Submitted by Marcio Emanuel Paixão Santos (marcio.santos@ucsal.br) on 2016-09-14T19:05:33Z No. of bitstreams: 1 DISSERTAÇÃO FINAL VALDEANE OLIVEIRA 2013.pdf: 21233158 bytes, checksum: ac222b85ca24b57e0601edfe6472123b (MD5) / Approved for entry into archive by Maria Emília Carvalho Ribeiro (maria.ribeiro@ucsal.br) on 2016-09-19T22:37:51Z (GMT) No. of bitstreams: 1 DISSERTAÇÃO FINAL VALDEANE OLIVEIRA 2013.pdf: 21233158 bytes, checksum: ac222b85ca24b57e0601edfe6472123b (MD5) / Made available in DSpace on 2016-09-19T22:37:51Z (GMT). No. of bitstreams: 1 DISSERTAÇÃO FINAL VALDEANE OLIVEIRA 2013.pdf: 21233158 bytes, checksum: ac222b85ca24b57e0601edfe6472123b (MD5) Previous issue date: 2013-01-31 / Conforme os artigos 182 e 183 da Constituição Federal Brasileira, os municípios devem executar suas funções sociais, levando em consideração que a cidade é um espaço para se viver bem e com qualidade, por se traduzir em um patrimônio, onde são construídas histórias, costumes e culturas sociais. Para que isso aconteça, devem apresentar uma gestão pública consistente, que atenda a essa função social, necessitando, para isso, de um planejamento eficaz. Compreende-se que o plano diretor se configura como uma lei que conduz o planejamento urbano, servindo de base para a gestão municipal. Contudo, grande parte das cidades brasileiras desconhece a importância do plano diretor como instrumento norteador para o ordenamento dos espaços dentro das cidades e suas funções sociais. Esta pesquisa tem como objetivo analisar as práticas do poder público e o plano diretor municipal no que concerne à questão ambiental no município de São Felipe no período compreendido entre 2001 a 2012. A ausência de uma gestão pública municipal eficaz no controle e cumprimento das Lei 12.651/2012 do Novo Código Florestal do Brasil e das diretrizes instituídas pelo PDDU – Plano Diretor Municipal de São Felipe,Lei nº 005/2007, vem gerando gradativamente práticas de agressão ao meio ambiente advindas da ausência de uma política ambiental e do controle da irregular ocupação humana em áreas que compõem mata ciliar. Tomaram-se como áreas de pesquisa a Barragem e a Serra da Copioba, ambas localizadas na zona rural de São Felipe – BA. A metodologia da pesquisa, de caráter quantitativo (levantamento de dados) e qualitativo (pesquisa de campo), consistiu no desenvolvimento do trabalho em quatro etapas: abordagem teórico-conceitual relacionada às prerrogativas legais e institucionais referente a preservação do meio ambiente; análise física do município de São Felipe; análise do relatório técnico do plano diretor de São Felipe/BA e por fim, as práticas da gestão pública e o plano diretor quanto à preservação da Barragem da Copioba e Serra da Copioba. Com a pesquisa, verificou-se uma desenfreada agressão ambiental às lagoas, mananciais, florestas e rios que compõem de mata ciliar presente na Barragem da Copioba e Serra da Copioba, associada às precárias condições de moradia em áreas ambientais e à ausência de compromisso da gestão pública municipal quanto ao cumprimento do plano diretor no município de São Felipe/BA. / According to articles 182 and 183 from Brazilian Federal Constitution, the municipalities must perform their social duties, taking in consideration that the city is a space to live well and with quality, by consisting into a patrimony, where stories, habits and social cultures are built. For that to happen, they must present a consistent public management that attends to such social duty, needing, for that, an effective planning. It is understood that the Comprehensive Plan is configured as a law that conducts urban planning, serving as a basis for municipal management. However, most Brazilian cities are unaware of the importance of Comprehensive Plan as a guiding instrument for the ordering of the spaces within cities and their social duties. This research aims to analyze the acts of the public authorities and the municipal Comprehensive Plan on what concerns the environmental issue on the municipality of São Felipe in the timeframe of 2001 to 2012. The absence of an efficient public management on the control and fulfillment of the Law 12.651/2012 of the New Brazilian Forest Code and the guidelines imposed by the PDDU – Plano Diretor Munipal de São Felipe (São Felipe Municipal Comprehensive Plan), Law 005/2007, has been gradually generating acts of aggressions to the environment coming from the absence of an environmental policy and control of irregular human occupation of areas covered by riparian forest. Were covered as research areas Barragem and Serra da Copioba, both located on the countryside of São Felipe – BA. The methodology of the research, a quantitative (survey data) and qualitative (field research), consisted of the development of work in four stages: theoretical and conceptual approach to the related legal and institutional prerogatives regarding the preservation of the environment; physical analysis of the municipality of São Felipe; analysis of the technical report of the Comprehensive Plan of São Felipe / BA and finally, the practices of public administration and Comprehensive Plan for the preservation of the Barragem da Copioba and Serra da Copioba. Through this research, it was verified a rampant environmental damage to lakes, springs, rivers and forests that make the riparian forest at Barragem da Copioba and Serra da Copioba, associated with poor living conditions in environmental areas and the lack of government commitment regarding compliance with the Comprehensive Plan in the municipality of São Felipe / BA.

