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Megaprojects, Gentrification, and Tourism. A Systematic Review on Intertwined Phenomena

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Abstract

Within the neoliberal context of today's urbanism, a growing number of inner-city mega-projects aim to transform brownfield sites-accompanied by gentrification and tourism. However, there is no systematic review exploring the interplay between these phenomena. This paper aims to systemize the existing scientific contributions by means of a literature review. Using different databases , a total number of 797 scientific documents have been identified. After several screening steps, a final set of 66 studies was included in the review. I present an analysis from a quantitative and a qualitative perspective, exploring bibliometric aspects, concepts, methods, and relevant lines of discussion. The area studied is a relatively young and emerging field. Within the discussion, there is a strong dominance of countries located in the global north, with Spain, the UK, and the U.S. at the forefront. From a methodological point of view, qualitative and mixed methods are mostly applied. The discussion of megaprojects, gentrification, and tourism has an important descriptive focus, with main topics such as planning, justice, and motivations. There are considerable conceptual deficits, as one-quarter of the studies do not clearly explain their methods. Future research needs to find ways to enable knowledge transfer to planning practice.
Sustainability2021,13,12827.https://doi.org/10.3390/su132212827www.mdpi.com/journal/sustainability
Review
Megaprojects,Gentrification,andTourism.ASystematic
ReviewonIntertwinedPhenomena
MarcusHübscher
InstituteofUrbanDevelopmentandConstructionManagement,LeipzigUniversity,04109Leipzig,Germany;
huebscher@wifa.unileipzig.de;Tel.:+493419733768
Abstract:Withintheneoliberalcontextoftoday’surbanism,agrowingnumberofinnercitymega
projectsaimtotransformbrownfieldsites—accompaniedbygentrificationandtourism.However,
thereisnosystematicreviewexploringtheinterplaybetweenthesephenomena.Thispaperaimsto
systemizetheexistingscientificcontributionsbymeansofaliteraturereview.Usingdifferentdata
bases,atotalnumberof797scientificdocumentshavebeenidentified.Afterseveralscreeningsteps,
afinalsetof66studieswasincludedinthereview.Ipresentananalysisfromaquantitativeanda
qualitativeperspective,exploringbibliometricaspects,concepts,methods,andrelevantlinesofdis
cussion.Theareastudiedisarelativelyyoungandemergingfield.Withinthediscussion,thereisa
strongdominanceofcountrieslocatedintheglobalnorth,withSpain,theUK,andtheU.S.atthe
forefront.Fromamethodologicalpointofview,qualitativeandmixedmethodsaremostlyapplied.
Thediscussionofmegaprojects,gentrification,andtourismhasanimportantdescriptivefocus,with
maintopicssuchasplanning,justice,andmotivations.Thereareconsiderableconceptualdeficits,
asonequarterofthestudiesdonotclearlyexplaintheirmethods.Futureresearchneedstofind
waystoenableknowledgetransfertoplanningpractice.
Keywords:megaprojects;brownfield;largescaleurbandevelopmentprojects;gentrification;
tourism;literaturereview
1.Introduction:AnEmergingFieldofStudy
Largescaleurbanprojectsareanessentialelementintheneoliberalcity.Megapro
jectsworldwidedocumentthis,reportingfromtheGuggenheimMuseumandthe“Cin
derellatransformation”ofBilbao[1],tothebusinessfriendlyCanaryWharf,London[2]
andtheexporthit“BarcelonaModel”[3].
Therisingnumberofsuchprojectsgoesbacktotwoparallelandoverlappingtrends.
First,theeconomictransitiontowardpostindustrialsocietiesturnsformerlyindustrially
usedareasintobrownfieldsites,which,oftenlocatedinstrategicallyimportantdistricts,
citiesneedtocopewith[4].Second,theadvancingneoliberalizationhassharpenedcom
petitionbetweencitiesonaglobalscale[5].Inthiscontext,urbanmegaprojectsarere
gardedaswelcomeopportunitiestogivethesecitiesafacelift,establishamarketableim
age,andboosttheurbaneconomy[6].Bydefinition,theseprojectsseektorenew,regen
erate,orupgradetheareawheretheyarebuilt.Simultaneously,theyoftenfostertouristi
fication,segregation,orgentrificationthat,onceunleashed,aredifficulttotame.
Giventheobviousrelevanceofthistopicincitiesworldwide,itisnotsurprisingthat
researchonlargescaleurbandevelopmentsisalsoskyrocketing.Thenumberofscientific
publications(searchtermswere“megaprojects”AND“largescaleurbandevelopment
projects”AND“brownfield”)hasoctuplicatedfromonly76in2010to610in2020onthe
WebofScience[7].Theexpandingscientificinteresthasfueledvariouskeyworksinthe
literaturefromdifferentbackgrounds,forexample,management[8],planning[9],archi
tecture[10],orurbanism[6].Althoughadjacentfieldsofresearchsuchasgentrificationor
Citation:Hübscher,M.
Megaprojects,Gentrification,and
Tourism.ASystematicReviewon
IntertwinedPhenomena.
Sustainability2021,13,12827.
https://doi.org/10.3390/su132212827
AcademicEditors:NađaBeretić,
ArnaldoCecchiniandValentina
Talu
Received:19October2021
Accepted:16November2021
Published:19November2021
Publisher’sNote:MDPIstaysneu
tralwithregardtojurisdictional
claimsinpublishedmapsandinstitu
tionalaffiliations.
Copyright:©2021bytheauthor.Li
censeeMDPI,Basel,Switzerland.
Thisarticleisanopenaccessarticle
distributedunderthetermsandcon
ditionsoftheCreativeCommonsAt
tribution(CCBY)license(https://cre
ativecommons.org/licenses/by/4.0/).
Sustainability2021,13,128272of23
urbantourismaremuchmoreestablished,theintersectionbetweenthesetwofieldsand
megaprojectsisrelativelynew.Thisisthegapthatthispapershallhelptofillbysystem
izingthealreadyexistingknowledge,whichexpandsatastrongpace.Todate,therehas
beennosystematicreviewofstudiesabouttherelationshipbetweenlargeurbanprojects,
gentrification,andtourism,whichiswhyIarguethatanoverviewcontributestoabetter
understanding.
Theaimofthispaperisnottodiscusstherelationshipbetweenmegaprojects,tour
ism,andgentrificationindepth.Rather,itistosystemizecontributionsthathavealready
beenmadeandserveasasummarizingguidethroughtheongoingdiscussionthattakes
placeintheseincludedstudies.Iwillstructurethisdescriptivereviewasfollows.Section
twopresentsthestepstakenduringtheliteraturereview.Sectionthreediscussesthere
sultsandcontainsbothabibliometricandacontentrelatedanalysis.Itisfirstlyrevealing
toobtaininsightsintothe“when,whereandhow”ofthesestudies.Iwillparticularly
documentthespatialdimensionsinthediscussions.Secondly,withregardtocontents,
theobjectiveistoidentifythemostrelevanttopics,conceptsandframespresentedand
exploretheexistinglinesofdiscussion.Sectionfourdrawsaconclusionbasedonthese
findings.
2.MaterialsandMethods:ConductingtheReview
Conductingasystematicliteraturereviewconsistsofseveralsteps.Istronglyrelied
onthesuggestionsmadebyGreenetal.[11],RowleyandSlack[12],andparticularlyXiao
andWatson[13],whoprovidedguidanceonreviewsinplanningresearch.Apartfrom
that,IalsofollowedthePRISMA2020guidelines,whichareasetofrequirementstofacil
itatesystematicreviews[14].Onthatbasis,Iunderstandsystematicreviewsasaproce
dureto“collateandsynthesizefindingsofstudies”[14]inorderto“distilltheexisting
literatureinasubjectfield”[12].
Thefirststepsinareviewaretodefinetheproblemanddevelopareviewprotocol
[13].Basedonmyresearchquestionpresentedinsectionone,thispaperaimstoexplore
therelationshipbetweenmegaprojects,gentrification,andtourism.Hence,theseterms
arethekeywordsthatIusedinsearchengines.Myunderstandingoftheseconceptsis
basedonDiazOruetaandFainstein[6],Flyvbjerg[8],andSwyngedouw[15],whomade
importantcontributionstothesephenomena.Inthispreliminaryresearch,Ialsofound
thattermsarenotusedconsistently—particularlyinthecaseofmegaprojects.Thereare
othertermsapplied,notalwaysinasynonymouswaythough,suchas“largescaleurban
developmentprojects”[15].Theremightevenbecaseswheretheauthorsdescribemega
projectswithoutclearlylabellingthemassuch,asisthecasein“brownfield”redevelop
mentprojects.Idecidedtoalsoincludethesetwokeywordsinmysearchandlookedfor
scientificcontributionsthatcontain“gentrification”,“tourism”,and“megaprojects”(or
oneoftheabovementionedsynonyms)byconnectingthesetermswith“AND”operators.
