URBAN PLANNING AND DESIGNING II

BACKGROUND
PHYSICAL CONTEXT ANALYSIS
DEFINITION OF NEIGHBORHOOD • Total area of the neighborhood, covers around 3.8 ha.
- neighborhood is an urban area related to a larger community of which it is a part and consists of residential districts, shopping facilities, open spaces, schools, religious building, etc. • A small river passes through-north to south-east direction is the
LITERATURE REVIEW - NEIGHBORHOOD UNIT dominant natural landscape feature
-The neighborhood unit theory by Clearence A.Perry possesses distinct entity characterized by the following prnciples: • 180 blocks pure residentila blocks with 5580 units
1. Heirarchy of units • Total number of communal buildings are 10 which is 1 communal
2. Walkability buildings per 558 households, originally proposed 49 communal
3. Mixing od land use blocks but only 10 was built out of this 6 are G+1 buildings and
4. Educational facilities 4 are G+0
5. Green spaces
PROPOSEDE VS EXISTING
6. Local services
• Extra block constructed on communal green area
7. Pedestrian focus
• A portion of car parking area is changed into green area
8. Community interaction
• Additional area used for circulation
9. Functional zoning
-Critiques
1. Increase of population
2. Advancement in technology
3. Functional and social segregation in
Perry’s neighborhood unit
4. Curse of the vacuum borders
5. Functional clasiification system
6. The scale of Perry’s neighborhood unit
7. Neighborhood as a social construct
STANDARD AND REGULATION
1. Housing
• Standard for plot preparation- 45:35:20 (low income: middle income: high income)
• Area/HH standards (M.sq/HH) - 80-130/130-140/140-150 ( pure residential/mixed use (social and physical infrastructure) /mixed use (social and physical infrastructure and higher level use)
• Min. housing area standards ( M.sq.) - 20, 30, - (low income, middle income and high income)
• Proposed popn density- Net household per hectare: 80-125, Net population density: 400-650
• Landuse mixity standards (%)- Residence: 40-50, Services: 15-25, Roads: 15-20, Administration, commerce and mixedcommerce, and other compatible uses: 15-25, Recreation and green areas:
5-10.
2. Road
• Vehicular road (W in m): PAS: 25&30, SAS: 20,25&30, CS: >11 and <20, LS: 8-10.
• Pedestrian road (W in m): PAS: 3.5-5, SAS: 2.5-4, CL: <2m, LS: determined by local environment
ELEMENTS OF A NEIGHBORHOOD OPPURTUNITIES AND CHALLENGES
• Neighbourhood core needs • Maintaining safe and welcoming environments
• Social Connectivity • Increase diversity
• Adabtability • Indentity
• Neighborhood character • Livablity
• Streets