Bringing nature back to cities to counteract the negative impacts of rapid urbanization has resulted in a series of greening terms coined by multidisciplinary scholars to emphasize the importance of natural areas and green environment in developing cities. Green infrastructure and nature-based solutions are popular scientific terms that are used to describe planning interventions for naturalization cities, but most of their studies still focus on academic literature, lacking attention to municipal plans. This study aims to identify terms related to green infrastructure and nature-based solutions in planning, analyze how these terms are used and varied in the municipal comprehensive plans in Stockholm County, and explore if the socioeconomic factors and context of these municipalities correlate to any variation. The study used systematic mapping literature and personal communication with planners to identify the relevant terms of green infrastructure and nature-based solutions, in order to carry out quantitative and qualitative analyses of the identified terms in the comprehensive plans of the municipalities in the county using NVivo and SPSS. The quantification analyses show that the integration of these terms varies significantly among municipalities even though the number of terms grows over time; however, this variation does not follow or correlate to any socioeconomic factors that characterize the municipalities. There are also differences between municipal plans in terms of definitions, functions, and other categories of content about the use of the terms. Regional plans are found to impact narrowing these differences significantly. Thus, regional authorities are suggested to publish the core principles on these terms to ensure the consistency of understanding among municipalities. Furthermore, a diagram of these terms showing how they are currently related to each other in most of the plans is concluded as a basis for future cross-municipal and intra-regional conversations. Future studies are recommended to focus on green infrastructure and nature-based solutions in detailed plans and green plans for implementation and a deeper understanding and to have more interviews with the planners for supporting planning practices of green infrastructure and nature-based solutions in cities.

No description available.

Master of Regional and Community Planning / Department of Landscape Architecture and Regional & Community Planning / Huston Gibson / As a legislative technique, the application of initiative or referendum is considered unconventional, yet frequently utilized to address local conservation issues throughout most of the United States. The subject of its appropriateness continues to remain under debate, especially in the field of planning. This longitudinal study employs a descriptive trend analysis on conservation measures conducted by local governments between 1996 and 2012, in order to identify any changes or consistencies in application. Subsequently, personal interviews were conducted with experienced local government officials to facilitate an understanding of current perceptions, specific experiences, and the outcomes relationship to comprehensive and capital improvement plans. Some key findings from this study include numerous relationships between ballot box conservation and election cycles, and a misperception by local governments of the passage capabilities of ballot box conservation. The inferences from this study will aid local governments and planners to consider or reconsider their stance on the use of ballot box conservation. Additionally, if local communities and governments do choose to practice or continue to practice the use of ballot box conservation, this study’s key findings will assist them in making their measures more successful.

