Train Noise Measurement Study

Mr Cedric Foo Chee Keng asked the Minister for Transport if he will give an update on the MRT noise measurement study carried out by LTA.

LTA’s island-wide MRT noise measurement study, which was completed in May 2012, identified a number of locations that experience noise levels exceeding NEA’s guidelines. In particular, noise levels in areas located near turnout sections of rail viaducts, tend to be much higher.

While the study was going on, LTA proceeded with a trial to test the effectiveness of noise barriers in reducing passing train noise. The trial, which was carried out at the Jurong East Modification Project (JEMP) and Bishan, found that noise barriers were effective in reducing the noise level by around five decibels (dBA) averaged over an hour (Leq 1-hour). LTA subsequently awarded a contract in October 2012 to pilot noise barriers at Tampines, Jurong East and Toh Guan. These pilots will allow LTA to assess the most efficient design and installation method for the noise barriers. The findings from these studies and trials will enable LTA to develop appropriate plans to mitigate railway noise, and LTA will share the details in due course.