Noise Pollution mitigation

Anything between 50 dB to 90 dB is noise.

In Railways, following strategies can be adopted:

• Tall barriers along track at vulnerable locations.
• Screened portals along track at select locations.
• Low level accoustic barrier.
• Using hoolow axle wheel sets and modified brake system.
• Rubber in steel girder bridge.
• Aero stream nose in high speed. 
• Using machines with low noise.
• Using honeycomb filled double skinned Al-Alloy bodies to insulate passenger area.
• Running underground trains.
• Floating slab track (FST) on viaduct sections.( reduces noise by 10 dB)
• Low vibration Track (LVT) in tunnels.