CASE STUDY
TITLE: GOFA CONDOMINIUM
LOCATION AND ACCESSIBILITY:
• Absolute location: 8°57'37"N 38°44'26"E Administrative location:
Nifas Silk Lafto sub-city, Wereda 06 and Keble 09/14
• Relative location: 2km south of Kera Triple Level Square, 450m
Southeast of German Square, and km Northeast of Kore Square
• Accessibility: Gate - three collector roads, Collector A goes to west
following the path of the condominium, collector B goes southeast from gate 1
• Site is approached by Collector A( from gate 2,connecting the two official
gates of the neighborhood.
TRANSPORTATION:
• Pedistrian and vehicular movement, bajaj for public transportation SOCIO-ECONOMIC ANALYSIS
CIRCULATION • Occupants transferred in 2008, majority of residents from Lideta and Arat Kilo redevelopment sites.
• Site has six local roads intersecting around the blocks/ sub units of the • The condominium association: legal representative of residents established to protect the rights and
neighborhood, with width od road ranging from 10 – 15 meters. property of the communities, and acts like a mediator between housing development office and the
• Centeral round about connecting the north eastern and the southern residents.
western units of the neighborhood. • Role of community associatio: ollecting money from the residents, funding and developing the com-
munity, security of the compound, garbage collection, managing dispute, xecuting policy rules and
regulation, gardening and greenery, managing communal buildings, spaces and open spaces.
• Amenities, infrastructures and utilities: lack of water supplies, communal sanitation is affected by
inappropriate use of the space and lack of control over the spaces. Communal spaces and building are
being used for purposes different from the original planning, such as dish/receiver plantation, gar-
bage, storages, open kitchen spaces etc…, pharmacies and clinics within its boundaries as well as
commercial sectors and building
CONTEXT ANALYSIS
• Educational Institute: total of four educational institute within 800 meter radius and 15-20 educa-
tional center withing the next 1500m.
• Religious Institute: total of five religious institues within the next 800m radius and 10-15 within the
next 1500m.
• Health Institutes: total of 5 health instates within the next 800m and another 5 within the next
1500m
• Governmental institutes and Police Station: 1 governmental institutes and no police stations within
the next 800m and one police stationand three governmental institues within the next 1500m
• Other elements: Site has three football fields, 5-8 libraries, four parks, Zoma Museum, a botanic
garden; Wanza Botanic Garden and Muslim cemetery within the next 1500 meter radius.
 URBAN PLANNING AND DESIGNING II
CRITIQUES
• Lack of adequate neighborhood and building and housing planning.
• Open space and built up area proportion were poorly planned resulting in people using the open
SITE ANALYSIS
spaces for purposes other than the intended use: such us for planting satellite dishes, using it to dry
clothes, collecting garbage etc…
LOCATION: Site is found at 8°55'54"N 38°44'05"E; Addis Ababa, Nifas Silk Lafto, Wereda 11.
• Some parts of the neighborhood open spaces have been blocked by the housing blocks thus are hard
to access ACCESSIBILITY: Site if found
• Housing blocks have been criticized for the lack of space, lack of interior planning resulting in 250 meters south of Haile Garment
people using the communal spaces such as the corridor for cooking purposes and other unintended Woreda 11
purposes, throwing garbage from floors above, misusing existing facilities etc… square, 1140 meters north of Alibera
• Communal buildings placements have received criticism; it should have been placed in more areas Monument Sqaure, 3350 meters west
with more ease of accessibility which results in the misuse of communal buildings. of Kaliti Maseltegna Sqaure and 4720
• Existing parking space is three times bigger than the proposed plan due to the fact that there was a
need for more parking area. meters east of Haachaalu Sqaure.
• Children living in the neighborhood can’t use the open area to play around nor do they have a space
designed for that purpose.
• Even though condominium are built to help people considered poor research saw that it is not SITE HISTORY: Site is said to have been occupied by farmers and used as
a farming land for centuries except for the past two decades. The Site was ini-
SITE SELECTION Site A- Location: 8°56'01"N,38°44'06"E
tially part of the Oromia Province and was included as being part of Addis
SITE SELECTION CRITERIA Ababas pronvince two decades ago during the reign of Ethiopia Democratic
1. Land area criteria :North of Haile Garment Square at a dis-
tance of 320meters
Party EPRDF. From then on sIte has been renovated to serve as a residential
2. Accessibility network
3. Soil characterstics and condition Area: 50000 m2 and municipal area. It currently contains one of Africa international organiza-
4. Vulnerablity to natural hazard Land Use: Low density Residential tion the AFRICA CDC HEADQUARTERS a local government organization,
5. Soil drainage the nifas silk lafto sub city and a mass housing neighborhood The Garment LEGEND:
6. Topography Main Circulation Routes:
7. Climate TRANSPORTATION AND CIRCULATION: One major circulation Site:
Building Blocks
8. Orientation
9. Existing vegetation
route for direct access to the site; PAS road connecting Haile Garment Square to
10. Fruture expansion plan Alibira Monument Sqaure.
11. Proper land use and zoning PAS Road: Total width= 50m,
12. Ease of ownership
13. Land cost
: Pedestrian walk way = 4.5 meter
14. Compatibility to adjacent land use : Pavement types: Terazzo tiles
15. Site potential : Centeral greenery: width 50cm -150 cm
16. Accessibility to main road
17. Must be within urban area
Taxi terminal: 500 meters North of the site
18. Pedestrian access and circulation Bus terminal: 150 meters NNW of the site; Habesha Bus Ticket Office
19. Access to important existing One major circulation route for direct access to the site; PAS road connecting Haile
facilities
20. Access to utility abd service
Garment Square to Alibira Monument Sqaure.
PAS Road: Total width= 50m,
Site B- Location: : Pedestrian walk way = 4.5 meter
8°59'55"N,38°41'45"E : Pavement types: Terazzo tiles LEGEND:
: South of Bethel Hospital at a : Centeral greenery: width 50cm -150 cm PAS: Round About
distance of 621 meter. SAS: Site
Taxi terminal: 500 meters North of the site
Area: 69907.84 m2 CL: Terminals
Land Use: High density residen- Bus terminal: 150 meters NNW of the site; Habesha Bus Ticket Office
ENVIRONMENTAL ANALYSIS
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
VEGETATION COVER:
Site is covered with bushes of grass, and a three WARKA trees..
Sun angle (rise, set)
Site C: Location: 110.8, 249.3 102.8, 257.5 91, 268 74.5, 280.3 70.7, 289.42 66.3, 293.7 68.5, 243 76.3, 283.7 87.1, 263.6 98.8, 252.6 104.9, 251.3 113.2, 246.8

