Noise Reduction Barriers for MRT Stations Near Residential Areas

Assoc Prof Fatimah Lateef asked the Minister for Transport whether the Minister will provide an update on the study and plans for the implementation of noise reduction barriers at MRT stations situated in close proximity to HDB and residential areas.

Mr Lui Tuck Yew: As part of the plan to address railway noise, LTA has embarked on an island-wide noise measurement study along the entire length of all elevated MRT tracks island-wide. The study is expected to be completed by April 2012, and will enable LTA to identify locations that require special attention. So far, the appointed consultant has completed noise measurements for more than 50% of the 500 identified residential blocks. Concurrent with the study, LTA is also looking into appropriate noise mitigation measures, including the implementation of low noise barriers (LNB).

The LNBs have already been piloted at two locations. In June 2011, LNBs were installed at the new Jurong East Modification Project (JEMP) viaduct and platform at Jurong East Station, which come as close at 15 m to HDB blocks. These LNBs have helped to reduce noise to around the same levels as before the implementation of the JEMP. In November 2011, LTA also piloted LNBs along the open tracks next to the Bishan MRT Station, where the configuration of the MRT tracks and structures includes a tunnel portal that is located in close proximity to the flats. The unique design of the existing portal contributes to higher noise levels for surrounding residents as train noise is amplified when the trains exit from the tunnel portal. The appointed contractor is currently at the design stage of the project and implementation is targeted to be completed by July 2012.

The findings from these studies and trials will enable LTA to develop appropriate plans to mitigate railway noise, and LTA will share the details of these plans when ready.

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