Environmental Engineering Reference
In-Depth Information
Table 19.3.1 The outdoor spaces improvement procedure.
Climatic
conditions
Survey
methodology
Comfort
indices
Region
Findings
Reference
Crete
Mediterranean Measurements of
temperature,
relative humidity
and wind speed.
Focus on shaded
areas by vegetation.
DI, ET
The addition of
8 trees in an
area of 100m 2
can reduce the
temperature for
up to 3.1 C
Georgi
et al., 2010
Malaysia
Tropic (hot
and humid)
Measurement
of ambient air
temperature (Ta),
Relative humidity
(RH), wind speed (v)
and mean radiant
temperature (Tmrt)
Questionnaires.
Focus on
shading areas.
PET
The acceptable
conditions are
higher than the
ones accepted
by the (PET < 34 C).
The locations with
shading obtained
from plants and
surrounding
buildings had a longer
thermal acceptable
period.
Makaremi
et al., 2012
Wellington
New
Zealand
Temperate
Ambient
temperature,
MRT in exposed
and MRT in
shaded areas
Bedford
scale
(Bedford,
1961)
People actively adapt
to microclimatic
conditions in outdoor
environments.
Maximum wind
gust is the most
important parameter
in predicting comfort
adaptivity, followed by,
the mean wind speed.
Walton
et al., 2007
Szeged,
Hungary
Central
European
Measurement
of air temperature
relative humidity,
wind speed global
radiation. Visitors
positioning via GIS.
PET
The visitors
mapping facilitated
the detection of
preferred areas
versus the outdoor
environmental
conditions.
Kántor
et al., 2010
Dhaka,
Bangladesh
Tropic
(hot and
humid)
Measurement of
radiant temperature,
humidity, wind speed
and direction, air
temperature and lux.
-
At relative humidity
of 70%, the comfort
is between 28.5 and
32 8C and the radiant
temperature between
28.71 and 32.57 8C,
The airflow extends
the comfort
temperature
but not significantly.
Behavioural sinks,
should be provided.
Ahmed,
2003
( Continued )
 
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