Submitted by Alane dos Santos Viana (alane.viana@ucsal.br) on 2016-09-22T17:50:33Z No. of bitstreams: 1 fim dissertação.pdf: 4770248 bytes, checksum: 8876313e2153a21d856f0404223c9b6a (MD5) / Approved for entry into archive by Maria Emília Carvalho Ribeiro (maria.ribeiro@ucsal.br) on 2016-09-22T22:10:34Z (GMT) No. of bitstreams: 1 fim dissertação.pdf: 4770248 bytes, checksum: 8876313e2153a21d856f0404223c9b6a (MD5) / Made available in DSpace on 2016-09-22T22:10:34Z (GMT). No. of bitstreams: 1 fim dissertação.pdf: 4770248 bytes, checksum: 8876313e2153a21d856f0404223c9b6a (MD5) Previous issue date: 2016-01-28 / O plano diretor constitui a principal lei urbanística de grande parte dos municípios brasileiros. No ano 2001, com a regulamentação do capítulo da Constituição Federal que trata da política urbana, por meio da lei conhecida como Estatuto da Cidade, a elaboração do plano diretor se tornou obrigatória, dentre outros critérios, para os municípios com mais de 20.000 habitantes, sendo considerado por muitos autores um marco para o planejamento urbano brasileiro.Entretanto tal política tem sido alvo de inúmeras críticas devido a sua natureza urbanizadora, distinta da realidade da maioria dos pequenos municípios do país. Em cumprimento à obrigatoriedade legal de elaboração do plano diretor, o município de Amélia Rodrigues aprovou,em 2006, o seu Plano Diretor de Desenvolvimento Municipal – PDDM, que se tornou a primeira lei urbanística do município e que deveria ser utilizada para combater os problemas urbanos e orientar a administração pública no planejamento de seu território.No entanto, mesmo tendo se passado quase uma década da aprovação do PDDM, os problemas urbanos relacionados à gestão democrática da cidade, ao uso e à ocupação do solo, à expansão urbana, a irregularidades fundiárias, dentre outros, continuam a afligir o município, visto que o Plano Diretor de 2006 não tem se mostrado capaz de confrontar os interesses das elites econômicas locais, especialmente dos usineiros e fazendeiros da cana-de-açúcar. Tampouco tem conseguido superar os vícios patrimoniais e burocráticos presentes na administração pública, o que tem ameaçado assentamentos tradicionais, sendo o distrito de Mata da Aliança e as povoações rurais em terras dos usineiros e fornecedores de cana-de-açúcar as localidades que mais têm sofrido pelo fato de o PDDM de Amélia Rodrigues não assegurar instrumentos que permitam o cumprimento da função social da propriedade, o que tem ameaçado também um importante patrimônio cultural, histórico, artístico, paisagístico e arqueológico. / The Comprehensive Plan (henceforth CP) is the main urban law of most of Brazilian towns and in 2001 it became an obligatory law by means of another law known as The City Statute, it is a regulation of a chapter of the Federal Constitution. This law makes mandatory the CP, among other criteria for cities with more than 20,000 inhabitants, and is considered by many authors a milestone for Brazilian urban planning, however this policy has been the subject of many criticisms due to their urbanizing nature, different from the reality of most small municipalities in the country . In compliance with the legal obligation to prepare the CP the city of Amélia Rodrigues approved in 2006 its CP, called PDDM – Plano Diretor de Desenvolvimento Municipal, which became the first urban law of the city and should be used to combat urban problems and guide the government in planning its territory, however even going nearly a decade of the approval of the PDDM, urban problems related to democratic city management, land use, urban expansion, land irregularities, among others continue to plague the city. The PDDM from 2006 has been shown unable to confront the interests of local economic elites, especially the mill owners and farmers of sugarcane, so it has little helped to overcoming the property and bureaucratic vices present in public administration, which has threatened traditional settlements. The district of Mata da Aliança and rural settlements settled on the lands of sugarcane farms owners are the localities that have most suffered because of ineffectiveness of Amélia Rodrigues PDDM, what allows the non fulfillment of the social function of land property, which has also threatened an important cultural, historic, artistic, landscaping and archeological heritage.

Recently, there is an increasing interest and awareness on sustainability and sustainable development. Sustainability is comprised of the three E’s: environment, economy and equity. Of these three, the equity or the social sustainability component is often overlooked. As cities become more global and demographically diverse due to immigration, diversity’s impact to the city should be addressed through policies and plans. The content analysis and evaluation of city plans, policies and urban design examines their response to accommodating and including inter-cultural diversity using identified indicators of social sustainability and equity. This study finds that the length of time a city has been a foreign-born population hub does not statistically impact its integration of social sustainability measures in its comprehensive and sustainability plans. It concludes with best practices of sample cities and discussion on how city and other jurisdictions’ plans can incorporate, address and measure immigrant and inter-cultural responsiveness through social sustainability and equity concerns.

