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In a significant development, National High Speed Rail Corporation Limited (NHSRCL) which is overseeing the ambitious Mumbai-Ahmedabad bullet train project, on Tuesday said that the installation of noise barriers work along the Mumbai-Ahmedabad Bullet Train Corridor is underway.
These noise barriers are installed to mitigate the noise that will be generated by the train and civil structure during operations. As of September 10, the noise barriers have been installed over a stretch of 87.5 km with more than 1,75,000 noise barriers have been installed in Gujarat, said a press release from NHSRCL. According to the NHRSCL, for a stretch of 1 km, around 2000 noise barriers are installed on either side of the viaduct while three precast factories for manufacturing of noise barriers have been established in Surat, Anand and Ahmedabad. The press release said, "For a stretch of 1 km, 2000 number of noise barriers are installed on either side of the viaduct. Three precast factories for this modular element have been established in Surat, Anand and Ahmedabad for the manufacturing of noise barriers." The noise barriers are concrete panels of 2 metre height from the rail level and 1 metre wide. Each noise barrier weighs around 830-840 kg. They will reflect and distribute the aerodynamic sound generated by the train and the sound which will be generated by the lower part of the train, primarily by the wheels running on the tracks, said NHRSCL. The release added, "These are designed in such a way that they will not obstruct the view for the passengers enjoying the train ride. The viaduct passing through the residential and urban areas will have higher/taller noise barriers of 3 metre. In addition to the 2 metre concrete panel, the additional 1 metre noise barrier will be of 'Polycarbonate' and translucent in nature." Earlier on July 31, Minister of Railways, Information and Broadcasting and Electronic and Information Technology, Ashwini Vaishnaw informed Lok Sabha in a written reply to a question that the entire land -- 1389.5 hectare has been acquired for the Mumbai-Ahmedabad bullet train project. The reply reads, "Till now, 350 km of Pier Foundation, 316 km of Pier Construction, 221 km of Girder Casting and 190 km of Girder Launching have been completed. The work of the undersea tunnel approximately 21 Km has also started." (ANI)
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