Written Reply by Minister for Transport Khaw Boon Wan to Parliamentary Question on Noise Barriers along Kranji Expressway Adjacent to Residential Units along Segar Estate and Blossom Residences

Mr Liang Eng Hwa asked the Minister for Transport

a.     whether the Ministry will consider installing noise barriers along the stretch of Kranji Expressway (KJE) running adjacent to the residential units along Segar Estate and Blossom Residences; and

b.     what is the estimated cost of installing such noise barriers on a per metre basis.

Reply by Minister for Transport Khaw Boon Wan:

1.     To reduce traffic noise along this stretch of the Kranji Expressway (KJE), the Land Transport Authority will implement a low-noise pavement mix for the at-grade section by 1Q2022. Trials have shown that this low-noise pavement mix, is more effective in reducing noise for residents than vertical noise barriers.

2.     Noise barriers which cost about $4,000 to $5,000 per metre, are not suitable for this stretch as it will hinder the visibility of on-coming traffic.

3.     LTA will continue to explore new and cost effective ways to mitigate the impact of traffic noise and improve the quality of living for residents living near expressways.