The European Water Framework Directive (WFD; 2000/60/EC) was incorporated into the Swedish legislation in 2004 through the ordinance Förordningen om förvaltningenav kvaliteten på vattenmiljön (SFS 2004:660). The objective is that all water bodies shall reach a good status by the year 2015. In Sweden the comprehensive plans of the municipalities can play a large role in reaching these goals. A comprehensive plan deals with the long term water and land use of the municipality, which can facilitate an early consideration of water management in the planning process of the municipality. In Sweden five river basin districts have been established in accordance with the Water Framework Directive. The focus of this study is on the Northern Baltic Sea river basin district. Action strategies have been created for each river basin district, dictating what measures the authorities, among them the municipalities, need to take. The purpose with this study is to find out to what extent the municipalities have taken the action strategies regarding the Northern Baltic Sea river basin and the water quality standards set in Förordningen om förvaltningen av kvaliteten på vattenmiljön (SFS 2004:660) into account when working with their comprehensive plans. The study also sheds light on the municipalities’ view on the demands made on them and what actions can facilitate the working process. The study was made in three parts; a survey, literature studies and interviews. An overall study of all the municipalities in the county of Stockholm was made and three were selected for an in-depth study. The results of the study show that the demands on the municipalities have not been met due to lack of knowledge. The municipalities are aware of the existence of the Water Framework Directive but find it hard to interpret the environmental quality standards and the action strategies. The municipalities wish for a clearer legal definition of the environmental quality standards and a better definition of how the implementation of the action strategies can be made. The municipalities are asking for a clarification of the demands they can make on other organizations and of the demands made on them by the county boards and the River Basin District Authorities.

The overall purpose with this report is to examine what role the municipal comprehensive plan has in the planning process today and how it influences future detailed development plans. The main question that this report tries to answer is: Does the municipal comprehensive plan give the guidance it is meant to according to the Swedish planning and building act? The municipal comprehensive plan is mandatory in that it must be established by all munici-palities and cover the entire municipality’s surface. The plan should state basic directions for land use and settlement development and give guidance for subsequent plans and decisions. For smaller areas, a more detailed comprehensive plan can be established. The municipal comprehensive plan, and the more detailed comprehensive plan, is not binding. In order to investigate the influence the municipal comprehensive plan is supposed to have according to the Swedish plan- and building law, a study has been conducted of the detailed development plans in Stockholm County, that became legally binding in the year of 2012, to investigate what the municipal comprehensive plan said about each detailed development plan. The conclusion of the conducted study is that in most cases the municipal comprehensive plan had been of guidance for the detailed development plans and in only four of the studied cases was the purpose of the detailed development plan conflicting with the municipal comprehen-sive plan. / Det övergripande syftet med den här rapporten är att undersöka vilken roll översiktsplanen har i planprocessen idag och hur den därigenom påverkar detaljplaneläggningen och att försöka besvara frågeställningen: Ger översiktsplanen idag den vägledning för kommande detaljplane-läggning som är tanken enligt PBL? Översiktsplanen är obligatorisk och ska upprättas av varje kommun och omfatta hela kommu-nens yta (3 kap. 1 § PBL). Planen ska ange grunddragen för markanvändning och bebyggelse utveckling samt ge vägledning för efterföljande planer och beslut (3 kap. 2 och 5 §§ PBL). För mindre områden kan en mer detaljerad översiktsplan upprättas, denna kallas vanligtvis för fördjupad översiktsplan (3 kap. 23 § PBL). Översiktsplanen är inte bindande (3 kap. 3 § PBL). För att tydligöra rollen som översiktsplanen, enligt PBL, är avsedd att ha idag för detaljplane-läggningen har en litteraturstudie av nuvarande lagstiftning, propositioner till nuvarande och tidigare lagstiftning samt artiklar och rapporter som handlar om översiktsplanens roll. Även aktuella förslag till ändringar av lagstiftningen presenteras. För att empiriskt undersöka vilken betydelse översiktsplanen har idag för den efterföljande detaljplaneläggningen studeras planbeskrivningar till lagakraftvunna detaljplaner i Stock-holms län år 2012 för att undersöka vad översiktsplanen, enligt planbeskrivningen för respek-tive detaljplan, sade om det aktuella området. Sammanfattningsvis kan sägas att översiktsplanen faktiskt är vägledande då kommunerna i sin detaljplaneläggning i de allra flesta fall följer översiktsplanens anvisningar, trots att de inte har någon laglig skyldighet att göra så.