Withregardtoconductingthereview,theelectronicdatabasesmustbeselected.Ac
cordingtoGreenetal.[11],itisessentialtocombineseveralsearchenginessincenoneof
themcontainalloftherelevantdocuments.Inthisliteraturereview,IcombinedGoogle
Scholar,WebofScience,ProQuest,SocIndex,andtwouniversitylibrarydatabasesthatI
hadaccessto.Incasethereweremanyresults,Iselectedthefirst100hits,sortedbyrele
vance.
AsFigure1shows,Istartedthereviewwith797hits,whichIfoundinAugust2021.
Allofthemwereimportedtoaliteraturemanagementprogram(Endnote,versionX9.3.3),
whichdetected192duplicates.Inthefollowingscreeningprocess,Iappliedatwostage
protocol[13].Fortheremaining605entries,Iscannedthetitle,abstract,andkeywords,
andexcludedrecordsthatwerenotrelevanttomyresearchquestion.IncaseIwasunsure,
Ikeptthetextinthereview,basedonXiao’sandWatson’s[13]recommendation.
Sustainability2021,13,128273of23
Figure1.FlowdiagramforthesystematicreviewbasedonPRISMAprinciples.Note:UniversityLibrariesareanony
mized.
Theremaining308recordswerescreenedforretrievalandeligibility,basedontheir
fulltexts.Exclusioncriteriawere,forexample,nonEnglishlanguageandalackofacces
sibilityorquality(Figure1).Textsthatdidnotundergopeerreviewedprocedureswere
alsoeliminated.IexcludedstudieswhereIparticipated,toreducepersonalbias,butI
addedthemwhenputtingtheresultsintoabroadercontext.
Apartfromthat,rulesforinclusionwereapplied.Ionlyincludedthosetextsinmy
reviewthathadobviouslinkstothethreemainconcepts(megaprojects,gentrification,
tourism).With66finaltexts,Iperceivedthatthenumberofstudiesincludedwasalready
high,whichiswhyabackandforthsearchwasnotadded.
Thisprocedureimplicatesseverallimitations.Basedonthestrictselectionofthe
searchterms,thereviewdoesnotincludestudiesthatmighthavethesameresearchin
terestbutusesdifferentwording.Moreover,onlyopenaccesscontributionsandstudies
availableviatheuniversity’slibrarycouldbeaccessed,whichreducedthenumberofpos
siblerecordsby22%.Afurtherpointofdiscussionisthedecisiontoonlyincludepeer
reviewedandhighqualitycontributions.Thatmeansthatmostoftheconferenceproceed
ingsandgreyliteraturewereexcluded.Hence,thereviewpresentedherecannotclaimto
discoverthebreadthofstudiesbutratherrepresentsaspecificsection.Inthisrespect,a
literaturereviewcontainsthesubjectivedecisionsmadebytheresearcherandtheresults
willdifferifanyoftheabovementionedfactorsarealtered.However,revealingthechosen
Sustainability2021,13,128274of23
procedureincreasesthereplicabilityofthisreviewandthisiswhatIregardasgoodsci
entificpractice.
Thefinalstepwastoanalyzethedocumentsincludedandreportthefindings[13].
Here,IappliedtechniquesofaqualitativecontentanalysisbasedonMayring[16].To
developthecategorysystem,Iappliedtwoapproaches(deductiveandinductive).Iset
upcategoriesthatderivefromtheresearchquestionandthebasicliteraturethatIusedto
determinethekeywords(deductive)[17].Therewereseveralframeworkcodesthatwere
setupbeforethereviewwascompiled,forexample,theplaceofthecasestudies,methods
applied,objectives,projectdescriptions,etc.[11].Istartedanalyzingthedocumentsand
completedthecategorysystembasedonthematerial(inductive)[17].Thesecodeswere
rathercontentrelated.Afterthefirsttenpapers,thecodesystemseemedsaturated;itdid
notgrowextensivelyfromthatpointon.Consequently,Icheckedthesefirstpapersagain,
whichshouldbeperformedafterhavingatleast10%ofthematerialcoded[18].Apart
fromthat,Ialsoworkedwithmemos,whichmeanttakingnotesduringtheentireprocess,
andlaterusedthesethoughtsfortheanalysis[12].Iusedthecodesinordertodefine
overarchingthemesamongthedocumentsandalsotodrawcomparisonsbetweenthetext
segments[19].Inthisprocess,Ideductedgeneraldescriptions,alsoknownasabstraction
“throughgeneratingcategories”[20].
3.Results
Referringtothefindings,thispapercontainsbothaquantitativeandqualitativeap
proach.Firstly,aspectssuchasthepublicationframeworks(yearofpublication,medium,
placesofthecasestudies,etc.)wereassessedusingdescriptivestatistics(Section3.1).Sec
ondly,Igatheredthestudies’conceptsandplaces(Section3.2),ontheonehand,andover
archingtopics[13],linesofdiscussion,aswellasdifferencesandsimilaritiesbetweenthe
studies[11],ontheotherhand(Section3.3).
3.1.BibliographicAnalysis
Thebibliometricanalysisexploresthedocumentsincludedfromaquantitativepoint
ofview[21].Idosoinadescriptivewayandputthefocusonthetypesofpublications,
thegeographicalplaceofthecasestudies,andthetopicsnamedinabstractsandkey
words.
3.1.1.Publications
Researchonmegaproject,gentrification,andtourismisadynamicfield,withacon
siderableincreaseincontributionsduringthelastfewyears.Thisgrowthsetinafter2010.
Between2011and2021,85%ofallthestudiesincludedwerepublished.Indeed,similar
evolutionshavebeenobservedinotherliteraturereviews,forexample,oneaboutgentri
ficationresearch[22].Thismightbelinkedtothegeneralincreaseincontributionsinthe
fieldofgentrification.Thisgrowthmightbetracedbacktotheimpactsof2008sfinancial
crisis.Indeed,researchershavearguedthatlargescaleurbanprojectswereusedinthe
crisis’aftermathtopromotegrowth[23,24].Asimilarlogicisobservedwithregardto
tourism,forexample,inSpanishcities[25].Thisprovesthetopicalityofthesephenomena,
particularlyagainstthebackgroundofthecurrentCOVID19crisis.Duringthelasttwo
decades,2019standsoutmost:21%ofallthestudieswerepublishedinthisyear[26].The
searchenginesconsulteddidnotfindcontributionspublishedpriorto2002.Ofcourse,
thisdoesnotnecessarilymeanthatthephenomenondidnotoccuruntilthen.Rather,it
indicatesthatthekeywordsproposedinthisreviewdidnotaddressolderstudies,which
showsanotherlimitationofmyapproach.
Comparingtheauthorshipsofthetextsrevealedaquitebalancedresearchlandscape,
evenwhencomparedtootherreviewsonneighboringtopics[22].Therewasonlyone
author(Doucet)whoappearedthreetimesinthereview[27–29].Fiveauthorshadtwo
Sustainability2021,13,128275of23
records.Onthecontrary,avastmajority—morethan80%—waswrittenbyauthorswith
onlyonestudy.
Withregardtothetypeofpublication,83%ofalltherecordsarepapersinscientific
journals,only17%arebookchapters(Figure2).Aboutonethirdofthesepapers(64%)
werepublishedinjournalsthatonlyoccuronceinthereview.Again,thisunderlinesthe
diversityofthefield,asthereare40differentjournalsintotal.Furthermore,journalspos
sessarangeofimpactfactors.Althoughaboutonefifthofthejournalsarenotlistedon
theWebofScience,thereisalargeshareofcontributionswithlowerfactors(35%under
2.0),andaconsiderablesharewithahighfactor(28%over4).
Figure2.Detailsonincludedpublications.Note:impactfactor(right)onlyreferstojournalpapers.
