Abstract
While a range of international standards defining noise, vibration
and other physical environmental measures have been established,
common methodologies for measuring people's reactions to these same
environmental effects are still in their infancy. This reduces the
comparability of prevalence statistics and exposure–effect relationships
developed by different researchers. The public authorities are served
incompatible or seemingly conflicting information from different
surveys when deciding on appropriate guidelines and limits. Drawing
on experiences with the 1998 Norwegian Socio-vibrational Survey and
a Swedish socio-acoustic survey supplemented with vibration measures,
a new Nordtest Method: NT ACOU 106 Acoustics—Assessment of annoyance
by vibrations in dwellings from road and rail traffic has been defined.
The method describes sampling requirements, and proposes a mandatory
verbal 5-point categorical annoyance scale and an optional 11-point
numerical annoyance scale, both with lower anchoring point “Do not
notice”. A survey data output format is specified to allow researchers
to pool data from different surveys.
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