Civil Engineering Reference
In-Depth Information
organization
technology
materials
manpower
gov't policies
3
A
procurement
new
building
available
space
the building industry
P
socioeconomic policy
techno-cultural policy
fiscal/monetary policy
employment policy
4
demand
for space
occupied
space
reduces the demand
socioeconomic policy
techno-cultural policy
fiscal/monetary policy
employment policy
technological change
wear and tear
economic change
cultural change
esthetic change
2
5
need for
space
obsolete
space
increases the need
demographic changes
social changes
economic changes
technological changes
1
B
procurement
shelter
building
available
space
the building industry
P
available skills
available time
socioeconomic reality
monetary resources
employment
opportunities
4
demand
for space
3
occupied
space
reduces the demand
socioeconomic reality
monetary resources
employment
opportunities
improvements through
- economic change
- functional change
- esthetic change
2
5
need for
space
improved
space
reduces the need
demographic changes
social changes
economic changes
population migration
LEGEND
controlling function
1
delay
Figure 5.1
The habitual cycle of housing production.
A
by the formal sector and
B
informally.
A
Changes/trends in society (1) create the
need
for space, which in
response to policies (2) becomes a
demand
for space, which enters the
building industry through procurement (P), mobilizing resources (3)
to produce available space, which, in response to the same policies (4)
becomes occupied, thus reducing the demand for space. However, this
space becomes obsolete (5), contributing to increasing the need for
space and to further cycles.
B
Different changes (1) create the
need
for space, which in response to
realities (2) becomes a
demand
for space, which is met by mobilizing
individuals' resources (3) to produce available space, which in
response to the same realities (4) becomes occupied, thus reducing the
demand for space. Significantly, this space is continuously improved
(5), decreasing the need for space; further cycles continue for other
families.
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