Ialsoreflectedonwhichofthesearchenginesprovidedthebestresults.Figure3
revealsthatGoogleScholar,ProQuest,andUniversityLibrary#1foundlargesharesof
thetotalnumberofrecords.Moreover,thedatabasesperformdifferentlywhenitcomes
toefficiency,i.e.,theshareofrecordsincludedinthereview.WhileGoogleScholar,Uni
versityLibrary#1,andtheWebofScienceevenslightlyincreasedtheirshareinthefinal
review,ProQuest,UniversityLibrary#2,andSocIndexdecreased.Intotal,theWebofSci
encehadthemostefficientperformanceofall,asithadahitrateof16%.GoogleScholar’s
hitratewasonly8%;however,itfoundthelargestnumberofstudies,whichstillcontrib
utessignificantlytothisreview.Norrisetal.drewthesameconclusionintheircompara
tiveanalysisofdifferentsearchengines,namelythatGoogleScholarperformsthebest
[30].However,otherauthors[13]andFigure3showthatusingavarietyofsearchtools
contributessignificantlytofindingadiversesetofrelevantdocuments.
83%
17%
Not listed on Web of Science
Imp a ct Fa ct or < 2 .0
Imp a ct Fa ct or 2.0 < 4.0
Impact Factor 4.0 < 6 .0
Imp a ct Fa ct or > 6.0
Paper in Journals
Type of Publication Impact Factor
Book chapters
35%
22%
20%
15%
8%
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Figure3.Hitsondatabases.Left:totalrecords,beforescreening.Right:recordsincludedinthelit
eraturereview,afterscreening.
3.1.2.PlacesandProjects
Thisparagraphlooksatthegeographicalscaleofstudiesincludedinthereview.
Therearetwodimensionstothat.Iwillfirstinvestigatethecitiesandprojectsthatare
citedwithinthedocumentsofthisreview.Theaimhereistoidentifythemostvisible
megaprojectsworldwideandtheirspatialdistribution.Secondly,Iwillchangetheper
spectiveandfocusoncitiesandprojectsthatserveascasestudiesintheliterature.
Figure4revealsthevisibilityoflargescaleurbanprojectswithintheacademicdis
course.Morethanonequarterofalltheprojectscited(26%)arelocatedinMediterranean
countries,wheretourismtypicallyplaysanessentialroleinurbandevelopment.The
mapsalsoshowthatcountriesofthesocalled“globalnorth”accountfortwothirdsofall
theprojectsnamed.AlthoughAsiancountries(14%)andtheGulfregion(11%)haveim
portantshares,otherareas,suchasSouthAmerica(2%)orSubSaharanAfrica(1%),rarely
appear.
Sustainability2021,13,128277of23
Figure4.Thegeographiesofstudiesincludedinthereview.Thenumberofcitedprojectspercountry(bubbles)andnum
berofcasestudiespercountryinthereview(dots).Ownelaboration.
ThecountrieswithmostcitationsareSpain,theU.S.,andtheUnitedKingdom.In
particular,thecaseofSpainspeaksforitself.Asarelativelysmallnationwithonly14%of
thepopulationoftheU.S.,itisthecountrythatreachesthehighestnumberofproject
referenceswithinthisreview.ThisalsogoesfortheUnitedArabEmirates,acountrywith
barely10millioninhabitants,butaconsiderablenumberofcitationsbasedonAbu
Dhabi’sandDubai’smegaprojects.
Thisisalsoreflectedinthestatisticsonthecitiescited(Table1)—withLondon,Bil
bao,andBarcelonabeingthetopthreecitiesdiscussed,allofwhicharelocatedinEurope.
ThemostreferencedprojectsareBilbao’sGuggenheimMuseum,followedbyCanary
Wharf,London.
Table1.Mostcitedcitiesandprojectswithinthereview.Ownelaboration.
MostCitedCitiesMostCitedProjects
#CityHits#ProjectHits
#1London25#1Guggenheim,Bilbao16
#2Bilbao22#2CanaryWharf,London8
#3Barcelona16#3Docklands,London5
#4NewYork15#4HafenCity,Hamburg4
#5Dubai11#5InnerHarbor,Baltimore4
#6Istanbul9#6LaDefense,Paris4
#7AbuDhabi9#7AtlanticYard,NewYork3
#8Paris7#8GoldenHorn,Istanbul3
#9Shanghai7#9Guggenheim,AbuDhabi3
#10Singapore6#10PudongDistrict,Shanghai3
Apartfromthecitedcities,Ialsoexploredwhichcitiesareanalyzedbymeansofcase
studieswithinthereview.Intotal,78projectsarediscussed.Almosthalfofthisgroup
(49%)isstudiedatleasttwotimes,therestarestudiedonlyonce.Again,thestatistics
Sustainability2021,13,128278of23
revealthestrongroleoftheUK,theU.S.,andSpain(Table2).Althoughitwasthecity
mostcited(Table1),Bilbaodoesnotdominatetheranking(Table2).Incontrast,itisRot
terdamandtheNetherlandsthatreachthetoppositionsinbothtables,butneitherofthem
belonginthetop10listofthecitedprojectsorcities.Here,thedominanceofcasestudies
inthe“globalnorth”isevenmoreobviouscomparedtothereferencesmade:70%ofthe
casestudiestakeplacethere.
Table2.Citiesandcountriesanalyzedbymeansofcasestudieswithinthereview.
CitiesAnalyzedinCaseStudiesCountriesAnalyzedinCaseStud
ies
#CityCountryHits#ProjectHits
#1LondonUK4#1Spain11
#2RotterdamTheNetherlands4#2UK10
#3ValenciaSpain4#3USA6
#4BarcelonaSpain3#4TheNetherlands5
#5BilbaoSpain3#5China4
#6HongKongChina3#6Germany4
#7MexicoCityMexico3#7Mexico4
#8BelgradeSerbia2#8Turkey4
#9DohaQatar2#9France3
#10GlasgowUK2#10Qatar3
Figure5insinuatesarelationshipbetweenthenumberofcasestudiespercountry
includedintheliteraturereview,ontheonehand,andthenumberofcitedreferencepro
jects,ontheotherhand.Thisservesasacontrolproxyfortherepresentativenessofthe
casestudiesselected.Forexample,thereisnocountrywithmanycitationsthatdidnot
alsoappearinacasestudywithinthereview.Thecountrieslocatedabovethetrendline
haveacasestudysurpluscomparedtothosecountriesbelowtheline.Thismeansthatthe
U.S.ortheUnitedArabEmirates(UAE),forexample,arecitedquiteoften,althoughthere
arenotasmanycasestudiesinthesecountriescomparedtoothers.Thissuggeststhat
projectssuchasBurjKhalifa(Dubai)orAtlanticYards(NewYork)havehighvisibility
withintheacademicdiscussion.Contrarily,megaprojectsinTheNetherlands,Germany,
andtheUK,appearinarelativelyhighnumberofcasestudiesbuthavelessvisibility
withintheacademicdiscussion.Figure5alsoprovesthepolarizedsettingofthecasestud
ies.Spain,theUK,andtheU.S.areaheadofallothercountries,ontheonehand,while
thereisalargegroupofcountrieswithonlyoneortwocasestudies,ontheotherhand.
OnlytheUAEassumesamedialposition.
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Figure5.Megaprojectspercountry.Referencestoothercasesvs.projectsanalyzedincasestudies.Ownelaboration.
3.1.3.KeywordsandAbstracts
Exploringkeywordsandabstractsquantitativelyisafirststeptoapproachthecon
tentsoftherecordsincluded.Bothtypesofdatarevealwhichkeytermsandconceptsare
linkedtothetexts—fromtheauthors’perspectives.Inthispaper,Iassesstheseaspectsin
ordertoextractcategoriesforthequalitativeanalysis(inductive)andgatherfirstimpres
sionsofrelevantresearchtopics.
Withregardtokeywords,theterm“urban”isusedmost.Outofthe699keywords
included,itappeared65times,andalmosttwothirdsofalltherecordsuseit(Table3).I
explainthishighfrequencywiththemultiplemeaningsoftheterm.“Urban”isunder
stoodasthespatialscale,wheretheresearchedphenomenatakeplace.Apartfromthat,it
alsoentailsaconceptualmeaning,andiscombinedasanadjectivewithotherterms,such
as“renewal”or“project”.
Table3.Statisticsonkeywordsused.Ownelaboration.
