Once completed in 2023, LTA expects the noise barriers to reduce noise levels from passing trains by five to 10 decibels. Image source: LTA
A contract to design and install 5.5km of railway noise barriers under the third phase of the Land Transport Authority’s (LTA) railway noise barrier programme has been awarded to PBT Engineering.
The contract will cover 16 locations, which runs from Pasir Ris to Kembangan stations along the East-West Line, and from Jurong East to Khatib stations along the North-South Line.
Once completed in 2023, LTA expects the noise barriers to reduce noise levels from passing trains by five to 10 decibels.
It noted that the type of noise barriers to be installed depends on the tracks’ profile and noise level.
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Noise barriers at turnout sections, where trains switch tracks, “have a semi-enclosed “portal” design to handle the higher noise levels, whereas those along plainline or straight tracks are vertical”.
LTA explained that installing a portal noise barrier usually takes three times as long as vertical barriers due to the larger columns required.
It also revealed that the installation of noise barriers has “gained momentum due to the implementation of early closures and late openings for MRT stations along the NSEWL”.
“The additional engineering hours have provided LTA and SMRT with more track access time for maintenance and improvement works, including the installation of noise barriers,” it said.
According to LTA, Phase 1 was completed in 2018, with 11.5km of noise barriers, while Phase 2 is expected to be completed by the third quarter of 2020. Meanwhile, Phase 3 looks set to be completed in 2023, bringing the total length of noise barriers to 27km.
“Phase 3’s completion in 2023 will bring the total length of railway noise barriers installed across the island to 27km,” added LTA.
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Victor Kang, Digital Content Specialist at PropertyGuru, edited this story. To contact him about this or other stories, email victorkang@propertyguru.com.sg
