water acces for a growing culture elizabethJohnson
CONTENTS: ARRIVAL CITY/ MIGRATION SITE ORIENTATION MAPPING PHASE INDEXING PHASE MESHING PHASE NEIGHBORHOOD CASE STUDY Individual neighborhood developement
ARRIVAL CITY + MIGRATION: Caracas is an arrival city and is going to experience a population boom in the coming decades; its top three origins of migrants are its neighboring countries Columbia, Brazil and Guyana.
CARAGUYVENEZU-
BRA-
COLUMBIA
SITE ORIENTATION: Metropolis: Caracas, Venezuela - population- 3.1million [approx.] - pop. density- 7,160 people/sq. km. [approx.]
Arrival City: Petare, Venezuela - population- 1 million [approx.] - pop. density- 50,000 people/sq. km. [approx.]
MAPPING PHASE:
WATER SYSTEMS:
River System
River Floodplains
Rainwater Runoff
Runoff Catchment Area
MAPPING PHASE: Green spaces were preserved considering the severe lack of green spaces that currently exist within petare
Flora
Urban Green Space
MAPPING PHASE: ARTERIAL ROAD NETWORK: connectivity is a large problem in petare. in order to judge what is currently happening in petare, we must map it so we can work to improve it.
MAPPING PHASE: PROGRAMS: DEPICTED HERE WE SEE THE RESIDENTIAL SECTORS. IT IS IMPORTANT TO NOT THAT THE RESIDENTIAL ENCOMPASES A LARGE AMOUNT OF THE LAND WITHIN PETARE.
INDEXING PHASE: DANGEROUS SLOPES WERE ELIMINATED DUE TO THE EXTREME TERAIN IN AND AROUND PETARE. UNBUILDABLE SPACE WAS REMOVED FROM POTENTIAL INTERVENTION SPACES.
Dangerous Slope
INDEXING PHASE: DEVELOPED DENSITY WEB: this is a demonstration of the building densities that exist within petare. we can see that within the favelas the buildings are immensly dense and it is inversed when you move away from the favelas
Density Web of Route Network and Built Development
INDEXING PHASE: ROAD NETWORK CONNECTIVITY: Road connectivity is limited through the favelas and to the east where developement is beginning to spring up. it is important to build upon and improve this connectivity network
Existing Route Network System
MESHING: SUBTRACTIVE LAYERS: when all layers are compiled and suprtaced from developable area a mesh emerges Floodplains
Non Build-able Slopes
Developed Land
Existing Landscape
MESHING: PROPOSED EXPANSION
NEIGHBORHOOD CASE STUDY: DENSITY SAMPLES:
High building density at the bottom of the hill
High building density mid-way up the hill
Total Area:
105,000 sq. meters
Total Area:
156,250 sq. meters
Building Area:
52,500 sq. meters
Building Area:
83,750 sq. meters
Density:
50%
Density:
53.6%
Medium-low building density moving up the hill
Low building density high on hill
Total Area:
194,375 sq. meters
Total Area:
171,250 sq. meters
Building Area:
53,125 sq. meters
Building Area:
41,875 sq. meters
Density:
27.3%
Density:
24.5%
NEIGHBORHOOD CASE STUDY: total roof water catchement
Light Blue:
Lesser Roof Catchment Area
Dark Blue: Area
Greater Roof Catchment
Annual Rainfall:
91cm
Rooftop Area:
231,250 sq.m
OBJECTIVE: TO GIVE THE GENERAL PUBLIC MORE ACCESS TO better WATER, AS WELL AS OPPORTUNITIES TO GROW AND SELL THEIR OWN FOOD
Meshes as a whole The final mesh is a compilation of several aspects including slope, flood plane, existing construction, and several other aspects. The individual mesh (outlined in green) was selected based on some similar aspects.
