Based on the Shinkansen technology, the noise barriers are concrete panels of 2 metre height from the rail level and 1 metre wide. These panels are being erected on either side of the viaduct.
More Details:
- On either side of the Mumbai Ahmedabad High Speed Rail corridor viaduct, noise barriers are being erected to mitigate the noise which will be generated by the train and the civil structure during operations.
- These noise barriers will reflect and distribute the aerodynamic sound generated by the train and sound which will be generated by the lower part of the train, primarily by the wheels running on the tracks.
- Noise barriers 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.
- However, the double-skin aluminium alloy body of the train will minimise the noise level inside the train.
- The long and sharp nose of the high speed train will reduce the aerodynamic drag, which also reduces the blasting sound which is generated due to micro pressure waves created while the high-speed train exits a tunnel.
- More than 465 km of the 508 km long MAHSR alignment is elevated (on viaduct).
About MAHSR Project:
- Mumbai-Ahmedabad High Speed Rail (MAHSR) Project is 508 Km long first High- Speed Rail (HSR) network planned to be constructed in India.
- Out of 508Km, 352 Km lies in the State of Gujarat (348 Km) and Dadra & Nagar Haveli (4Km) and the balance 156 Km lies in the State of Maharashtra.
- The Construction Work is in progress in both Gujarat and Dadra & Nagar Haveli where 98% and 100% land has been acquired respectively.
- In Gujarat, High Speed Rail alignment passes through eight districts i.e. Valsad, Navsari, Surat, Bharuch, Vadodara, Anand, Kheda and Ahmedabad and work is in progress in all the eight districts.
- In Maharashtra land acquisition done so far is 40%.
- The project will entail an investment of 72,000 Crs in the state of Gujarat in both Land & construction.
- So far an expenditure of 14,200 Crs has been done.
- The project will generate direct & indirect employment of 60,000 in Gujarat state.
Source: NHSRCL- Press Release | Images Credit: MoR