RankKeywordFrequencyRelativeFrequency
[%]Documents
Shareof
Documents
[%]
1Urban659.33465.4
2Planning233.32038.5
3Social131.91223.1
4City142.01121.2
5Development121.71019.2
6Regeneration111.61019.2
6Sciences111.61019.2
7Waterfront101.41019.2
8Megaprojects91.3917.3
9Public91.3815.4
10Gentrification81.1815.4
11Redevelopment81.1713.5
12Politics71.0713.5
13Studies91.3611.5
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14Geography71.0611.5
14Renewal71.0611.5
15Cities60.9611.5
15Mega60.9611.5
15Project60.9611.5
15Regional60.9611.5
15Space60.9611.5
||||||
18Tourism40.647.7
24Brownfield20.323.8
Interestingly,thesecondmostimportantkeywordisplanning”(usedby39%ofthe
records),whichindicatestheimportanceofthisfieldasaresearchperspective.Thefirst
placerelatedkeywordis“waterfront”(rank7),whichindicatestherelevanceofconver
sionareasnearblueinfrastructuresinonefifthofthetextsincluded.
AnotherstrikingfactisthatthekeywordsIusedinsearchenginestofindtherelevant
literature(seeSection2)playminorrolesinTable3.Theterm“brownfield”onlyoccurs
in4%ofthedocumentsandtourismin8%.Outofallthekeywords,“gentrification”
reachesthehighestposition(rank10).Thisobservationinsinuatesthatgentrification,
tourism,andmegaprojectsmightindeedbetheconceptualframeworkofmanystudies,
whileotherspecificaspectsareresearchedindetail.
Regardingthekeywords,IalsousedtheVOSviewertoanalyzetheappearances(Fig
ure6).VOSviewerisaprogramdesignedtovisualizebibliometricitems[31].Thevolume
ofthelabelsisdeterminedbytheweightofeachitem.Moreover,thealgorithmclusters
theitemsaccordingtotheircooccurrence.Thismeansthatclosenessrepresentsstronger
relatedness[32],butthelinesalsorepresentlinksbetweenthekeywords.
Sustainability2021,13,1282711of23
Figure6.Termmapshowingthecooccurrenceofkeywordsused.Top:Networkclusteredbythematicgroups.Bottom:
Networkclusteredaccordingtotheiryearofappearance.OwnelaborationbasedonVOSviewer(version1.6.17)[32].
Forthistermmap,316keywordswereusedintotal.ContrarytoTable3,thekey
wordswerenotsplitup,whichmeansthatforexample“urbanplanning”wasnotdivided
into“urban”and“planning”.Theminimumnumberofappearanceswasthree,which
meansthat17keywordsmetthethreshold.Theclustersdonotmatchperfectlyfroma
thematicperspective,astheyaregeneratedautomatically.However,Iusedthismapasa
Sustainability2021,13,1282712of23
complementarytooltoenrichtheanalysis.InthetopmapinFigure6,threethematicclus
tersareidentified.Clusterone(red)mainlycontainsstudyareassuchassocialsciencesor
urbanstudies,showingthebackgroundofthedocumentsusedinthereview.Clustertwo
(black)isalarge,butratherdispersegroupthatcontainsplaces(cities),andalsoprocesses
suchasurbanrenewalandurbanplanning.Clusterthree(blue)onlyincludesthreecon
cepts,namely,megaprojects,gentrification,andurbanregeneration,representingthose
studiesthatanalyzeprojectsinthecontextoftheircity’sdevelopment.
ThesecondmapdisplayedatthebottominFigure6containsthesamekeywordsbut
theyarereferencedbytheiryearofpublication.Withonly66documentsincluded,the
datasetisrelativelysmallandrepresentativitymustbequestioned.However,thismap
indicatesashiftintheusageofterms.Theolderkeywords(around2010)mainlycontain
disciplines(urbanstudies,socialsciences),whiletheyoungerkeywords(around2014)
focusonobjectsorprocesses(megaprojects,cities,urbanplanning).Thistrendmightbe
confirmedforlargersamplesinfutureresearch.
Figure7visualizesthequantitativeanalysisoftheabstractsandcontainswordsthat
occurredatleasttentimes.Thesewordsareclassifiedintothefollowingfivegroups:
stakeholder,process,scale,concept,andproject.ComparedtotheVOSviewermapabove,
IfindFigure7lessconceptual,buteasiertointerpret.Hence,Iusedtheseumbrellaterms
tobeginconstructingthecategorysystem,onwhichthefurtherqualitativeanalysiswas
based(seeSection3.3.).
Figure7.Wordcloudbasedonallabstractsincludedinthereview.Ownelaboration.
3.2.Concepts
ApartfromthemorequantitativeaspectsdescribedinSection3.1,Iwantedtocover
theconceptualaspectsofthisreview,referringtomethods,researchobjectives,thetheo
reticalframe,andthelocationoftheprojectscitedwithinthecities.
3.2.1.Methods
Iwillfirstlyillustratewhichconceptstheincludedstudieshave.Thereisaclearma
jorityofcasestudies(Figure8),whichaccountforalmost82%ofthetextsanalyzed.Con
trarytothat,onlyabout10%aremeretheoreticalcontributions.Thisindicateshowthe
discussiononmegaprojects,gentrification,andtourismhasastrongprojectrelatedap
proach.Itracedthisbacktotheemergingcharacterofthisfieldofresearch(Section3.1.1).
Itseemslogicalthat,inaninitialphaseofthediscussion,researchersexplorethephenom
enabymeansofcasestudies,whilethetheoreticbackgroundisyettoevolve.However,
35%ofallthecasestudiesapplyacomparativeapproachincludingprojectsinatleasttwo
differentcities,whichseemstobethefirststepingeneratingconceptualideas.
Figure8alsoshowsthathalfofthecasestudiesrelyonqualitativemethods.Only
11%ofthecasestudieshaveaquantitativeapproach.About26%usedocumentanalyses,
Sustainability2021,13,1282713of23
butonly6%applyitasasinglemethod,therestcombineitwithotherinstruments.In
fact,conductingbothdocumentanalysisandinterviewsisthemostcommonapproachto
thecasestudies—almostonefifthchoosethiscombination.About28%ofthestudiesdo
notspecifynordiscusstheirmethods.
Figure8.Methodsandconcepts.Left:conceptsofallincludedstudies.Right:methodsappliedincasestudies.Note:per
centagevaluescannotbeaddedbecauseacasestudymightuseacombinationofmethods.Ownelaboration.
3.2.2.Objectives
Scanningthroughtheresearchconceptsofthestudiesselected,Iidentifiedthefol
lowingthreegroupsofobjectivesthataretypicallypursued:descriptions,evaluations,
andreflections.Theseobjectivesoverlapinsomestudies,inothers,theyoccurseparately.
Firstly,ascasestudiesrepresentthemajorityofcontributionsinthereview,itisnot
surprisingthatonemainobjectiveistodescribetheprojects.However,emphasisvaries
strongly.Manystudies“describeandanalyzethetransformation”[33]provokedbylarge
scaleprojects.Furtheraspectsrangefromplanningprocesses[34],stakeholders[27],and
motivations[35],tothedesignofmegaprojects[36].
Secondly,thereisanimportantbodyofliteraturethataimstoevaluatetheimpacts
oftheseprojects.Byplacingthemegaprojectsintotheircities’contexts,theresearchfocus
isput,forexample,on(socialandenvironmental)justiceandpublicprotests.Inthisre
spect,someresearchersexplicitlyexploretherelationshipbetween“urbanpublicpolicy
andgentrification”[37].Furthermore,theexpectedpositiveimpactsarealsoresearched.
Thesocalled“trickledowneffect”isanarrativethatmanymegaprojectsprovide,butit
isalsoonethatisquestionedbyscholars[38].
Thirdly,studiescriticallyreflectnotonlytheprojectsbutalsotheframesandcondi
tions,wheresuchlargescaledevelopmentsemerge.Here,megaprojectsaredescribedas
“localproductionsoftheglobal”[39],referringtoglobalizedtrendssuchastheentrepre
neurialturn[40,41],theneoliberalurbanhegemony[42],intercitycompetition[43],or
financialization[3].
3.2.3.TheoreticalFrame
Analyzingthetheoreticalframesusedbythestudiesisanotherwaytoapproachthe
review.Thereisalargevarietyoftheoriesusedandnotallthestudiesclearlyindicatethe
frametheyhaveapplied.Table4summarizesthefourmostimportantframesused.
Firstly,thetheoreticalumbrellaconceptwiththemostcontributionsis,byfar,neolib
eralization.RepresentativessuchasMoulaert(55%),Harvey(55%),orSwyngedouw
(59%)arecitedamongmorethanhalfofthedocumentseach.Withinthisframe,Iidenti
case studies other concepts
theoretical discussions
0
10
20
30
40
50[%]
qualitative methods unclear document analysis quantitative quantitative &
qualitative
50.0
81.8
7.6
10.6
27.8 25.9
11.1
3.7
concepts methods used in case studies
Sustainability2021,13,1282714of23
fiedthelargestvarietyofaspects.Thelinkagebetweenmegaprojects,tourism,andgen
trificationisassociatedwithurbanentrepreneurialism[27]andprivatization[44],the
globalcompetitionbetweencities[45],orformsofgovernance[23].