Klimatförändringarnas påverkan på stadsmiljöer blir alltmer påtagligt med ökande frekvenser av extrema väderfenomen, vilket kräver resilienta städer med förmågan att anpassas till framtida störningar. Urbaniseringen förtätar städerna och leder till mer hårdgjord mark och minskad vegetation som kan resultera i fenomenet urbana värmeöar. Fenomenet koncentrerar och förlänger värmen i städer, vilket hotarmänniskors hälsa, särskilt under extrema värmeböljor. Värmeöar är väldokumenterade globalt men är en förbisedd fråga i Sverige. Examensarbetets syfte var därför att öka förståelsen kring värmeöar för svenska kommuner och myndigheter med exempel från städerna Gävle, Sundsvall och Uppsala. Målen var att föreslå resilienta planeringsåtgärder som både kan förbättra det pågående arbetet mot värmeöar samt nya inslag från internationell forskning.Studiens metoder var litteraturstudie, dokumentstudie av översiktsplaner (ÖP) samtintervjuer. En spatial multikriterieanalys (MKA) användes för att skapa farokartor av var värmeöar kan uppstå. Kriterier valdes genom litteratur, viktades med analytisk hierarkiprocess samt genomgick en känslighetsanalys. Farokartorna valideradessedan med Myndigheten för samhällsskydd och beredskaps (MSB) värmekartering. Resultaten visade att värmeöar behandlades på en övergripande nivå i ÖP. Varierade kunskaper om fenomenet framkom av respondenter från både kommuner och myndigheter. Flera utmaningar, möjligheter och planeringsåtgärder identifierades iarbetet mot värmeöar. Resiliens framhölls som ett nyckelkoncept i stadsplaneringen för att beakta olika klimatrisker där värmeöar är ett exempel. Litteraturstudien gav förslag på resilienta planeringsåtgärder i arbetet mot värmeöar som kan användas i svensk stadsplanering, vilka sedan sammanställdes. För att skapa resilienta städer krävs både reduceringsåtgärder (minska den byggda miljöns påverkan på stadsvärme)samt hanteringsåtgärder (förebyggande arbeten för att minska människors värmeexponering).  Farokartorna visade att värmeöar framför allt kan uppstå i bostads-, handels- och industriområden. MKA som metod för kartläggning av värmeöar överensstämdedelvis med marktemperaturer från MSB:s värmekartering. Slutsatsen av studien var att värmeöar behöver uppmärksammas mer i den svenska stadsplaneringen. Utmaningarna inkluderade att inkorporera värmefrågor i befintlig bebyggelse, medan möjligheterna fanns i fler planeringsunderlag och detaljerade kartläggningar. Främjandet av resiliens, särskilt genom reducerings- och hanteringsåtgärder,behöver utvecklas i Sverige för att stärka planeringsarbetet mot värmeöar i både nutida och framtida stadsplanering. / The impact of climate change on urban environments is becoming increasinglyapparent with higher frequencies of extreme weather phenomena, which requires resilient cities with the ability to adapt to future disturbances. Urbanization densifies cities and leads to more hard surfaces and reduced vegetation which can result in urban heat islands (UHI). This phenomenon concentrates and prolongs heat in citieswhich threatens human health, especially during extreme heat waves. UHI are well documented globally but are an overlooked issue in Sweden.  The aim of the study was therefore to increase the understanding of UHI for Swedish municipalities and authorities with examples from the cities of Gävle, Sundsvall and Uppsala. The goals were to propose resilient planning measures that can both improve the ongoing work against UHI as well as new elements from international research. The study's methods were a literature study, a document study of comprehensive plans (översiktsplan) and interviews. A spatial multicriteriaanalysis (MCA) was used to create hazard maps of where UHI can occur. Criteria were selected through literature, weighted using analytic hierarchy process and underwent a sensitivity analysis. The hazard maps were validated with the Swedish Civil Contingencies Agency’s (MSB) heat mapping. The results showed that UHI were treated at an overall level in comprehensiveplans. Varied knowledge about the phenomenon emerged from respondents from both municipalities and authorities. Several challenges, opportunities and planning measures were identified in the work against UHI. Resilience was highlighted as a key concept in urban planning to consider various climate risks where UHI are an example. The literature study provided suggestions for resilient planning measures in the work against UHI that can be used in Swedish urban planning, which were then compiled. To create resilient cities, both reduction measures (reducing the built environment's impact on urban heat) and management measures (preventive work to reduce people's heat exposure) are required.  The hazard maps showed that UHI mainly occur in residential, commercial and industrial areas. MCA as a method for UHI mapping partially matches ground temperatures from MSB's heat mapping. The conclusion of the study was that UHIneed more attention in Swedish urban planning. Challenges included incorporating heating issues into existing buildings, while the opportunities were in more planning documents and detailed mapping. The promotion of resilience, especially through reduction and management measures, needs to be developed in Sweden to strengthen the planning against UHI in both present-day and future urban planning.

