Book #5
8
INTERVENTIONS In Viana we have investigated how water, as a public right, can act as a spatial and social organizer, framing the Angolan urban life.
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Transcript of Book #5
INTERVENTIONS In Viana we have investigated how water, as
a public right, can act as a spatial and social organizer, framing the Angolan urban life.
THE INTERVENTIONSTURNING PROBLEM INTO RESOURCE
MO
IST H
ARVES
TING
1
. TIME U
SAGE
2
. TIME U
SAGE
3
. TIME U
SAGE
4
. TIME U
SAGE
NATURA
L FILT
ER
HUMIDITY CATCHERS
ADD-ON GRIDS
WATER TREATMENT- & WIND-TOWER
ACTIVE DRAIN & STORM-WATER POCKET
TH
E W
ATER
NER
VE
#1INTERVENTION
TU
RN
ING
PRO
BLEM
INTO
RES
OU
RC
E
DRAINAGETHE CURRENT SITUATION IN VIANA
APR.
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aMAYj
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o
nd
NOV.j
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mj
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s
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m
d
resulting in erosion and poor road quality seeing where water naturally collects
DRAINAGE AND WATER MANAGEMENT ARE HUGE CHALLENGES OF LUANDA, CAUSING PROBLEMS FOR THE CITY FLOW, AS WELL AS FOR SAFETY AND WELL-BEING OF THE POPU-LATION -ESPECIALLY IN THE INFORMAL AREAS.
WATER FINDSIT’S OWN WAYS
resulting in a layer of green and in bigger scale
drainage ditch in the middle of the road different levels of ground
...BUT CAN ALSO BE ADAPTED
drainage ditch through informal residential area rounded stones cobble stone vegetation(earth) / soft ground
...OR HELPED TO GET THROUGH THE URBAN SURFACE
different levels of ground
OPEN WATER LINES ARE CLOSELY RELATED TO WASTE
:VIANA NATURAL DRAINAGE/ WASTE DITCH
ACTIVE DRAIN AND STORM-WATER POCKET
DRY SEASON LOW WATER STAND DRAIN
HIGH WATER STAND POCKET
LOW WATER STAND POCKET
THE WATER-POINT
RAIN SEASON HIGH WATER STAND DRAIN
Houses gets an extended platform outside and creates a meeting-place between the public and private.
By making the drain a socially accessible space, its users will feel a sense of ownership and responsibility and engage in the maintenance of the area, preventing it from becoming a dump.
The slope is vegetated for erosion control. People in the neighborhood can use this fertile earth for small-scale farming.
OPEN INFRASTRUCTUREAN URBAN ECOLOGY
COMMON DRAINAGE TUBE SYSTEM
Limited capacity leads to uncontrolled surface water
No accessFLOODINGLITTLE WATER
OPEN DRAINAGE SYSTEM
The open drainage system allows a VARIETY OF SPATIAL QUALITIES,TURNING THE PROBLEM INTO AN ACCESSIBLE RESOURCE
Flood pockets for seasonal rain. Allows for a new way of using the space and the water resource
Protect and access the little waterFLOODINGLITTLE WATER
Over-engineered drainage channel. Example from Luanda.
POCKE
T
drainage canal
drainage canal
This locally found material is a good filter material, and makes beautifaul paving.
The locally grown sisal plant is suitable for making organic mesh which can be laid as a blanket in the drainage slopa for erosion control. Vegetation is allowed to grow through is, and the roots of the plants is a helping hand in preventing erosion.
OPEN INFRASTRUCTURE
Local production at site Nylon bags filled with sand is something we found already in use in Viana. Yet, the bags need to be protected from sun and wear.
Little investment -
Gabon boxes are great building bricks, and can be locally produced.
Stone is an optimal filter material for blocking larger obstacles to enter the water system. The gabon carpet is efficient for preventing erosion.
Gabon boxes can be filled with other material as well, such as recycled plastics, old concrete and bricks, and much more.
The unlimited resource of the red sand Example of stacked sand bags
THE SOCIAL STREET
THE PAVEMENT ELEMENT
THE LOGIC OF THE PLACE
DRAIN AND FILTER MATERIALS
Fill-in with locally found materialsSimple framework Stabilized by each other. Can be laid irregularly to fit different contexts.
Functions as erosion control for the drain, and provides spatial qualities and a social arena.
“This is the local referance”
LOCAL INSPIRATION: The Embondeiro treeThe Embondeiro is called the Tree of Life, and can hold as many as 4,5 thousand litters of wa-ter. In sub-Sahara people used to hollow out baobab trees to use as reservoirs for the rain-water falling in the wet season.
TH
E W
ATER
-PO
INT
S#2INTERVENTION
LOC
AL
REF
EREN
CE
& G
ENER
ATO
R
WITHIN 10 MINUTES WALKING DISTANCE
WATER-POINT AS A SOCIAL ARENA
The water-point is always filled with people. It’s where everyone from the neighborhood gather, chat and make connections. You could say it’s a very important social arena.