Secondly,asmaller,butstillimportantframeiscultureandimage,withmainauthors
suchasSharonZukinandRichardFlorida.Botharecitedbyaboutonequarterofthe
documents.Thestudiesthatrefertothisframeinterpretlargescaleprojectsasameansto
reshapeor“reimagine”[36]thecity,orhighlighttheessentialroleofcultureinurban
development[40].
Urbanjusticeisathirdframeusedbythestudies,whichexplores“questionsthat
pertaintothegeographicscaleatwhichjusticemaybeproduced,thenatureofeconomic
versusotherformsofinjustice,theuniversalityoftheconcept,andtheimportanceofpro
cessversusoutcomes”[34].WithauthorssuchasPeterMarcuse(16%)andEdwardSoja
(11%),theseconceptsareratherspecificandnotappliedasoftencomparedtoothercon
cepts.However,thisframecontainssomestrongandvisibleaspectssuchasenvironmen
taljustice[46]orgentrificationasaquestionofsocialandspatialjustice[47].
Fourthly,anotherperspectivedealswithplanningandpolicyfromaverypractical
pointofview.Here,largescaleprojectsareintegratedwithinurbanprogramstostopur
bandecline[48],initiatebrownfieldregeneration[49],or“makecitiescompetitivewith
suburbs”[50].
Table4.Importantframesusedinstudiesandtheirsubtopics.Ownelaboration.
FrameAspectsSources
Neoliberalization
Competition[45,51]
Entrepreneurialism[27,52,53]
Privatization[44]
Governance[23]
Worldingcities[54]
NeoGramscianperspective[55]
Postpoliticsandpostdemocracy[56]
CultureandImage
Urbanimageries [57]
“reimagining”or“reimaging” [36]
“brandingcampaigns” [58]
Creativecities[40]
Landscape[46]
Culturalregeneration [59]
(Urban)Justice
Distributivejustice [50]
Gentrification[47,60]
Environmentaljustice [46]
Socialjustice [34,61]
PolicyandPlanning
Revitalization [38]
(Innercity)regeneration[62]
(Brownfield)regeneration[2,49]
Redevelopment [50]
Anotherpartofunderstandingthetheoreticalframeistoanalyzethekeytermsused
todescribetheprojects.Ibeganthisliteraturereviewbydetermining“megaprojects”,
“largescaleurbandevelopmentprojects”,and“brownfield”askeytermsandusedthem
Sustainability2021,13,1282715of23
tosearchforliteratureindifferentdatabases.Itisrevealingtoseehowthefinal66docu
mentsactuallyusetheseterms.Figure9revealsthataminorityofrecordsappliesonly
oneoftheconcepts.Onthecontrary,halfofthetextsuseboth“megaproject”and“large
scaleurbandevelopmentproject”synonymously.About12%evenadd“brownfield”asa
thirddescription.Comparingthethreetermswitheachother,“brownfield”istheonethat
islessused.Apartfromthat,only14outofthe66studies(21%)explicitlyofferadefinition
ofwhattheyunderstandundertheconceptsapplied.
Figure9.Conceptterms.Ownelaboration.
3.2.4.Projects’LocationswithinCities
Ialsotaggedeachcasestudywithregardtotheircityspecificlocation.Almosthalf
ofallthelocationtagsbelongtothecategory“waterfront”(44%),whichindicatesthelarge
shareofmegaprojectsrelatedtoblueinfrastructures.About31%ofthetagsareinthe
category“brownfield”.Thisisquitesurprisingbecauseitprovestherelevanceofsuch
conversionprojectsfortheresearchinterestpresentedinthispaper,ontheonehand.Con
versely,Figure9andTable3clearlyshowhowthespecificterm“brownfield”onlyplays
aminorroleasakeywordorconcept.Thismeansthatthereisagapbetweentheactual
relevanceofconversionprojectsandthelabelingofsuchasbrownfieldsites.Apartfrom
that,therearealsoothersitesnamed,suchasneighborhoods(17%),anddevelopmentson
thegreenfield(7%).
Comparingthesefindingstotheliteraturerevealsthatotherscholarshaveobserved
asimilardevelopment.DiazOruetaandFainstein[6]evenspeakofanewgenerationof
megaprojectsandseeintheirlocationonwaterfrontsoroldmanufacturingareasthemain
elementsoftheirdefinition.Theyaddtothediscussionthatbuildingtheseprojectson
derelictlandincreasespublicacceptancebecause,apparently,nooneisdisplacedfrom
there[6].Hence,thiscanbeinterpretedasastrategypromotedbytheprojects’initiators
toavoidprotest[43].Italsogoesbacktotheongoingeconomictransitiontowardthepost
industrialcity,whichleavesmanyformerindustriallyusedplaceswithoutafunction[63].
3.3.TopicsandContents
Thissectiondigsdeeperintothecontentsdiscussedbythedocumentsincludedin
thisliteraturereview.Idosobypresentingthecodesystem,andthreeselectedtopics,
namelygentrification,tourism,andplanning.
Table5containsaselectionofcodes,whichhelpstogiveafirstoverviewofthemost
relevantandoverarchingtopicsdealtwith.Thetabledoesnotshowconceptrelatedcodes
suchasmethods,projects’descriptions,orobjectives,itratherfocusesoncontents.
Sustainability2021,13,1282716of23
Table5.Codesystemwithmostrelevanttopicrelatedcodesandreferences.Ownelaboration.
ProjectRelated
Information
0Motivations55Planning42
Description(contents) 143Revitalization/regeneration6Participation25
Numbers/statistics17Power3Transparency13
Scale41Economicreasons33Concepts9
Costs25Image/marketing48Public–privatepartnerships23
Discussionofresults98localreasons13Stakeholders53
Successfactors27Trickledown5Roleofthestate51
Positiveaspects29Accesstothespace8Problems8
Negativeaspects110 Financialmodel24

Justice40OtherTopics 0Reactions10
Socialissues7Tourism100Themedia11
Segregation4Localconditions56Protests39
Gentrification81Architecture41
Industrial
Gentrification
3Lessonslearnt
42
Greengentrification8Sustainability
25
Neoliberalism22
History18
SomeofthecodesIhadalreadypreparedbasedonpreviousknowledgeandwhat
wastobeexpectedbasedonotherliteratureandtheanalysisofkeywordsandabstracts
(projectrelateddata,planning,justice).Additionally,manysubcategorieswerebuilton
thematerial.Forexample,71%ofallthestudiesexplainthediversemotivationsforthe
megaprojectsdescribed.ThisisacategorythatIdidnotexpect.Nextto“planning”(80%)
and“justice”(79%),itisevenoneofthelargestcategories,atleastconsideringthenumber
ofdocumentswheretheyappear.
3.3.1.Gentrification
Largescaledevelopmentprojectscanproducegentrificationinmultipleways,and
thisalsoreflectstheliteratureanalyzed.Newbuildgentrificationisindeedoneofthe
mostcommonphenomena,whichoccursifprojectsaredevelopedonaformerlyunused
area[29].Apartfromthat,suchdevelopmentsobviouslyinfluenceadjacentneighbor
hoods.Thismightoccurbytheintentionoftheproject’sinitiators,suchasintheValencia
Plan[40].Itcanalsooccurunintended,iftherearestrongmarketforces,suchasa“self
financingimperative”[64]andno“carefulpublicinterference”againstgentrificationis
proposed[65].
Inanycase,projectsthatlackspatialandfunctionalintegrationwithinthedistrict
willprovokeastrongdisparityandhighpricedifferences[66].Moreover,newfacilities
suchas“shoppingmalls,parks,luxurioushotels,andconventioncentres”[1]arepartof
aprojecttoattractothersocialgroups,suchastourists.Thisisalsoobservedingreen
gentrificationprocesses[67],whichterritorialize“thosespacesasinvitingtocapital,elites,
andtourists”[68].WithexamplessuchastheAnacostiaRiverinWashingtonD.C.[34]or
Medellín’sGreenbelt[68],thediscussionongreengentrificationisquiteyounganddy
namic[69].Greengentrificationaccountsfor10%ofallthecodeswithinthegentrification
categoryandprovestobearelevantonebecauseitexemplifieshowenvironmentalup
gradingduetomegaprojectsdoesnotalwaysbenefitallneighbors.