Le champ de l’aménagement urbain structure fortement la vie politique locale de la capitale du Texas. Les acteurs s’affrontent autour des enjeux d’aménagement, allant du simple cas de zonage à l’élaboration complexe du plan d’urbanisme. La crispation des relations actorielles dans ce domaine s’effectue sur fond de croissance démographique et économique rapide qui aiguise les enjeux d’aménagement. Alors que l’attractivité d’Austin est érigée en modèle exemplaire du succès de la théorie de la classe créative, l’objectif de ce travail est de révéler le rôle des différents types de modèle dans la structuration et l’évolution de la culture des acteurs de l’aménagement austinite. La première partie précise les objets de recherche et développe une méthodologie adaptée. L’étude de la culture de l’aménagement urbain s’appuie sur les analyses des professionnels de l’urbanisme et les travaux d’analyse comparative des cultures de l’urbanisme en les adaptant à un champ actoriel ouvert à tous les acteurs impliqués, porteurs d’une stratégie spatiale. Les différents types de modèles actifs dans la vaste communauté discursive et comparative de l’urbanisme à l’échelle mondiale sont définis avant d’être envisagés à la lumière des policy mobility studies.La deuxième partie retrace l’histoire de l’urbanisation d’Austin au miroir des modèles théoriques utilisés pour en étudier le développement, tout en pointant les modèles urbanistiques dominants à chaque époque. La construction des modèles contemporains est analysée dans leur relation dialectique avec le cas d’Austin afin de souligner les mécanismes de la modélisation scientifique et l’influence réciproque entre ces modèles théoriques et les acteurs de l’aménagement urbain.La troisième partie analyse le système actoriel de l’aménagement d’Austin, sa gouvernance et la conception de l’urbanisme des divers groupes d’acteurs impliqués. Elle montre qu’au-delà des communautés épistémiques, de véritables communautés culturelles se forment autour d’objectifs politiques afin de surmonter les enjeux contemporains.La dernière partie approfondit l’analyse des jeux d’acteurs et des modèles urbanistiques dominants à travers l’outil de planification. Elle souligne les mécanismes de l’évolution culturelle dans le champ de l’aménagement et révèle les stratégies des acteurs pour promouvoir de nouveaux modèles urbanistiques.La profondeur des fractures révélées au sein du champ actoriel explique les difficultés à faire évoluer le système aménagiste qui reste crispé et litigieux. Le développement d’une culture commune de l’aménagement permettrait de retisser progressivement un lien de confiance et remplacer la défiance qui bloque pour le moment les processus d’adaptation aux nouvelles réalités urbaines d’une grande ville en émergence. / The urban planning field strongly structures the Texas capital’s local political life. The actors confront each others on planning issues, ranging from the simple zoning case to the more complex elaboration of a comprehensive plan. The tense relationships between the actors in this domain are taking place against a backdrop of rapid demographic and economic growth, which sharpens urban development issues. While Austin's attractiveness is set as an exemplary model of the success of creative class theory, the goal of this work is to reveal the role of the various types of models in the structuring and evolution of Austin’s planning culture.The first section specifies the research objects and develops an appropriate methodology. The study of the urban planning culture is based on the analysis of urban planning professionals and on the comparative analysis of urban planning cultures, adapting them to a larger variety of actors to take into account all the people involved through a spatial strategy. The different types of active models in the global discursive and comparative urban planning community are first defined, then considered in the light of the policy mobility studies.The second section traces the history of Austin's urbanization through the lens of the theoretical models used to study its development, while pointing out the prevailing urban models at each period. The construction of contemporary models is analyzed through their dialectical relationship with the case of Austin in order to emphasize the mechanisms of scientific modeling and the reciprocal influence between these theoretical models and the urban planning actors.The third section analyzes Austin’s planning system, its governance and the conception of the urban planning held by the various groups of actors involved. It shows that beyond epistemic communities, real cultural communities are formed around policies imagined to overcome contemporary planning issues.The last section deepens the analysis of the actors’ interplay and of preveiling urban models thanks to a planning tool: the comprehensive plan. It highlights the mechanisms of cultural evolution in the field of planning and reveals the actors’ strategies to promote new urban models.The depth of the fractures revealed within the planning field explains the difficulties for its system to evolve. Its processes therefore remain very tense and litigious. The development of a common culture of planning could gradually restore a bond of trust and replace the mistrust that, for the moment, stalls the process of adaptation to the new urban realities of an emerging big large city.