single mesh selection and branches The intricate road network was developed based off three layers; the existing roads, rain water runoff, and site contour. Each of these attributes was chosen for several reasons. the existing road network was used because connectivity is a major problem in existing petare and this new system needed to address how people, water and goods will move. second, water runoff was an important attribute because one of the main goals of this system is to give better access to water for the general public. we can see that the water runoff is quite dominant and provides quite a bit of connection. lastly the contour was important in relationship to both the existing roads as well as the water because slope of the site needed to be a consideration
existing roads
water runoff
site contours
A total condition It is apparent that when the micro-branching system is applied by way of similar means to the major branching road network, a total condition emerges. we can see that the micro-branches are quite uniform throughout. Because of this any set of neighborhoods can be chosen as example of how the system will be employed. the neighborhoods outlined in red are the ones to be focused in on. this particular set was also
block arrangements building arrangement was constructed based on a specific set of rules: -buildings shall not occupy all sides of a given block -building height is dictated by immediate street length -market locations are no more than two per block and within a 3 minute walking distance of each other
Block occupation buildings shall not occupy all sides of a given block. This particular rule is employed to decrease porosity within each block with relation to both the arrangement of buildings in a block as well as the height of the building. all of these components paired with the green spaces allows for a porous feeling while still making it possible to achieve the goals of the system.
building heights BUILDING HEIGHTS ARE DETERMINED BASED ON A RELATIONSHIP EACH BUILDING SHARES WITH ITS IMMEDIATELY ADJACENT STREET. THIS RELATIONSHIP IS IMPERATIVE TO ENSURING A DECREASE IN POROSITY TO IMPROVE VISUAL SIGHT THROUGHOUT EACH NEIGHBORHOOD. For example in figure 1, the street length is 34 Feet, this dictates a building hight of two levels. the immediately adjacent building however had a street length that dictated a 4 story building. this relationship is important in that it helps to breakk up the monotony of the building type as well as emphasize the prorosity when combined with the green spaces.
1.
2.
y
y x
x
3.
Y
4.
y
x X
X=( ) Y=( ) 1. 30FT-50FT.........................................2LEVELS (30FT) 2. 50FT-70FT.........................................3LEVELS (40FT) 3. 70FT-90FT.........................................4LEVELS (50FT) 4. 100FT+.......................................5 LEVELS + (66FT+)
MARKET LOCATIONS Market locations are situated in a way that the markets are no more than three minutes walking distance from each other. Additionally there are no more than two per block. these two guidelines are employed to make it convienient for residents to sell their wares as well as be close to someone that might be selling something totally different that they might need. Essentially this arrangement of markets provides and even distribution of accessible markets.
building typology When building height is dictated to be two or three stories, These multi family dwellings will be constructed in the traditional way found around petare. They will be traditional wood framing with wood sheathing and sheet rock. There will be two and three story walkups with either side by side arrangement or flats. The true beauty of this construction type is that the residents of these communities can build them themselves. Again this is important because it will help create local jobs that are stable and can provide a livable income.
tilt up construction Similarly, when building hight is dictated to be four, five, six stories, and up,buildings with be constructed using tilt up concrete construction. they will have steel frames and be reinforced by standard steel rebar. Similarly to the two and three stories these units can have side by side arrangements or have flats. Additionally in this building method the residents can be involved in the construction as well as move beyond the residences and make a career for themselves using the skills they learned building their own homes.
water drainage Site drainage and storage will employ several methods; -a porous ground drainage system with use gravel and urbanite to help filter and direct water to green spaces. -down spout barrels and subterranean cisterns will be used to catch rain water. Without filtration,non of this water will be drinkable, however it will be suitable for household tasks and irrigating crops. Because water is such an issue here, it could be beneficial to install small simple filtration systems to every few houses so that this water can infact become drinkable.
The final product The end product is a system that helps the people of petare to improve their lives. this is accomplished by enabling them to produce and sell their own food, thus creating a livelihood for themselves. Additionally it gives the general public access to clean water which can in turn help them produce food. It is also important to note that in this system the people of petare wont lose their cultural identity. they are reliant on close knit communities that revolve around all aspects of life. Much of south America is very intertwined with their strong cultures and it is important to preserve them in any way possible.