Marcuse’sconceptofexclusionarydisplacementhasbeenappliedtothisdiscussion,
becausethenewhousingunitsbuiltinsuchmegaprojectsarerarelyaccessibletogroups
Sustainability2021,13,1282717of23
withlessincome[44].Megaprojectsalsoproduceafearofdisplacementduetotheex
pectedneighborhoodchanges[44].However,theexampleofRotterdam’sKopvanZuid
showshowgentrificationhasnotspread“farbeyonditsboundaries”[28];therefore,the
processisnotaselffulfillingprophecyperse.
Furthermore,thegroupofdisplacedpersonsismoreheterogeneousthanonewould
supposeatfirstglance.Itisnotonlyinhabitantsevictedfromtheirhouses,butalso“driv
ers,informalvenders,andoccupants”fromthepublicspaces[70].Insomecases,even
industriesare(actively)evictedtoreplacethemwithserviceorientedfunctions.Thispar
allelismofdeindustrializationandupgradingisobservedinBerlin[71],wherethecity
centerisintendedtobeshiftedtotheeast.Similarprocessesoccurifmarketforcesdrive
industrialusesfromthewaterfront,suchasinHongKong[72]orinSeoul[73].
Apartfromthat,injusticeisnotonlyseenasaproductofdisplacement.InTurkish
cities,lowincomegroupsweredisplacedfromtheir(informal)settlementsbutwereof
ferednewapartmentswithinthemegaprojects,whichappearedtobeamovetointegrate
localinhabitants.However,theywerealsoincorporatedinto“agloballyarticulatedmort
gagemarketwhichmeansalongtermdispossessiontotheirlabor”[55].
Insummary,therelationshipbetweenmegaprojectsandgentrificationiscomplex.It
isworthnotingthattheliteratureincludedinthisreviewrathertakesananalyticalpoint
ofview,eitherdescribingorexploringtheseprocesses,ratherthanproposingsolutionsto
theproblem.Gentrificationisnotonlytoberegardedasathreattoaneighborhood’ssus
tainability,butevenendangerstheactualgoaloftheprojects:Itmightphysicallyregen
erateadistrictbutdoesnotultimatelycontributetothelocalpeople’swellbeing[74].If
so,gentrificationcanbecomeatinderboxevenforprojects’developers,becauseitfuels
protestagainsttheplans[1].
3.3.2.Tourism
Tourismisstudiedfromvariouspointsofviewintheliterature.Whilemoststudies
confirmtourismasonekeydriverformegaprojects,onlysomeexploretheconflictsthat
thegrowingtourismbringsabout[75].
Thischangeswithregardtotheinitiators’pointofviewabouttheirmegaprojects.In
mostcases,thepredominantnarrativeistoattractmoretouristsorevenpositionthecity
onthetourists’consciousnessbymeansofmegaprojects.Inthisliteraturereview,thereis
oneexception:InthecaseoftheBarcelonamodel,megaprojectswerealsointendedto
diversifytheeconomytobelessreliantonmasstourism[3].
Theauthorsexplainthehighattractivenessoftouristfunctionswithitsprofitability.
Apartfromluxuryresidences,offices,andshoppingfacilities,tourism(e.g.,hotels)isone
ofthemostprofitableusesinmegaprojects[76],letalonetheadditionalbenefitsoftour
ists’spendinginthecity.Thequestionisalso,whatroletourismplayshistoricallyinthe
region’sorcountry’seconomy.Insomecases,“statesusetourismtodefinenationaliden
titythroughsymbols,attributes,andplaces,anddevelopanimportanturbaninfrastruc
turetoassertglobalrecognition”[77].Usingtheglobalvisibilityoflargescaleurbande
velopmentprojectsisthusalogicalconsequence.
Toaddressthisvisibility,thereareatleasttwoformsinwhichtourismformsapart
ofmegaprojects.Firstly,therearethoseprojectswheretourismisoneelementamongoth
ersinamixeduseprogram.ThevarietyofexamplesreachesfromBilbao’sAbandoibarra
[64]toKingsWaterfrontinLiverpool[49]ortheBelgradeWaterfront[57].
Secondly,insomemegaprojects,tourismisthemainfunction.Again,therearedif
ferentformsofsuchprojects,forexample,theAmerica’sCupin2007inValencia,which
clearlyadvocateshighendtourism[56].Verypopularexamplesarethespectacularmu
seums(Guggenheim,Bilbao)[37]ortheoperahousesinOslo[35]andSantaCruzdeTen
erife[78].Such“spectacular”buildings“tendtoconfirmonecity’scosmopolitanorienta
tionoratleasttourismfriendlyidentity[58]andrevealtheconnectionbetweenglobal
imageandtourism.
Sustainability2021,13,1282718of23
Apartfromculturalflagshipprojects,tourismcanbepromotedinmanyotherways,
allofthemconcentratedintheexampleofCostadelSol,Málaga[75].Inthiscase,acom
binationofdirectlargescaleinvestmentintoaccommodation,theregenerationofthehis
toriccenter,andawaterfrontregenerationwasproposed.
Itisparticularlythelatterexample,namely,waterfrontprojects,wheretourismfunc
tionsarepromising,asproveninMelbourne:“thekeytoitssuccesswasthatthedevelop
mentprovidedanorthfacing,sunnyexposureonthewaterfront,withabrandnewpan
oramaofthecityskyline”[33].
Withregardtotheimpactoftourismontheconceptofmegaprojectsandlateron
urbandevelopmentingeneral,theliteratureincludedinthisreviewassumesarathercrit
icalposition.Thisisbasicallybecauseofthe“competingdemandbetweenaplacefortour
ismandaplaceforlocalpeople”[72].Inmanycases,theneedsofthelocalpeopleare
neglectedcompletely.Thisisdiscussedbytheconceptof“containertourism”,whichre
ferstospectaculararchitecturethatisemptyofcontents[51].Inmoreintegrativecases,
thereisatleastsomeheritageconservation,whichhasbothavalueforthelocalidentity
andisalsoattractivefortourists[69].Preservinglocalpeculiaritiesisaneffectivestrategy,
giventhefactthatfromthetourists’perspective,itcanbedisappointingtofindjustan
otherglobalizedurbanformintheirtraveldestination[69].
Overall,theliteraturecitedinthisreviewdocumentsthestrongbeliefthatgovern
anceandplanningbasedonlargescaleinfrastructureswouldfosterbothtourismandthe
imageofthecityitself[40]—akeyassumptionundertheentrepreneurialturn.
3.3.3.Planning
AthirdtopicthatIwilldiscussisplanning,asithasobviouspracticalrelevance.In
general,Iobserveacriticalperspectiveinthesedocuments.Thisisbecauseplanninglarge
scaleurbandevelopmentprojectsposessevereproblemstotheexistingplanningframe
work[24].Apartfromthat,mostoftheobservedplanningprocessesareseenas“darkand
secret”[1],where“speed”and“urgency”[79]reign,althoughthesearenotgoodplanning
principles.
Whenanalyzingplanningprocessesinmegaprojects,thestudiesincludedplacea
strongemphasisonstakeholders.Thissubcategoryaloneaccountsfor45%ofallthe
codesincludedinthecategory“planning”.Therefore,Iwilldescribesomegeneralaspects
andlaterfocusonpublic–privatepartnershipsandtheroleofthestate,whichareboth
highlydiscussedissues.
Animportantstepthatmanystudiesproposeistodisentanglethenetworkofstake
holdersinamegaproject,as“acomplexsetofpowerrelations”[69].Thereisaneedtodo
sobecausetheserelationsareregardedascomplexduetothenontransparentinterna
tionallinksofcapitalandpower[57].Forexample,personalrelationsandnepotismare
describedascommonproblems[23].Morethanhalfofthestudiesalsorefertothe“elite”
asafuzzyandpartiallyhiddengroupthattriestoreachitsinterestsbymeansofamega
project[34,70].Itisparticularlythiselitethathasbeeninfluencedbyveryvisibleandap
parentlysuccessfultransformationsduetomegaprojects[1].Contrarily,thestudiesdonot
somuchfocusoncivicgroups,neighborhoodrepresentatives,orotherassociations.This
isprobablybecausethesegroupsareneitherinchargenordotheycontributetotheun
democraticcharacterofprojects.
