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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
221

Expectations and reality of sustainable stormwater management : A review of implementation of Nature-Based Solutions - A case study of Southern Stockholm / Förväntningar och verklighet för hållbar dagvattenhantering : En översikt av implementering av naturbaserade lösningar - En fallstudie av Södra Stockholm

Dziubanii, Katarzyna Zofia January 2024 (has links)
The shrinking of permeable areas in favour of urban development is a phenomenon described in both scientific literature and policy documents. Changes in rainfall intensity and frequency following climate change are expected, but predicting the exact magnitude of these changes remains unclear. The uncertainty of what we will have to face in the future and when it will happen causes a blur of activities that may successively influence the mitigation of climate change. This study aims to explore and understand sustainable stormwater management within nature-based solutions (NBS) by reviewing both scientific and grey literature, as well as development plans in a specific area in southern Stockholm. Both risks and benefits of NBS implementation in urban stormwater management have been reviewed and described. Moreover, it is found in the literature that conceptual ambiguities and uncertainties of the NBS concept lead to weaker decision-making and planning processes. The goal of this study was to understand stormwater management recommendations for climate change mitigation, how these recommendations relate to detailed planning documents, what types of solutions are considered and proposed in the planning process, whether there is a link between the NBS and the proposed solutions, and finally, whether spatial analysis can help in the planning process in locating the strengths and weaknesses of the planned construction in flood-prone areas. The results of this study indicates whether the selected detailed development plans follow the recommendations of strategic documents. Detailed planning documents followed the recommendations to a limited extent. Moreover, in terms of spatial analysis, the analysed plans rarely referred to Skyfallsmodell, the model used to represent the flood-risk caused by 100-year rain event. In one of the cases of the early-stage detailed development plan, the new construction area were proposed inside an area with significant risk of flooding. The use of spatial analysis could help urban planners to identify both areas unsuitable for development and locate places suitable for NBS implementation. / Minskningen av genomsläppliga markområden till förmån för stadsutveckling är ett fenomen som beskrivs i både vetenskaplig litteratur och policydokument. Förändringar i nederbördsintensitet och storlek efter klimatförändringar förväntas, men det är fortfarande svårt att förutsäga den exakta storleken på dessa förändringar. Osäkerheten om vad vi kommer att behöva möta i framtiden och när det kommer att hända orsakar en oklarhet kring vilka aktiviteter som kommer att kunna påverka och mildra effekterna av klimatförändringarna. Denna studie syftar till att utforska och förstå hållbar dagvattenhantering genom naturbaserade lösningar (NBS) genom att granska både vetenskaplig och grå litteratur, samt utvecklingsplaner i ett specifikt område i södra Stockholm. Både risker och fördelar med NBS-implementering i urban dagvattenhantering har granskats och beskrivits. Dessutom framgår av litteraturen att begreppsmässiga oklarheter och osäkerheter i NBS-begreppet leder till svagheter i beslutsfattande och planeringsprocesser. Målet med denna studie var att förstå rekommendationer för dagvattenhantering för att mildra klimatförändringar, hur dessa rekommendationer relaterar till detaljerade planeringsdokument, vilka typer av lösningar som övervägs och föreslås i planeringsprocessen, om det finns en koppling mellan NBS och de föreslagna lösningarna, och slutligen - om rumslig analys kan hjälpa till i planeringsprocessen för att lokalisera styrkor och svagheter med den planerade konstruktionen i översvämningsutsatta områden. Resultaten av denna studie indikerar hur de valda detaljutvecklingsplanerna följer rekommendationerna i strategiska dokument. Detaljerade planeringshandlingar följde rekommendationerna i begränsad omfattning. Dessutom, när det gäller rumslig analys, hänvisade de analyserade planerna sällan till Skyfallsmodellen, som används för att representera översvämningsrisken orsakad av 100-årsregn. I ett av fallen med en tidig detaljplanen föreslogs nybyggnadsområdet inom ett område med stor risk för översvämning. Användningen av rumslig analys skulle kunna hjälpa stadsplanerare att identifiera både områden som är olämpliga för utveckling och att lokalisera platser som är lämpliga för implementering av NBS.
222

Integrering av miljöaspekter i detaljplanering : att uppnå integration för att säkra en hållbar utveckling

