8/3/2019 Nairobi Poster
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FASTEST
GROWINGAREA
HOW DO YOU PLAN FOR THE
IN THE
WORLD?
THE ISSUE KEY TRENDS AND CHALLENGES
(Source:EarthForum,HoustonMuseumofNaturalScience;World
ResourcesInstitute data)
Extreme,5%ormore
peri-urban
Transitional zone with unique
sectoral interaction between
both rural andurban functions
Characteristics:
- Unplanned& often informal development
- Lack of infrastructure
- Administrative responsibilities unclear
- Local andregional inequalities intensified
- Limitedfertile landdivided
PERCENTAGE OF WORKFORCE EMPLOYED IN AGRICULTURE
URBAN GROWTH 2000-2005(Source:SWIAustria)
High,4%-5%
Medium,1%-4%
Low,under1%
Over75%
50 -75%
25 -50%
10 -25%
under10%
}
(Source:United Nations,World Population
Prospects,1998Revision)
(Source:Fairfield University)
PERCENTAGE OF WORLD
LIVING IN URBAN AREAS
Rural
10
8
6
4
2
Thika
Rd
0 2 .5 5 M il es
Agriculture
Mixed use
Institutional
Industrial
Mixed commercial/re sidential
Single familyhousing
Multi-familyhousing
Thika
Rd
0 2 .5 5 M il es
Agriculture
Mixed use
Institutional
Industrial
Mixed commercial/resi dential
Single familyhousing
Multi-familyhousi ng
0
1750
1800
1850
1900
1950
2000
2050
2100
AFRICA
20006.1 billion
Population (in billions)
Lessdevelopedcountries
Moredevelopedcountries
Urban
1950
2000
2030
29.7
47.4
61.1
WORLD POPULATION GROWTH 1750-2150
0 4 8 1 2 162 MILES
NAIROBI
RUIRU
KENYA
NairobicityboundariesNairobimetropolitanarea Ruiru
municipality
NAIROBI METROPOLITAN AREA
Thika
Rd
rapid urban growth...The UNestimates that within the next five
years,more than half of the
worlds population will be livingin urban areas.The global
population
is rapidly increasingandthe majority of this growth is
occurringin less
developedcountries.
...in peri-urban areasAfrica is the fastest growingarea in the
worldand predominantly
agricultural.The combination of explosive urban growth
pushing
outwardintopredominantly rural landhas ledtoa newtrend
of development on city fringes known as peri-urban areas.
NAIROBI
studio goalToanalyze andmake a series of select
recommendationsfor the regional planning
challengesof Ruiru in the context of the
rapidlygrowingNairobi metropolitan area
clientRuiru Municipal Council
approach Identify current situation of Ruiru in the
metropolitan context
Illustrate consequencesof current trends
Developstrategic sectoral recommendations
basedon an understandingof current trends,
challenges,andopportunities
1
2
3
Thika
Rd
0 2 .5 5 M il es
RAPID HOUSINGDEVELOPMENTS
0
SPRAWL OFINFORMALMARKETS
RUIRU
LAND USE MAP OF RUIRU MUNICIPALITY
0
study areaRuiru is located15 miles northeast of Nairobi alonga
major road.
land use
economy health transportatio
- L
- U
p
a
- Agriculture employs 80% of
workforce.Fewopportunities for
poor toenter formal economy.
Informal market does not provide
tax base
- Lack of relationshipbetween all
businesses andmunicipal council
- Infrastructure constraints hindering
productivity:roads/transport,
electricity,andwater/sanitation
- Inadequate sewage andwaste
disposal system
- Lack of public health facilities
- Significant air quality issues in
relation totransportation emissions.
Air quality study findings (433 ug/m3)
seven times worse than MexicoCity
andWHO Standard(65 ug/m3)
- Poor andinadequate ro
conditions
- Lack of public transpor
system.Roadinfrastructu
existingparatransit syste
offer significant opportun
efficiency improvements
- Lack of modal separati
rates of traffic mortality a
pedestrian safety
AIR QUALITY STUDY: PM2.5
