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Locais para disposição de resíduos sólidos, em sua solução tecnicamente mais adequada, os aterros sanitários, são equipamentos que desempenham funções urbanas, mas situam-se afastados das áreas urbanas. A expansão destas áreas urbanas acaba por alcança-los, a ela incorporando-os, o que ocorre quando estão no final de sua vida útil. O presente trabalho identifica como se desenvolve este processo de incorporação, realizando uma análise crítica das condições em que ocorre e da mudança de uso e ocupação do solo dos aterros como soluções propostas para a sua incorporação. / Areas for solid waste disposal, in the more appropriate technological solution, the sanitary landfills, are equipments that execute urban functions but are placed out of urban areas. The urban areas growth reach and enclose them, what happens when they are in the end of their life. This work identifies the incorporation process developing, making a critical analysis where it takes place and the land uses changes had made in sanitary landfills to become their incorporation to urban areas a suitable solution.

A ‘flexibilização do perímetro urbano’ é praticada nos municípios, por intermédio do poder público municipal, ao expandirem significativamente suas ‘zonas urbanas’ através de sucessivas ampliações do perímetro urbano. Essa prática, que está em conformidade com o conjunto da legislação vigente, ocorre segundo interesses políticos e econômicos, possivelmente sob demanda do mercado imobiliário e fundiário. O dimensionamento exagerado da zona urbana viabiliza a ocupação de áreas periféricas, distantes de áreas consolidadas, estimulando o processo de expansão urbana dispersa, cujos efeitos negativos repercutem sobre aspectos sociais, econômicos e ambientais dos municípios. A presente pesquisa desenvolve um estudo de caso em Lajeado / RS, no período entre 1984 e 2016, com o objetivo de investigar as ‘origens’ da flexibilização do perímetro urbano e, posteriormente, examinar suas ‘repercussões’ sobre a expansão urbana do município. O estudo das ‘origens’ investiga fatores associados à flexibilização do perímetro no município, considerando o papel da legislação e dos instrumentos de planejamento e analisando a evolução do crescimento urbano do município. O estudo das ‘repercussões’ investiga em que medida a flexibilização influenciou a expansão urbana de Lajeado, examinando de maneira associada, as ampliações ocorridas no perímetro urbano e a evolução da ‘mancha urbana’ (áreas construídas). A metodologia da pesquisa é estruturada por análises multi-temporais de indicadores demográficos, socioeconômicos e espaciais, implementadas com auxílio de técnicas e ferramentas SIG. A metodologia de análise da expansão urbana envolve procedimentos de classificação de imagens de sensoriamento remoto, utilizados na produção de mapas temáticos de cobertura do solo e de ‘áreas construídas’, posteriormente examinados através de métodos de análises ‘pós-classificação’ e ‘métricas da paisagem’. Os resultados obtidos para Lajeado permitiram demonstrar o rápido crescimento urbano do município no período analisado e, evidenciam que as ampliações do perímetro urbano tiveram influências significativas sobre o processo de expansão urbana, que se tornou mais intenso e apresentou características de dispersão espacial das ‘áreas construídas’. / The 'urban growth boundary flexibilization’ is practiced in the municipalities, by the means of the local public administration, to expand significantly its 'urban zone' through successive expansions of the urban growth boundary. This practice, which is in accordance with the existing legislation, occurs in according to political and economic interests, possibly under real estate and land market demands. The exaggerated urban zone sizing enables the occupation of peripheral areas, far from consolidated areas, stimulating the process of dispersed urban expansion, whose negative effects have an impact on social, economic and environmental aspects of the municipalities. This research develops a case study in Lajeado/RS, in the period between 1984 and 2016, with the objective of investigating the 'origins' of the urban growth boundary flexibilization and then, examine their 'repercussions' on the urban expansion. The study of 'origins' investigates factors associated with the boundary flexibilization in the municipality, considering the role of legislation and planning instruments, and analyzing the evolution of the urban growth. The study of ' repercussions ' investigates to what extent the flexibilization influenced the urban expansion of Lajeado, examining the enlargements that occurred in the urban zone, in association with the evolution of the ‘urban footprint’ (built-up areas). The research methodology is based on multi-temporal analysis of demographic, socioeconomic and spatial indicators, implemented with the support of GIS tools and techniques. The methodology of analysis of the urban expansion involves procedures of remote sensing image classification, used for production of thematic maps of land cover and built-up areas, that are afterward examined with methods of 'posclassification' and 'landscape metrics’ analysis. The results obtained for Lajeado allowed to demonstrate rapid urban growth of the municipality in the analysis period, and showed that the enlargement of the urban growth boundary had significant influences on the process of urban expansion, which became more intense and presented characteristics of spatial dispersion of the built-up areas.