Instead,theoutstandingfocusisplacedonpublic–privatepartnershipsasthepre
vailingmodelbehindmegaprojects[6].Somestudiesexplainthemotivationsforthis
model,whichservestomobilizeactorsapartfromgovernmentalentitiesbyentrepreneur
ialstrategies[27].Othersfocusontheimplicationsofpublic–privatepartnerships,suchas
DiazOruetaandFainstein[6].Theycriticizethattheproducedspacesoftenputprofits
firstandurbanitysecond.Moreover,planningrulesaremodifiedtomakethemfitwith
logicfromtheprivatesector[57].Thishasledto“decentralizedformsofgovernance[…]
whilerelyingonstateissuedexceptionalrules”[54].Insomecases,megaprojectsareeven
Sustainability2021,13,1282719of23
usedtointroducepublic–privatepartnershipstothecityonalargescaleasthenewform
ofgovernance[66].
Apartfromthat,theauthorsalsocriticallyinvestigatetheroleofthestate.About49%
ofallthecodesdealingwithstakeholdersconcentrateonpublicdecisionmakers.Thestate
isseenas“akeyarticulatorinspeculativecitydevelopmentschemes”[53].Despitethe
popularityofpublic–privatepartnerships,manyofthemegaprojectsarestateled.Thisis
notonlythecaseinautocraticsystems[57]butalsoinmoredemocraticenvironments[28].
However,itwouldbewrongtoassumethatthereisjustasingularstakeholderbehind
theterm“state”.Itrathermustbedifferentiatedbetweennational,regional,andlocalen
tities[57],orevenotherpublicbodiessuchasthearmy,portauthorities,etc.[69].This
turnsthestateintoahighlyrelevantbutcomplexaspecttostudy,asthepublicstakehold
ersoftenpursuecontradictinggoals[80].
4.Conclusions
Thisliteraturereviewsoughttosystemizetheexistingknowledgeabouttheinter
twiningfieldsofurbanmegaprojects,gentrification,andtourism.Despitethelimitsofthe
chosenprocedure(e.g.,limitedrangeofkeywords,focusonEnglishspeakingdiscourse),
Iwanttohighlightthefollowingthreeaspectsthatthisreviewhasshown:
Researchinterest:Theareastudiedisanemergingfieldwithanumberofcontribu
tionsthatgrowsteadily.TheglobalnorthandcountriessuchasSpain,theUK,and
theU.S.dominatethediscussion.Journalsarethetypeofpublicationwheremost
discussionstakeplace.Studiesstronglyrelyonqualitativeapproachesormixed
methods
Format:Casestudiescontributesignificantlytothediscussion,whichemphasizesthe
existingknowledgeabouthowtoapproachmegaprojects,whichmethodstoapply
andhowtointerpretthem.
Contents:Withregardtocontents,topicssuchasplanning,motivationsbehindpro
jects,(social)justice,theimpactsonthecity,andreactionsinsocietyprevail.Halfof
thetextsrefertoauthorsrepresentingconceptsonneoliberalism,andaboutone
quarterdrawsontheoriesaboutcultureandimage.Contributionsfrompracticalper
spectivesrepresentaminority.
However,Iidentifythefollowingthreegapsintheliteraturethatfutureresearch
shouldtrytofill:
Methodologicalgap:Morethanonequarterofallthestudiesdidnotclearlyexplain
theirmethods.Thisisproblematicforthefollowingtworeasons:(1)Itreducesthe
qualityoftheresultsbecausethereadercannotunderstandhowthefindingswere
produced.(2)Italsomakesitimpossibletoreplicateresearchdesignsandthusvio
latestheprinciplesofgoodscientificpractice[81].
Transfergap:Fromamorepracticalperspective,itisnotclearatallhowtobring
existingknowledgeabouttherelationshipbetweenmegaprojects,gentrification,and
tourismtopolicymakersandstakeholdersinthecities.Thisisprovenbythegrowing
numberofcasestudies,showingthatnolearningprocessesaretakingplacebetween
theprojects.
Spatialgap:Fromaconceptualperspective,thereisaspatialgapwiththeglobal
northdominatingthediscussion.Hence,anunreflectedtransferofconceptsfromthe
globalnorthtothesouthmustbeavoided.Thelargenumberofstudiesthattake
placeinthenorthdealingwithhighlyvisiblemegaprojectseasilyoutweighsexam
plesfromthesouth.Ofcourse,newandemergingstudieswilltaketheexistingcon
ceptsintoconsideration,butnotreflectingonthelocalpeculiaritiesofeachphenom
enonwouldbeamistake(seeforexampleLópezMorales[82]foracriticaldiscussion
ofnorth–southtrajectoriesingentrificationresearch).
Onthatbasis,Idrawseveralconclusionsthatserveasguidanceforfurtherresearch.
Sustainability2021,13,1282720of23
Firstly,toadvancethediscussion,Iproposeaconceptualsharpening.Thisrefers,for
example,totheclearuseofkeywordssuchasmegaprojectsorgentrification,andalso
includestheirtransparentdefinitions.Thisisnecessarytoavoidsofteningtheexisting
concepts.Italsocontributestoaclearunderstandingoftheseterms,asitisclaimedinthe
neighboringdiscussionbetweengentrificationandtouristification[83].Regardingthe
highshareofcasestudieswithinthisdiscussion,moretheoreticalandconceptualcontri
butionsshouldcomplementthefield.Apartfromthat,byconceptualsharpening,Ialso
refertoprovidingacomprehensibledescriptionanddiscussionofthemethodsapplied.
Secondly,someoftheflagshipprojectshavesignificantlyhighvisibility,notonlyin
thescientificdiscoursebutalsoinpracticeandplanning.Citiesaroundtheglobecopy
BarcelonaorBilbaoandhopetobenefitfromasimilar“successful”development.Acriti
calreflectionoftheseurbandevelopmentmodelstakesplaceinacademiabutfailstofind
itswaytothestakeholdersinplanningandpolicy.Howcanthistransferofknowledge
takeplace?Theaimhereisnottoavoidfurthermegaprojects,butratherenablelearning
processesbetweenthem—anareathathasnotattractedenoughinterestthusfar[84].
Hence,moreresearchmustbeconductedonhowtocopewiththesephenomena.Weal
readyknowwhythenarrativesofsuccessfulmegaprojectsarelinkedtogentrificationand
tourismfromtheperspectiveofprojectinitiators.Wealsoknowwheretheseprocesses
takeplaceandhowtoframetheobservationswithinthecontextofneoliberalization,the
entrepreneurialturn,etc.However,thereisfarlessknowledgeofhowtomakeitbetter—
bybothcontributingtofindingacity’splaceintheglobalurbannetwork,butwithout
fosteringpolarization,segregation,andotherconflictsintheirurbanarenas.Themain
problemhereisthattheplanningofmegaprojectsissocomplexthataddingsocialsus
tainabilityasafurthercriterioneasilyoverloadstheprocess,althoughitshouldbethe
mainrationaleofplanninganyway.
Thirdly,akeyquestionishowCOVID19willaffecttherelationshipbetweenmega
projects,gentrification,andtourism.Iseeseveralpandemicinducedturningpoints,with
animpactoneachofthesephenomena.Duetothecurrenteconomicrecession[85],anum
berofprojectsunderconstructionmightfacefinancialdifficulties,whichendangerstheir
success.Paradoxically,itcanbeassumedthatmanycitieswillfeeltheneedtoboosttheir
economiesbymeansofmegaprojects,justasintheaftermathof2008seconomiccrisis[24]
ortheAsianfinancialcrisis[80].Ialsoexpecttourismtoplayafundamentalroleinthese
futureprojects,basedonthestrongturntowardtourismasagrowthstrategyincountries
suchasSpainafter2008.Withregardtogentrification,somescholarsexpectaneven
strongernewwaveoftheprocessintheaftermathofCOVID19.Thissocalled“disaster
gentrification”[86]willrolloverneighborhoodsthatareleftsociallyvulnerablenotonly
duetotheeconomiccrisis,butalsoduetorenewedausterityprograms.Thisproblemisa
futurelineofresearchwithimmediaterelevance.Wewillnotonlyneedtoinvestigate
howtoprovideappropriatepolicyinstrumentstocopewiththepossibleimpactsbutalso
howtomakelargescaleurbandevelopmentprojects(socially)moresustainableinthe
firstplace.
Funding:Thisresearchreceivednoexternalfunding.IacknowledgesupportfromLeipzigUniver
sityforOpenAccessPublishing.
InstitutionalReviewBoardStatement:Notapplicable.
InformedConsentStatement:Notapplicable.
ConflictsofInterest:Theauthordeclaresnoconflictofinterest.
Sustainability2021,13,1282721of23
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... It has been found that the social effects of tourism gentrification are related to the economic effects, such as increasing housing prices in the real estate market [16][17][18]. The economic effects of tourism gentrification contribute to urban revitalization in tourist cities [19,20]. However, they also cause housing affordability risks for the local communities. ...
