Noise Emissions from Buses
Ministry of TransportSpeakers
Summary
This question concerns bus noise emission levels in residential areas and measures to improve driving habits, as raised by Mr Dennis Tan Lip Fong. Senior Minister of State Dr Lam Pin Min explained that all public buses must meet statutory standards through stringent procurement specifications, maintenance requirements, and regular inspections. He noted that the Land Transport Authority is trialing diesel-hybrid and electric buses to transition to a quieter fleet while maintaining building setback guidelines and greenery to mitigate traffic noise. Regarding driver behavior, authorities are working with operators to regulate bus movements at interchanges, particularly during early morning hours, to minimize resident inconvenience. The government continues to monitor feedback and technical compliance to ensure public buses remain within permissible noise limits through inter-agency collaboration.
Transcript
15 Mr Dennis Tan Lip Fong asked the Minister for Transport (a) whether the Government is satisfied with the current noise emission levels of buses especially when travelling through HDB and other residential estates; and (b) whether any further measures will be taken to encourage more considerate driving and to reduce noise emissions from buses.
The Senior Minister of State for Transport (Dr Lam Pin Min) (for the Minister for Transport): Mr Speaker, all public buses are required to meet the noise emission standards stipulated in the Environmental Protection and Management (Vehicular Emissions) Regulations. LTA ensures compliance by stipulating stringent procurement specifications on vendors and strict maintenance requirements on public bus operators, including regular inspections to check that noise levels are within permissible limits.
Meanwhile, LTA will be conducting trials with 50 diesel-hybrid buses starting in late 2018 and with 60 electric buses from 2019. If they prove cost-effective, we will be able to migrate our buses to a quieter fleet.
Mr Dennis Tan Lip Fong (Non-Constituency Member): I thank the Senior Minister of State for the answer. This question arose out of a request from a resident during house visits. I would also like to ask the Senior Minister of State one supplementary question. What measures are being taken, or will be taken, or will the Government consider taking further measures to improve the driving habits of bus drivers, in particular, to reducing or keeping the noise level of buses while they are driving around residential estates?
Dr Lam Pin Min: I would like to thank Mr Dennis Tan Lip Fong for his supplementary questions. Just to put things in perspective, there are actually several measures that LTA prescribes to ensure that the noise emission levels from buses are kept to within permissible levels. One of which I have mentioned in my reply, is the procurement specifications with regards to the buses that the companies purchased. Of course, the other will be the maintenance requirements.
On top of that, there are also other mitigating measures put in place. For example, our land development agency such as HDB and URA have development guidelines to set back residential buildings away from major roads. Take for instance, the building setback distance from expressway is 30 metres, and for major arterial roads is about 15 metres.
In addition to that, land is also set aside for NParks to plant trees and shrubs along the road to absorb the traffic noise. With regards to specific driver behaviour, fortunately the number of feedback of noisy buses received by LTA is currently quite low. Most of them largely pertain to public buses interchanges situated near housing estates when buses are departing in the early morning hours. LTA together with NEA are working very closely with the public bus operators to see how we can regulate the movement of the buses in these interchanges so as to minimise the noise emitted that is causing inconvenience and disamenities to nearby residents.