ACCON carried out comprehensive noise and air
quality assessment for a proposed hotel and
residential units within the London Borough of
Brent.
The development site itself is adjacent to the
B4565 Empire Way which has been designated as
an Air Quality Management Area since 2005.
The purpose of the assessments was to determine
to what extent air quality and noise issues
constrain the residential development of the site.
The detailed air quality assessment considered the
overall levels of hydrocarbons, nitrogen dioxide
(NO2) and particulates (PM10) in the vicinity of the
site. The predicted concentrations were verified to
bias-adjusted local monitoring results to ensure the
model was not under or over-predicting.
The modelled results indicated that in the area of
the proposed development closest to the road
would exceed air quality limits whilst the
residential units to the rear of the hotel would not
exceed the limits. The predictions also indicated
that the impact of traffic associated with the
development would be insignificant.
The extensive noise assessment undertaken
assessed the road traffic in order to determine to
what extent noise would constrain the
development of the site. The road noise source was
modelled using CadnaA noise software in order to
clarify the distance attenuation and the shielding
effects of the hotel building upon the noise levels
at the proposed residential units. Additionally,
mitigation options were reviewed to ensure that
internal noise levels met the WHO and BS 8233
guidelines.
The planning application was subsequently
granted in April 2010.
Visit the ACCON UK Ltd website for more information on Dexion House, Brent