8°59'57"N,38°48'38"E Insolation (kWh/m2/d 5.57 5.95 5.97 5.94 6.07 5.38 4.79 4.84 5.44 6.01 5.95 5.67

: NNW of Gerji St. Mariam Temprature ( celestius) 18.54 20.3 22.21 22.36 22.84 20.63 19.06 18.97 19.57 19.67 18.84 18.04
Church at a distance of 182 11:39:30 11:45:29 12:04:26 12:18:53 12:29:45 12:44:36 12:35:14 12:23:10 12:09:05 11:45:30 11:42:30 11:36:32
Length of day
meters
Average rainfall (mm) 19.56 36.1 67.3 105.4 116.3 141.48 221.7 222.3 133.1 38.9 17.3 24.64
Area:170,433.54 m2
Humidity (%) 52 47 46 54 55 66 77 79 72 55 55 44
Land Use: Low density residential

PAS
Precipitation 4.32 4.21 3.94 3.64 3.60 3.93 3.76 3.41 3.1 3.39 3.74 3.98
Wind direction 90 150 120 120 0 0 300 0 0 120 120 0

SITE SELECTION MATRIX

Site selection elements Site A Site B Site C
SITE
Natural, environmental, and physical factors 265 245.8 213
LEGEND
Legal, institutional, administrative and aesthetic 32 33 31
Socioeconomic and cultural factors 67 69 44
NOISE:
Grand total 364 347.8 288 VIEW
WIND
Thus Site A: Area 50,000 M. Sq
Land Use: Low density residetial
Location: Haile Garment, Wereda 11, Nifas Silk Lafto Subcity
 URBAN PLANNING AND DESIGNING II
PHYSICAL CONTEXT: SWOT ANALYSIS
• Site is undergoing expansion and development thus LAND USE Opportunities and Strength Threats and Weakness
building are mostly made of concrete blocks. Neigh-
borhood east of the site is compromised of mostly • Location of the site: future expansions and • Transportation and circulation: lack of road heirar-
slum hosuing. developments chy
• Noatble infrastructure aroung the site include: Afri-
• Slope of the site: site can be fully utilized • Slope and drainage
can CDC Heaquarter, Nifas Silk lasft sub city office,
and Garment condominium. • Circulation and transportation: site has im- • PAS circulation route: noise and air pollution
mediate access to major circulation routes • Lack of entertainment area
• Soil type: Gravel indicates that the bedrock • Lack of social service institues such as health cen-
for laying the foundation is with a reasonable ters and educational center for children under the
distance age of seven
• Lack of vegetation
• Site and adjuscent land use compatibility
• Security isuue: existence of governmental
and international infrastructures

Site Zone: zone 4 & zone 2 SITE ANALYSIS IMPLICATION

Zone 2
- FAR: 5 to -, and 4.5 to 5.5.
• Drainage system
- Road type: CS and LS • Ease of land use, block and greenery design
- Building height: max height of 70 meters for FAR of 5 to -, and max • Proposal of collector and locat streets to increase road heirarchy on the project level
height of 35 meters for BAR of 4.5-5.5 • Incorporation of social services such as deucational institues and health centers
Zone 4
TOPOGRAPHY: SLOPE: 0.4% - FAR: min of 0.5, max of 3.5 • Easier ground work for foundation and the hieght limit 35m, indicates the use of shallow foundation
: Height A.S.L: 2,231m - Road types: CS and LS •
- Building height: max height of 35 meters

CONCEPTUAL FRAME WORK AND PROGRAM DEVELOPMENT

CONCEPT STATEMENT PROGRAM
The aim of this neighbourhood is to Minimu number of housing units: 400-725
create an evironment that encourages Built vs open space ratio: 40:60
pedestrian movements, create a child Pure residential block vs mixed and commercial
friendly environment, introduce green block: 55:45
Number of trees: 1 per 150 M.sq.
infrastructures and building as part of
Greenery area: min 30%
the future urban planning and create an
Decreasing vehicular circluation as much as pos-
environment that facilotates social in- sible
Site existing land use: Low density mixed residence teraction as well as a wholesome living Total circulation area: 10-15%
At least 60% of the permitted building function should be residence (60% of the environment.
FAR excluding parking space) The careful design of housing units,
Social service,worshiping place, manufacturing and storage <2000 m2, adminis- building block plan and open space is re-
tration,car parking building, public park,hotel are not obliged quired to achieve the above goals and
to mix residence objectives.
Corporate Headquarters (for own use only) are not obliged to mix residence
One tree (2mx 2m) every 100 m2 plot area
 URBAN PLANNING AND DESIGNING II
LAND USE
INITIAL LAND USE ALTERNATIVES
ALTERNATIVE THREE
ALTERNATIVE ONE ALTERNATIVE TWO

