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Living near an airport can be very noisy - with negative
effects on health and the environment.
The new standard ISO 20906:2009, Acoustics
- Unattended monitoring of aircraft sound in the vicinity
of airports, will help regulators,
professionals and researchers in their effort to reduce noise
in the vicinity of airports.
This International Standard gives requirements for reliable
measurement of aircraft sound. It describes a threshold system
of sound event recognition in a complex sound environment
with multiple aircraft and other sound sources.
ISO 20906:2009 specifies -
- The typical application for a permanently installed sound-monitoring
system around an airport
- Performance specifications for instruments and requirements
for their unattended installation and operation, in order
to determine continuously monitored sound pressure levels
of aircraft sound at selected locations
- Requirements for monitoring the sound of aircraft operations
at an airport
- Requirements for the quantities to be determined in order
to describe the sound of aircraft operations
- Requirements for data to be reported and frequency of
publication of reports
- A procedure for determining the expanded uncertainty of
the reported data in accordance with ISO/IEC Guide 98-3,
Uncertainty of measurement - Part 3: Guide to the expression
of uncertainty in measurement (GUM: 1995).
Exposure to intense noise or noise over long periods can
lead to hearing damage and other physiological impairments.
Those impacts are recognised both for those working on the
site of an airport and for those who live near the runways.
Mr. Berthold Vogelsang, Project leader and convenor of ISO
Working group which prepared the standard, comments - "the
environmental concerns of people living near airports is increasingly
taken into account by governments, airport authorities and
aviation companies. Manufacturers are developing quieter aircraft,
governments are committing themselves to reduce noise around
airports and plans to fight against noise pollution are being
adopted.
"To achieve the objectives of such initiatives, regulators
and aviation professionals need internationally agreed measuring
tools and reference documents - ISO 20906 is a practical answer
to this need."
ISO 20906:2009, Acoustics – Unattended monitoring of
aircraft sound in the vicinity of airports was prepared
by ISO technical committee ISO/TC 43, Acoustics,
subcommittee SC 1, Noise, WG 52, Noise from aircraft
at civil airports and is available from ISO national
member institutes (Click
Here). It may also be obtained directly from the ISO
Central Secretariat, price 136 Swiss francs, through the ISO
Store
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