LTA and the public transport operators closely monitor the noise levels on all our MRT lines. All our underground MRTs are generally kept to an interior noise threshold of 85 decibels LAeq (a measurement of sound pressure over a period of time).

From our monitoring, we are aware that there are some areas along the Thomson-East Coast Line (TEL) where this noise threshold may be exceeded, such as between Springleaf and Lentor Stations, Stevens and Napier Stations as well as Bright Hill and Upper Thomson Stations. This is due to the curvature of the tracks in these areas.

The curved track alignment was necessary to minimise the need to acquire land from local residents and shorten commuting time for all passengers. Mitigation measures have been implemented to reduce noise levels on the TEL, including slowing down the trains in these areas, and grinding the surface of the tracks to smoothen the contact between the tracks and wheels.

We seek commuters’ understanding of the higher noise in these areas. We would also like to assure Mr Kok that this is an area we are paying close attention to, to ensure a more pleasant journey for commuters.

Yee Boon Cheow (Mr)
Group Director, Rail (Electrical & Mechanical)
Land Transport Authority