African CDC Headquarter Buffer Zone

African CDC Heaquarter Buffer Zone African CDC Heaquarter Buffer Zone

R-2
T-22 S-21

COLLECTOR
R-2 R-1
PAS

R-2
R-2

PAS

PAS
CB-1
21 R-3 R-3
CB- R-2 LOCAL
R-3 EA-17
EA-17 CB-21 EA-17 R-2
S-21 R-3

R-3 R-3 R-2

R-2
R-1 R-2
R-3 S-12 AD-1 S-1
R-2
COLLECTOR
Scale: 1:1500 Scale: 1:1500
LEGEND
LEGEND
Scale: 1:1500
RESIDENCE LEGEND
COMMERCIAL RESIDENCE
RESIDENCE
SOCIAL SERVICES COMMERCIAL
COMMERCIAL
GREENERY SOCIAL SERVICES
MIXED
PLAYGROUND GREENERY SOCIAL SERVICES
PARKING PLAYGROUND
CIRCULATION
GREENERY
CIRCULATION PLAYGROUND
SITE BOUNDARY
SITE BOUNDARY CIRCULATION
PROPOSED LAND USE GOVERNMENTAL
SITE BOUNDARY

African CDC Headquarter Buffer Zone

Black Map
PAS

PAS
LOCAL STREET-CUL-DE-SAC

S-1
R-1

CS-CUL-DE-SAC
R-1 AREA COVERAGE
SPACE AREA(M.sq) PERCENTILE Area Coverage (M.sq.) Percentile (%)
COMMECIAL 5,531.16 11.06% Blocks: 16,987.5 33.975
CB-1 MIXED 8,218.35 16.44%
Vehicular Road: 4543.85 9.09
RESIDENTIAL 18,041.24 36.08%
Open Space: 28,468.65 56.937
R-1 R-1 SOCIAL SERVICE 5,611.05 11.22%
EA-17 CIRCULATION 4,543.85 9.09%
GREENERY/PLAYGROUNG 8,054.35 16.11%
LEGEND
LEGEND LS Vehicular Road
R-1 R-1 COMMERCIAL
LOCAL STREET
MIXED
Blocks
S-2 Open Space
RESIDENTIAL
SOCIAL SERVICE
CIRCULATION
COLLECTOR STREET Scale: 1:1500 GREENERY/PLAYGROUND
cs
Scale: 1:1500
 URBAN PLANNING AND DESIGNING II
Building Block Plan
PAS
GREENARY/PLAYGROUND PLAN

PAS
LOCAL PARK CIRCULATION TRAIL PLAN

PAS
M
R-2 R-1 R-1 S-1

CS-CUL-DE-SAC

CS-CUL-DE-SAC

CS-CUL-DE-SAC
R-1 R-1

CB-1
R-1 R-1 R-1 R-1

R-1 R-1 LS LS

M R-2 R-1 R-1 S-2

cs cs cs
SCALE: 1:1500 Scale: 1:1500 Scale: 1:1500
LEGEND Area Coverage (M.sq.) Percentile (%) LEGEND Total green area cover-
RESIDENTIAL Commercial: 2,800 16.483 GREENERY POCKET SPACE age:11,227.71 M.sq. Household unit Table
MIXED Mixed: 3,486.5 20.524 LOCAL PARK
COMMERCIAL Residential: 7551 44.45 Block Types No. of storeys Area Total no. of housing unit
SOCIAL SERVICE Social Service: 3150 18.543 Pure residential type A 11 400 M. sq. 640
Circulation: 4543.85 9.09 1550 M.sq.
CIRCULATION Pure residential types B 11 172
1450 M.sq.
Percentile for the building blocks is measured out of total number of block area. Circulation Street Details Pure residential types C 11
1018.25 M.sq
158
Mixed Types A 11 160
725 M.sq..
Mixed Types B 11 70
Street Plan
PAS

Housing distribution based on income Percentile

Total number of housing: 1200 100%
Total number of housing targetting low income class: 742 61.83%
Total number of housing targetting middle income class: 340 28.33%
CS-CUL-DE-SAC

Total number of housing targettting high income class: 118 9.83%

LS

3D
cs
Scale: 1:1500 2m 1m 5-7m 1m 2m 1.5-3m
1.5-3m
Vehicular movement
LEGEND (Two way lane)

Pedistrian zone
Pedistrian zone

Frontage zone
furniture zone
furniture zone

MOTORIZED CIRCULATION
Frontage zone

NON-MOTORIZED CIRCULATION
Lanscape/
Lanscape/

BUILDING BLOCK