A partir do estudo de caso da Irmandade de São José do Recife, esta dissertação tenta compreender como os oficiais mecânicos carpinteiros, pedreiros, marceneiros e tanoeiros estavam organizados profissionalmente e como esses trabalhadores eram valorados na vila do Recife, ao longo do século XVIII. Trata-se de um século muito importante para o Recife, pois é nessa centúria que ele vivencia uma intensa expansão urbana, e busca seu estabelecimento como vila, investindo, sobremaneira, em sua materialidade. Com o setor construtivo extremamente aquecido e o mercado de trabalho em ampliação, os oficiais mecânicos dos quatro ofícios anexos do Recife unem-se e fundam uma confraria religiosa sob o patrocínio de São José, em 1735. Assim, acreditamos ser esta confraria, a Irmandade de São José, um espaço privilegiado para melhor compreendermos como esses profissionais estavam organizados no Recife setecentista e o papel que tiveram nesse particular contexto. Trata-se de um estudo embasado na História Social, que teve como objetivo principal identificar possíveis mudanças na organização desses trabalhadores no decorrer do século XVIII, principalmente, a partir do governo pombalino, quando a capitania de Pernambuco recebe um novo incremento em sua economia. / Based on the case study of the Irmandade de São José (Brotherhood of Saint Joseph), in Recife, this dissertation aims to understand how the craftsmen carpenters, masons, joiners, and coopers were professionally organized, and how these workers were perceived in the town of Recife during the 18th century. This century is very significant to Recife, provided that at that time the city experiences a strong urban growth and pursues being established as a town, investing great efforts in material aspects. With an extremely heated construction industry and expanding labor market, the craftsmen from these four occupations attached to Recife joined and founded a religious confraternity under the patronage of Saint Joseph, in 1735. Then we believe that such confraternity, the Brotherhood of Saint Joseph, is a privileged spot to understand how these craftsmen were organized in the Recife of the eighteenth century, and the role they performed in this context. This study is grounded on Social History and mainly intends to identify likely changes in the organization of these workers over the 18th century, especially after the Pombal government, when the captaincy of Pernambuco received a further increase in its economy.

A partir do estudo de caso da Irmandade de São José do Recife, esta dissertação tenta compreender como os oficiais mecânicos carpinteiros, pedreiros, marceneiros e tanoeiros estavam organizados profissionalmente e como esses trabalhadores eram valorados na vila do Recife, ao longo do século XVIII. Trata-se de um século muito importante para o Recife, pois é nessa centúria que ele vivencia uma intensa expansão urbana, e busca seu estabelecimento como vila, investindo, sobremaneira, em sua materialidade. Com o setor construtivo extremamente aquecido e o mercado de trabalho em ampliação, os oficiais mecânicos dos quatro ofícios anexos do Recife unem-se e fundam uma confraria religiosa sob o patrocínio de São José, em 1735. Assim, acreditamos ser esta confraria, a Irmandade de São José, um espaço privilegiado para melhor compreendermos como esses profissionais estavam organizados no Recife setecentista e o papel que tiveram nesse particular contexto. Trata-se de um estudo embasado na História Social, que teve como objetivo principal identificar possíveis mudanças na organização desses trabalhadores no decorrer do século XVIII, principalmente, a partir do governo pombalino, quando a capitania de Pernambuco recebe um novo incremento em sua economia. / Based on the case study of the Irmandade de São José (Brotherhood of Saint Joseph), in Recife, this dissertation aims to understand how the craftsmen carpenters, masons, joiners, and coopers were professionally organized, and how these workers were perceived in the town of Recife during the 18th century. This century is very significant to Recife, provided that at that time the city experiences a strong urban growth and pursues being established as a town, investing great efforts in material aspects. With an extremely heated construction industry and expanding labor market, the craftsmen from these four occupations attached to Recife joined and founded a religious confraternity under the patronage of Saint Joseph, in 1735. Then we believe that such confraternity, the Brotherhood of Saint Joseph, is a privileged spot to understand how these craftsmen were organized in the Recife of the eighteenth century, and the role they performed in this context. This study is grounded on Social History and mainly intends to identify likely changes in the organization of these workers over the 18th century, especially after the Pombal government, when the captaincy of Pernambuco received a further increase in its economy.

