Table 4.1 : Summary of Noise Standards

Uses

Noise Standards by Noise Source - Aircraft Noise (Noise Exposure Forecast : NEF)

Noise Standards by Noise Source - Helicopter Noise
Lmax dB(A)

Noise Standards by Noise Source
- Road Traffic Noise L10 (1hour) dB(A)

Noise Standards by Noise Source
- Rail Traffic Noise

Noise
Standards by Noise Source
- Fixed Noise Source

All domestic premises including temporary housing accommodation

(a)	5 dB(A) below the appropriate Acceptable Noise Levels shown in Table 2 of the Technical Memorandum for the Assessment of Noise from Places Other than Domestic Premises, Public Places or Construction Sites and

(b)	the prevailing background noise levels

Hotels and hostels

-ditto-

Offices

-ditto-

Educational institutions including kindergartens, child care centres and all others where unaided voice communication is required

-ditto-

Places of public worship and courts of law

-ditto-

convalescences and residential care homes for
the elderly

-ditto-

Amphitheatres, and auditoria, libraries, performing arts centres and Country Parks

depends on use, extent and construction

depends on location and construction

Notes:
1.	The above standards apply to uses which rely on opened windows for ventilation.
2.	The above standards should be viewed as the maximum permissible noise levels at the external facade.
3.	Definitions of noise units and criteria are included in Appendix 4.2.
4.	For details of the aircraft noise management, Civil Aviation Department should be consulted.

2005

Last revision date : December 2008