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By Sara Hart
Silence is golden
It should come as no surprise that good
building sites in dense urban areas are becoming harder to
find. Since development must continue, developers must now
consider less desirable sites, such as under flight patterns,
next to freeways, and over train tracks. If the site is buildable
and the location appealing, then the theory is that environmental
noise is a problem to be solved by design and engineering.
One of those problematic sites is Adams
Street, just across the Manhattan Bridge in the New York City
borough of Brooklyn. In addition to the din generated by the
vehicular bridge traffic, the site is confronted with the
noise of the elevated subway. Whereas this might not be a
deterrent if the program called for a factory or warehouse,
it is a potential marketing nightmare for a developer wanting
to build luxury condominiums.

An aerial view
of 85 Adams (above), a new condominium in
Brooklyn, shows its congested location. The
chart below shows noise levels on the east
facade, closest to the elevated subway, and
the south facade, facing the Brooklyn-Queens
Expressway. The most striking feature on the
chart is the spot of deep blue on the east
facade and at the sixth floor. This represents
sound from trains and traffic, which radiates
spherically, with the strongest impact on
floors three through nine. |

Image: Courtesy
Cetra/Ruddy Architects |
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A.I. & Boymelgreen Developers employed
the local firm Cetra/Ruddy Architects to design a 25-story
condominium complex, and New Yorkbased Shen Milsom Wilke
(SM&W) to evaluate the site for noise and to develop solutions
to mitigate it. SM&W was founded as an acoustical consulting
firm in 1986. Since then, it has added multimedia, telecommunications,
and building security to its repertoire. These additional
services surely benefit from the firms expertise in
acoustics, which is arguably the most elusive, subjective
specialty supporting architectural design.
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