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2Sydneyspopulaonwillincreaseby1.6millionpeopleoverthenext20yearsrequiring664300newhomesor33200newhomeseachyear.Over50yearswewillneed1.66millionnewhomeswhichisthesamenumberthatwecurrentlyhaveinSydney.WEMUSTDOUBLETHENUMBEROFHOMESINSYDNEYOVER50YEARS.DoublingthenumberofhomesisamassivetaskforanycityandwillbeforSydney.Wecantdoublethelandareaofthecityasthatisrestrainedbymountainsandnaonalparks.WecoulddoublethedensityofallexisnghousinginSydneybutthiswouldchangethecharacterofallofthesuburbsandisunlikelytogetcommunitysupport.Whatwecandoislocatealotofthepopulaongrowthincentresandtransportnodesindenserresidenaltowers.Fortunatelyagrowingnumberofpeoplearepreferringacosmopolitanurbanlifestyleandapartmentlivingneartransportnodesisaperfectsoluonforthem.TheNSWGovernmenthasbeenencouragingdevelopmentincentresandinUrbanAcvaonPrecinctsbutfarmoreisneededtoaccommodateourfuturepopulaongrowth.MANAGINGPOPULATIONGROWTHWITHTOWERSThisissueofUrbanIdeasfocusesontheneedtobuildtowersattransportnodesasakeycomponentofmanagingpopulaongrowthinSydney.Wecannotleaveasuburbanscaleofdevelopmentaroundourrailstaons.Greaterheightforresidenalbuildingsintheselocaonswillgetmorepeoplelivingclosertoshopsmorepeoplelivingclosertoworkplacesandminimisetheuseofthecar.Tounderdeveloparoundstaonswillonlyputpressurebackontosuburbanstreets.Weneedtothinklongtermandensureeachrailstaonandtransportnodecontributestohousingpopulaongrowth.SCOPINGTHENUMBEROFTOWERSIhaveassumedthatonethirdofthe1.66millionnewhomesrequiredoverthenext50yearscouldbeintowersattransportnodes.Thismeans550000apartmentscouldbelocatedinthesesites.Thatcouldleadto5000towerswithanaverageof110apartmentsineach.WethenaskedStevePearseofdwpsutersandJoeRowlingofAllenJackCoerArchitectstoseehowthese5000towerscouldbedistributedandwhichtransportnodesshouldbeearlyadoptersontowers.Theirworkisincludedinthepublicaonataconceptuallevel.EXISTINGANDPROPOSEDEXAMPLESManymembersoftheUrbanTaskforcehavealreadybuiltorhaveplansforresidenaltowersrelatedtotransportnodes.TherstwinneroftheUrbanTaskforceDevelopmentoftheYearawardwasWintensdevelopmentcalledtheForumoverthetopofStLeonardsstaon.Sincethisprojecttherearemanymoreexamplesofqualitydevelopmentsclosetotransportnodes.ThisissueofUrbanIdeasprolesanumberofexisngandproposedprojects.STREETLEVELIMPORTANTWhiletalltowersgiveexcellentviewsfortheoccupantsanduselandecientlyitisalsoimportantthatthestreetlevelisacveandthatthepublicspacesarewelldesigned.Thelocaonoftowersattransportnodesmeanstheyareideallocaonstoincorporateretailoutletscoeeshopsthatworkwiththebustlingnumberofpeoplestreamingintoandoutoftherailstaon.Inthiswayresidenaltowerscanacvatethestreetlevelwithcommercialandretailfacilies.Ofcoursehavingalargenumberofpeopleinthetowersaddstotheviabilityofshops.SUPPORTINGPUBLICTRANSPORTSydneyhasalwaysstruggledwithitspublictransportsystemanditseecvenessinlowdensitysuburbanareas.Greaterdensityaroundtrainstaonsleadstolessrelianceoncarsandencouragesmorepeopletousepublictransport.Ifcommercialtowersarealsolocatedclosetotransportnodesandtoresidenaltowersthisshouldreducetravelmetoworkformanypeople.TOWERSNOTTHEONLYSOLUTIONTOGROWTHWhilethisissueofUrbanIdeasfocusesonTowersandTransportclearlythisisnottheonlywaytoaccommodateSydneysgrowth.AfutureissueofUrbanIdeaswilllookatmorehorizontalformsofdensitywithmid-riseapartmentsthatsitbelowthetreecanopy.HousingathirdofSydneyspopulationgrowthinresidentialtowersattransportnodesTheUrbanTaskforceiskeentohaveresponsestotheproposalsillustratedinthisissueofURBANIDEASandwewelcomecommentstoadminurbantaskforce.com.auChrisJohnsonAMChiefExecuveOcerUrbanTaskforceAustraliaCreditsCoverandbackpagephotographsbyJaimeSmalleyMapspages26and7byDanielFinkUrbanAgencyBuildingtowersattransportnodeswillprotectSydneyssuburbs.