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butthevatmajorityoftheo
ebillio
pluspopulatio
liveso
lesstha
20perce
tofthela
dareathisisthefertilela
dthatca
supportfoodproductio
Howeverduetopopulatio
growthurba
izatio
a
deco
omicgrowththissamela
dmust
owsupportexte
sivetra
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systemsi
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dcommercialdevelopme
ta
di
creasi
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a
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davailableforagricultureshri
ksa
dtheproblemsoftra
sporti
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drawmaterialstoa
urba
populatio
i
creaseBytheyear2000itisestimatedthat70perce
toftheworldspopulatio
willi
habiturba
areas
Thesametre
dareevide
ti
Japa
whereapproximately80perce
tofthela
dareaismou
tai
ous90perce
tofthepopulatio
liveso
thecoastalplai
sa
deco
omicdevelopme
tisco
ce
tratedi
relativelyfeweco
omicdevelopme
tisco
ce
tratedi
relativelyfeweco
omicce
tersTheflatlyi
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disge
erallythemostfertilea
dishistoricallytheregio
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tOtherfactorsaddi
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de
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cludethetraditio
albuildi
gstylewhichislowrisea
dJapa
eselawthatco
tai
stro
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sformai
te
a
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lightAlsotoretai
domesticfoodproductio
capabilitytheJapa
esegover
me
thasprotectedagriculturalla
dfromdevelopme
tThecombi
atio
ofthesehistoricala
dpoliticalfactorstogetherwithastro
gmigratio
ofbusi
essesa
di
dividualstotheeco
omicce
tershascreatede
ormousla
dusepressureTheresultisa
astro
omicallyhighcostofla
di
cityce
tersashighasUS50000per
fsquaremetera
ddifficultyi
a
providi
ghousi
gtra
sportatio
a
dutilityservicesforthepopulatio
Typicalbusi
essemployeesca
otaffordtolive
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dmayhavetocommuteo
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dbuild
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sitli
esa
dutilizesLa
dcostsforsuchworkaresohighthati
ce
tralTokyothecostofla
dmayreprese
tover95perce
tofthetotalcostofaproject
Theproblemofla
dusepressuresa
drelatedeco
omiceffectsofhighla
dpricesareofgreati
teresti
thestudyofthepote
tialusesofu
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dspaceWhe
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dspacebecomeso
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esavailableItoffersthepossibilityoftheaddi
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eededfacilitieswithoutfurtherdegradi
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tWithouthighla
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atio
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Effectivepla
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