Our public transport system should be a calm, reliable mode of travel for all Singaporeans. Yet, many commuters continue to suffer from excessive noise on trains and buses, whether it is someone playing loud videos on speakers or having disruptive phone conversations. While Hush Hush Hannah has raised awareness, we can move beyond mascots, reminders and courtesy campaigns to create lasting behavioural change.
We can have a structured system of personal accountability backed by clear regulations and effective enforcement.
Cities like Shanghai have already implemented bans on loud speakers and videos in their subway systems, while France has begun fining passengers for using phone speakers in stations - measures that have shown promising results1.
First, we should establish a definitive decibel threshold — around 60 to 70 decibels — above which noise is considered disruptive. This level corresponds to normal conversation volume, giving a clear, objective benchmark. Public buses and trains could be outfitted with basic sound-monitoring devices that automatically alert transport staff when noise levels spike significantly. Alternatively, staff and fare inspectors could use portable meters to verify whether a passenger’s device is breaching the threshold. Such technology already exists, and its integration would provide evidence-based grounds for issuing warnings or fines.
Second, we must empower transport staff and station officers with the legal authority and training to enforce these rules. For example, staff could perform regular checks, supported by roving inspector teams that respond to commuter reports via a dedicated mobile app or hotline. If a train carriage is especially noisy, a commuter could tap an in-app “report noise” button. The station officer at the next stop, alerted in real time, could board and assess the situation. Upon confirming excessive noise, the officer would issue an immediate warning or a small fine. A similar reporting mechanism can be implemented for buses.
Third, the penalty framework must be proportionate yet impactful. I favour showing leniency to first-time offenders, with a warning or a small fine. However, their identification and details can be recorded to ensure tracking for subsequent offences, which can also lead to higher subsequent fines.
Clear decibel thresholds, empowered enforcement officers, real-time reporting tools, an escalating penalty structure, and tools for public awareness will help strike the right balance between personal freedom and communal well-being.
1. https://www.bbc.com/news/articles/c4g949m4g41o