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Before the Coronavirus Disease pandemic of 2019, many tourist cities suffered from over-tourism, and tourism gentrification seriously impacted the living environment for residents. This study aimed to clarify the statistical relationship between the increase in the number of accommodations―hotels and simple accommodations―and housing prices in Kyoto City, one of the world’s most famous tourist cities. As a key result, this study clarified that the price change in houses for sale was significantly related to the number of hotels in the historical center of Kyoto City. Specifically, it was found that the average price of houses for sale increased by JPY 2,013,957/USD 18,382 per hotel in a neighborhood district. In addition, the average price of houses for sale increased by JPY 6,412,102/USD 58,526 from 2015 to 2019. Compared to previous studies, in the historical center of Kyoto City, the novelty of our finding is that the cause for increasing housing prices was not simple accommodations but hotels, and the effect of housing prices was not on houses for rent but those for sale. These results are significant because they indicate that tourism gentrification causes housing affordability risk for the local communities, including young households.
... Spain is the country with the highest number of urban megaprojects debated, at least in the English-speaking discussion (Hübscher 2021). This comes as no surprise, considering projects such as Guggenheim (Bilbao) or Ciudad de las Artes y las Ciencias (Valencia, Fig. 12.2). ...
Chapter
Inner-city megaprojects have become a typical element in the neoliberal city and are associated with multiple conflicts such as undemocratic planning, cost explosions and (green) gentrification. This chapter analyzes two neighboring megaprojects (Cabo-Llanos Plan and Santa Cruz Verde 2030) in Santa Cruz de Tenerife (Spain) and explores if there are learning processes of primary and secondary stakeholders between the two projects. I conducted 18 qualitative interviews with the town hall, architects, neighborhood associations and real estate experts. The results indicate how each stakeholder group learned particularly in the area that affects them most, for example with regard to urbanism, housing, and public spaces. The project’s initiators show a clear learning process, as the new megaproject (Santa Cruz Verde 2030) takes up several deficits revealed by the former megaproject (Cabo-Llanos Plan). However, this chapter questions the motivation behind this learning, as the apparently sustainable mask of the project rather conceals the entrepreneurial logics. Hence, this study reveals the potential of integrating stakeholders into planning processes, but it also shows how spatial injustices are reproduced.KeywordsMegaprojectsPlanningLocal stakeholdersLearning processSanta Cruz de Tenerife
... Among the effects of tourism gentrification, many researchers have discussed the specific social effects of displacement [7]. The severe problem of tourism gentrification unexpectedly results in the displacement of socioeconomically vulnerable local communities [8]. ...
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In recent years, tourist cities worldwide have experienced rapid tourism gentrification, which was caused by the spread of P2P accommodation-matching digital platforms. The research problem is set as follows: whether tourism gentrification caused a population decline in the historical center area of tourist cities. Therefore, this study aims to clarify the causal statistical relationship between population decline and tourism gentrification, focusing on urban transformation by accommodation. As a case, this study analyzes Kyoto City, a world-class tourist city. In summary, we conclude that tourism gentrification caused population decline through displacement in the historical center of Kyoto City. On the other hand, it was found that population decline occurred from factors other than tourism gentrification in the outside area of Kyoto City. The academic contribution is to clarify the effect of population decline on the cause of urban transformation through time precedence with statistical correlation. For tourist cities where the population is declining, the distinction between cause and effect is critical for policymaking toward sustainable tourism where the population is declining. The practical implication is the need for urban planning against tourism gentrification toward sustainability tourism in the historical center of Kyoto City.
... Carefully crafted around the streamlined criteria of livability indexes and scripted around the all too familiar narratives of health, wellness and sustainability (Klingmann, 2022) to capture a maximum share of mobile wealth, megaprojects are marketed strategically to members of the transnational capitalist class. Hübscher (2021), in this regard, has demonstrated that green gentrification accounts for 10% of all gentrification categories, exemplifying how environmental upgrading in megaprojects and so-called "enhanced quality of life" may not necessarily benefit low-income communities, people of color and migrant communities, because of rising property values and displacing long term residents while building resilient properties for urban elites. Despite changing narratives, it can be argued, therefore, that the global economic positioning and marketing of Rescripting Riyadh megaprojects toward a globally mobile elite still prevail over the concern of local issues and an egalitarian construct of livability. ...
Article
Full-text available
Purpose This study aims to investigate whether the correlation between Saudi Arabia’s social and economic reforms, urban megaprojects and sustainable urbanism can lead to an increased quality of life (QoL) in the capital, create a comprehensive lifestyle setup for Riyadh’s residents while also aiming to attract foreign investment. Design/methodology/approach This research examines five government-sponsored mega-destinations and their master plans against the objectives of Saudi Arabia’s Vision 2030’s Quality of Life Program. Furthermore, the author analyzed to what extent the proposed projects fulfill global mandates of sustainable urban development and how they might help raise the QoL for Riyadh’s residents. The author’s methodology rests primarily on detailed policy evaluation proposed by Vision 2030, literature research and data collected from proposed urban development plans. In parallel, the author conducted informal conversations with people living in affected areas and architectural offices who are involved in the design of the five megaprojects. After collecting the data for each project, the author compared the QoL Program criteria to the data of the proposed megaprojects to examine to what extent the proposed designs implement the QoL criteria of Vision 2030. In the last step, the author evaluated whether and how the proposed plans adhere to globally established guidelines of sustainable urban revitalization by studying possible overlaps and contingencies on an urban level. Findings The analysis reveals that although each case study project targets one or more specific lifestyle domains, the projects combined fulfill all lifestyle categories specified in Saudi Arabia’s QoL program. In addition, each project contributes measures to improve livability in the categories of urban design and environment, infrastructure and transport, social engagement and safety while also providing a range of economic and educational opportunities for different demographics. In terms of sustainable development criteria, the analysis demonstrates that all case studies provide ample measures to enhance Riyadh’s mobility by providing greenways for pedestrians and cyclists, which connect to public transport. Furthermore, when strategically combined as a series of urban layers, the projects demonstrate potential to form urban synergies among different lifestyle domains that could positively affect existing and proposed neighborhoods, particularly when extended through an inclusive, participatory planning framework, which, in turn, could significantly raise the QoL for a broad socioeconomic demographic. Research limitations/implications This research reveals the complex role of megaprojects as change agents for socioeconomic reforms, as signifiers of livability and as planning frameworks to implement sustainable urbanism in Saudi Arabia’s capital, while also creating a lifestyle infrastructure for Riyadh’s residents. Practical implications With their sensitive approach to climate, ecologically driven landscape projects and regionalist architecture inspired by the traditional Arab city, these case study projects may serve as an example to other countries in hot arid zones on sustainably revitalizing their urban environments. Social implications This study demonstrates how social and economic reforms intertwine with sustainable urban planning and placemaking to create a comprehensive lifestyle setup for Riyadh’s residents that has not previously existed. On the planning side, this includes creating a massive public infrastructure that encourages walkability and residents’ active participation in recreational, cultural, entertainment and sports activities. However, as the analysis has also revealed, while offering a large number of public facilities, the projects do not embrace a mixed-income project model, which would allow low-income families to live within a market-rate environment. In addition, one of the projects entails the displacement of benefit low-income and migrant communities. Although the government has a separate program that specifically aims at providing affordable housing in other areas of the city, these model destinations primarily target luxury tourists and affluent Saudis, potentially cementing existing socio-spatial divides in the city. Consequently, the megaprojects demonstrate Saudi Arabia’s conflicted response to the logic of entrepreneurial neoliberalism: on the one side, progressive attempts to promote an egalitarian approach to urban livability; on the other, strategic efforts to use megaprojects as spectacular showcases in the global marketplace. Originality/value The correlation between Saudi Arabia’s socioeconomic reforms, megaprojects and sustainable urbanism in Riyadh has not been previously explored. Compared to Western countries’ cities, few attempts have been made to investigate the role of livability in the context of emerging countries’ fast-growing urban areas. This paper presents a considerable case study in Saudi Arabia that ties into a more extensive debate on cultural globalization where cities, particularly in the developing world, use megaprojects as change agents to reconstruct their urban territories according to standardized livability indices to elevate their image in the global marketplace.
... In Hubscher [11], a systematic review is shown that explores the interaction from a neoliberal context of current urbanism of how an increasing number of megaprojects in cities aim to transform vacant land, accompanied by gentrification and tourism. ...
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