environmental psychology

2.  Observational study of a residential colony to
find out how people behave to control
temperature in extreme weathers
 Study the heat control architectural features.
 Suggest improvements

3.  A case study research method has been
adopted for analyzing a representative
sample of the havelis of Sethi Mohalla, in
order to understand their inherent bioclimatic
responsiveness and use of natural sources.

7.  extensive surveys of the courtyard houses
observed.
 interviews with the residents of the havelis.
 on-site photography
 Sketches

8.  A case study of Sethi Mohallah

14.  Sethi Mohallah is a place in the heart of the
walled city of Peshawar.
 Sethi mohalla was the enclave of Sethis and
was named after them, Sethi that means
wealthy.
 All the Sethis living here were rich traders
and businessmen. They established their
businesses at China, Afghanistan, India, Iran
and Central Asia and their trade centers
were at Tashkent, Samarqand, Bukhara,

15.  The owners of these houses were famous
for their wealth and love for architecture.
 Sethi family was not only wealthy but they
were generous and were involved in the
welfare work of Peshawar.

21.  These havelis are rare architectural
masterpieces which were built by the affluent
Sethi family.
 They are a blend of the art and architecture
of Gandhara and Central Asia, and their
design is inspired by the vernacular
architecture of Bukhara, Uzbekistan.

23.  There are seven havelis built in almost the
same style, in a street less twisting and
turning than usual walled city streets.
 The first was constructed by Haji Ahmed Gul
in the year of 1882.

24.  The overall complex is a combination of brick
and woodwork decorated with carved
wooden doors and balconies.
 Mirrored and painted atriums offer fresh
breeze and appealing views, while the
primary entrances are made of stunning
carved wood.

25.  The main gate leads to a vast open
courtyard with a water fountain in the
middle.
 The fountain, not functional however,
reminds the visitor of the glorious days when
the house welcomed scores of people
through its doors.

26.  Surrounding the courtyard are four spacious
rooms, all of which are connected through
similar passageways. The windows of the
rooms face the courtyard, each from the
same angle.
 These windows have colorful glasswork.

28.  Inside the rooms are mehraabs, just like one
would find in a mosque. The mehraabs are
filled with small pieces of glass shelves
intended to place candles at night

31. Tekhana
dalan
balakhana

32.  Courtyard
 Fountain
 Jharokha
 Mashrabiya
 Walls
 Shades
 Manual Fans
 Water wells
 Basements
 Ceilings

34.  The city of Peshawar, experiences
longer summer spells; May to September
and shorter winters.
 During the summers, the mean
maximum temperature is over 40 °C

36.  The courtyard forms a perfect square and
occupies nearly 30% of the total haveli area.
The surrounding walls rise to 19´ and there are
overhangs of 6´ wide on three sides.
 To avoid heat gain through the courtyard,
through a variety of permanent and temporary
shading devices; wooden arcades,
roof overhangs,

37.  The hottest summer month is June when the
temperature swings between an average high of
81°F/27.2°C - 101°F/38.33°C .
 The calculated temperature difference that
the courtyard offers from the outside is 3.374°C.
Thus, for an external temperature of 38°C the
Sethi courtyard will maintain a temperature of
about 34.62°C

38.  The courtyard’s effectiveness in terms of
environmental response may be measured
by studying its aspect ratio.
 The aspect ratio is a measure of the degree
of the courtyard’s openness to the sky; a
greater aspect ratio indicates that the
courtyard is more exposed to the sky

40.  The Allah Buksh Sethi haveli’s courtyard has
an Aspect Ratio of 2.11. This indicates that
this is a relatively shallow courtyard and thus
has good exposure to the sky.
 This exposure allows winter
sunlight to warm the courtyard and the
roomson the N, NE and S sides.

41.  The summer sun will also heat up the courtyard
floor but most of the balakhanas are protected
by the overhangs and the takht on the NW side.
The courtyard
floor which is heated during the day is quickly
cooled by evaporative cooling (wetting of the
floor) in the early evenings and radiation to the
cold sky at night time.

47. Location Fight Murder Rape Drug Addict case
Exposed
Hayatabad 453 64 68 1345
Chamkani 3000 400 698 3456
Sethi Mohallah 446 10 34 346
Fig: http://kppolice.gov.pk/

48.  The courtyard is protected by 6´overhangs
on all four sides.

50.  There are iron loops and hooks on the sides
of the overhang of the courtyard indicating
the use of a large covering which was tied to
cover the opening of the courtyard.
 This was closed in the day to reduce direct
sun penetration and glare.

51.  A steel rope was hung across the opening of
the courtyard; this had large loops which
held a large fan.
 The fan was moved manually to
increase the air flow within the courtyard and
into the balakhanas.

52.  There is a water fountain in the courtyard,
which inducts water into the air.
 This cools and moistens the hot dry air
inside the courtyard and the balakhanas
providing relief from the hot dry conditions.

53.  Water was sprayed on the brick floor of the
courtyard in the mornings and evenings and
this encouraged cooling of the area through
evaporation.

54.  A type of overhanging enclosed balcony

55.  All the street are narrow to speed up the
wind.

56.  A jali or jaali is the term for a perforated
stone or latticed screen, usually with an
ornamental pattern constructed through the
use of calligraphy and geometry. This form
of architectural decoration is found in
Indian architecture.

59.  Mud Bricks are used as a thermal mass in
exterior spaces
 Wooden partitions are made in interior
spaces

64.  The Water fountain should be made
functional.
 Rain water harvesting technique will provide
water to fountain
 Solar panels if install will energy cost for
fountain small pumping

65.  Water well should be a made renew
according to present day mechanical
gadgets.
 The hot air can easily be circulate in to that
well and reversely made that cool air to
circulate in all interior spaces through ducts