ASPHALTopics | Spring 2014 | VOL 27 | NO 1
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will now need to be considered in<br />
future Acoustic Assessments, and may<br />
result in non-compliance with NPC-300.<br />
Places of worship<br />
Places of worship located on commercially<br />
or industrially zoned lands are<br />
no longer considered sound-sensitive<br />
points of reception in NPC-300, which<br />
represents a relaxation compared to<br />
the old guidelines.<br />
Inclusion of rail traffic in determining<br />
background sound<br />
In certain circumstances, NPC-300<br />
allows sound from rail traffic to be<br />
included, in a limited manner, in the<br />
quantification of background sound,<br />
for the purposes of establishing the<br />
applicable sound level limits for<br />
stationary sources. This has the<br />
potential to relax the limits in some<br />
cases relative to the old guidelines,<br />
although there are special conditions<br />
restricting the cases in which the rail<br />
noise can be included.<br />
Exclusion of dwellings within the<br />
property of a stationary source<br />
The definition of noise sensitive land<br />
use in NPC-300 includes a provision<br />
stating “a land use that would normally<br />
be considered noise sensitive, such as<br />
a dwelling, but is located within the<br />
property boundaries of the stationary<br />
source is not considered a noise<br />
sensitive land use.” This applies to<br />
instances where a home, such as a<br />
caretaker’s or employee’s residence,<br />
is owned by an industry and located<br />
on the site of that industry. This<br />
provision does not preclude the need<br />
for self-impact assessment for onsite<br />
receptors at facilities such as schools<br />
and hospitals.<br />
Corey Kinart, P.Eng, is a senior engineer<br />
at HGC Engineering, a leading Canadian<br />
acoustical consulting engineering firm.<br />
He is a member of the OHMPA<br />
Environment Committee.<br />
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SPRING <strong>2014</strong> 39