As many American metropolitan areas spread outward, urban sociologists are interested in the effects of sprawl and in efforts to limit suburban expansion. To rein in urban sprawl, land use measures known as “smart growth initiatives” are gaining popularity. Urban growth boundaries are the particular type of initiative examined in this research. An urban growth boundary delineates where development is encouraged and where it is discouraged or prohibited. My first research question is whether urban growth boundaries contribute to the exclusion of racial minorities. I also explore whether urban growth boundaries affect residential segregation. I study 86 places throughout the U.S.: 43 matched pairs of places (with each pair comprised of a place with an urban growth boundary and a place without a boundary but otherwise similar to its partner). I also consider Atlanta, with no constraints on growth, and Portland, Oregon, a smart growth leader. Census data and residential segregation indexes from 1990 and 2000 for whites, blacks, and Hispanics are analyzed. The analysis consists of comparing change in the number of blacks and Hispanics due to in-migration and population growth in places with and without urban growth boundaries, and examining levels of segregation in them. I find that urban growth boundaries do not reduce blacks’ or Hispanics’ in-migration or population size. Also, the preponderance of the results supports the view that urban growth boundaries are not a cause of racial residential segregation.

My research considers both the challenges to and opportunities for implementing Smart Growth strategies in the City of Guelph’s urban growth centre, with a particular focus on the St. Patrick’s Ward neighbourhood. I follow the development of the downtown secondary plan-making process, spanning the time period from March 2010 to June 2011, which includes public participation by residents in the St. Patrick’s Ward and the city at large. The plan-making process started prior to, and continues after, my chosen timeframe, but the information collected in my case study brings to light the complexity of drafting a secondary plan for implementing Smart Growth strategies; the plan should ideally establish a framework for local interpretation and implementation of Smart Growth – the widely supported intensification and redevelopment strategy. I take the view that while a plan can be written to code and be argued rationally by experts, its effectiveness and ethical validity is a function of public participation in planning decisions that include values-rational anchoring, i.e. critical and ethical reflection on the value of a goal. Although many guiding principles and recommendations in the draft Plan are based on Smart Growth strategies, the physical scale of urban intensification is today very much focused on density numbers under the Growth Plan for the Greater Golden Horseshoe. The City of Guelph’s draft Downtown Secondary Plan primarily seeks to facilitate high-density, mid- to high-rise condominium and/or office developments. This may in turn lead to increased spatial segregation based on socioeconomic differences. Like in Toronto, Guelph’s Downtown Secondary Plan deregulates zoning by-laws and reduces bureaucratic ‘red tape’ for the high-density development industry through more flexible policies. Potential socioeconomic consequences like displacement of entire populations, services, and jobs from the newly re-valued places are, however, not addressed in the Plan; the policy language and conceptual thinking appears primarily geared toward redevelopment and infill. The overall lesson learned from studying the plan-making process leading up to the City of Guelph’s 1st Draft Downtown Secondary Plan concerns the role of planning in implementing Smart Growth; being a specific form of urban planning, Smart Growth implementation requires facilitation and education of stakeholders who are willing to compromise, but not beyond the point where “smart” is removed from “growth”. Given the overarching responsibility of the government to drive home this message, every stakeholder working for the public interest must collaboratively define, steer, and direct the process and private interests at each and every step along the road. The case of Guelph demonstrates the difficulty of prioritizing such a responsibility. Thus, potential future pressures to push and undermine Smart Growth’s synergistic and public participatory core value must be monitored and controlled with long-term objectives in mind.