Construction Noise Monitoring at Block M
We - Explore
We are committed to safeguarding the
well-being of our campus community. This initiative highlights the proactive
role of HSO in identifying, assessing, and managing noise arising from
renovation works at Block M – helping to ensure a safe and supportive working and
learning environment for all staff and students.
1. Background
As part of
ongoing campus development, external wall renovation works are being carried
out at Block M. While these works are essential for maintenance and upgrades,
they introduce potential noise impacts that require careful, continuous
assessment and management.
A pilot noise
assessment was first conducted in November 2025, followed by more
extensive monitoring during full‑scale operations from March to May 2026, with particular focus on higher‑noise activities.
2. Source and Nature of Noise
The primary source
of elevated noise levels was wall tie hacking, a construction activity
inherent to external wall renovation works.
These activities
were conducted during daytime hours. Given the proximity of indoor office spaces
to the active work zones, certain locations were expected to experience
relatively higher noise exposure compared to other parts of the building.
3. Investigation & Monitoring
Adopting a
proactive and evidence‑based approach, HSO carried out comprehensive noise assessments across
multiple phases:
- Pilot assessment (November 2025): Simulated various construction
procedures to predict potential noise impacts
- On-site monitoring (March–May 2026): Focused on high‑noise activities during actual operations
To ensure accuracy and reliability, HSO implemented the following protocols:
- Calibrated sound level meters were used for all tests
- Both short‑term (5‑minute) and full‑shift (8‑hour) measurements were conducted
- Monitoring locations were strategically selected to capture the most representative exposure levels
HSO also worked closely with CFSO to ensure transparency and address potential concerns. Encouragingly, all recorded noise levels were found to be within established safe limits.
4. Mitigation Measures
Beyond technical measurements, equal emphasis was placed on proactive communication and user support. HSO actively engaged with affected departments to:
- Explain the assessment methodology and key findings
- Address concerns and provide practical guidance
- Enhance understanding of the renovation activities
To support personal comfort where needed, ear protectors were provided alongside clear instructions on their proper use. Continuous efforts were also made to promote awareness of noise management and personal protection measures.
5. What Staff and Students Can Do
We value feedback from the campus community and encourage active participation in maintaining a safe and comfortable environment.
Our team remains available to provide support and practical advice. For further information or enquiries, please visit:
Occupational Hygiene | Health and Safety Office
6. Next Steps
HSO will continue to monitor noise levels as renovation works progress, particularly for activities that are expected to generate higher noise exposure.
Ongoing monitoring ensures that:
- Noise levels remain within safe and established limits
- Appropriate mitigation measures are actively implemented and maintained throughout project lifespan
