ground survey is a important activity as it delivers correct facts of locations about the alignment. To give correct survey information, this approach makes use of a mixture of flight parameters, laser information, GPS information, and actual photographs. Based on the survey findings, designing of the vertical and horizontal alignment, structures, land requirement for the corridor, place of the stations and depots, identification of plots or structures that are impacted by the project will be decided.
For the very first time for any railway project in India, the aerial LiDAR survey approach was adopted for the Mumbai-Ahmedabad Bullet Train project mostly simply because of its higher accuracy. For this project alignment, the ground survey employing aerial LiDAR was accomplished only in a duration of 12 weeks against the period of 10 to 12 months if had been accomplished by means of classic survey solutions. The ground survey on this project employing aerial LiDAR approach has currently began with the reference points on the ground currently marked and from December 13, collection of information by means of gear mounted on a helicopter will commence in a phased manner, based on the climate circumstances.
The alignment of the proposed Delhi-Varanasi higher speed rail corridor covers mixed terrains, like densely populated urban and rural locations, highways, roads, ghats, rivers as effectively as green fields. The corridor’s tentative length is almost 800 kilometres and the alignment, as effectively as stations of this project, will be decided in consultation with the government. The Delhi-Varanasi higher speed rail corridor will connect the NCT of Delhi with significant cities such as Agra, Mathura, Lucknow, Etawah, Raebareli, Prayagraj, Varanasi, Bhadohi and Ayodhya. Also, the Delhi-Varanasi key higher speed corridor will be linked to the city of Ayodhya in UP and the route will connect the upcoming Jewar International Airpor as effectively.