Oscarsson, Andreas January 2017 (has links)
Miljöhänsyn i detaljplanering tillämpas antingen via den ordinarie planprocessen eller via miljöbedömningar enligt Miljöbalken. Denna uppsats har ämnat att undersöka hur de två olika metoderna för miljöhänsyn i detaljplanering tillämpas och vilken påverkan de respektive metoderna  i sin tur har på den fysiska planeringen och det politiska målet om en hållbar utveckling. Uppsatsen grundar sig i utgångspunkten att en integration av miljöaspekter i planeringen är ett önskvärt tillstånd och att miljöbedömningar och annan miljöhänsyn innebär en integrering av miljöaspekter som markerar vägen mot integration. Diskussionen bygger på stridigheter mellan två paradigm - miljövård och planering, prioriteringar och samspel mellan de båda i strävan mot gemensamma övergripande mål.     Uppsatsen visar på ett behov av utvecklat samspel mellan översiktlig planering och detaljplanering, samt mellan ekologiska, sociala och ekonomiska aspekter. Även ett behov av mer aktivt hänsynstagande till miljön vid detaljplanering uppdagas. Hur detta ska ske är för vidare forskning att söka svar på. / Environmental consideration within the boundaries of Swedish detailed planning is taken either through the standard planning process or Strategic Environmental Assessments as they are described by Swedish law. This paper means to examine how the two different methods of environmental consideration are put to practice and in turn what affect the specific methods have on the spatial planning and the political goal of a sustainable development. The basis for this paper is that an integration of environmental consideration is a desired state, whilst Strategic Environmental Assessments and other forms of environmental consideration are integrating aspects; the road towards integration. The two paradigms, environmental protection and planning, marks the frame for the discussion; priorities and interaction between the two in the strive towards common comprehensive goals.    The paper points towards a need of a developed interaction between comprehensive planning and detailed planning, a developed interaction between ecological, social and economical aspects of a sustainable development and a more active consideration towards the environment in detailed planning. How this is supposed to come about is for further research to explore.
223

Les effets du débat public dans la nouvelle ville de Montréal : regard sur le plan d'urbanisme et sa mise en oeuvre

Van Neste, Sophie L. 02 1900 (has links)
Débat public, participation, délibération, autant de termes utilisés pour parler de normes et de dispositifs qui participeraient au nouvel « impératif délibératif » (Blondiaux et Sintomer 2002). Ce mémoire présente une analyse du débat public sur le plan d'urbanisme de Montréal avec un schéma d'analyse inspiré de celui de Simard et Fourniau (2007). Notre discussion du processus de débat porte non seulement sur la phase formelle des audiences publiques, mais aussi sur les étapes de concertation en amont et sur divers processus plus ou moins publicisés en aval. Ceci permet une réflexion d'ordre procédural plus riche qui considère la diversité des dispositifs dans une perspective de complémentarité. Pour chercher des effets du débat public sur le plan d'urbanisme, nous adoptons le parti de la congruence (Offner 1993), ce qui nous amène à une analyse de l'interaction entre des dynamiques contextuelles et des mobilisations des participants au débat. Certaines de ces congruences concordent avec des modifications au plan d'urbanisme. Notre étude propose aussi des implications du contexte particulier de la nouvelle ville de Montréal (avec la création des arrondissements) sur le contenu du débat public, sur certaines de ses manifestations procédurales ainsi que sur sa portée. Notre dernier chapitre montre que la dynamique du débat public en aval, dans la phase de mise en oeuvre du plan d'urbanisme, se déploie beaucoup plus dans les débats sur les grands projets que sur les mécanismes prévus à cette fin, qui comportent des embûches de par leur faible publicité et le caractère technique du processus réglementaire. Dans l'ensemble, notre étude met en lumière l'importance du contexte : autant le processus de débat que ses effets s'inscrivent dans des dynamiques contextuelles. / In this master thesis, the mechanisms of public debate used to discuss the urban master plan of Montreal are analysed with a framework inspired by Simard and Fourniau (2007), which contains a serie of deliberative criterion. Public debate is used as a terminology to include diverse possible mechanisms and norms of debate and of public participation. Our discussion covers not only the formal phase of the debate (in the public hearings) but also the informal forums. We conclude that this allows for a richer procedural analysis based on a perspective of complementarity between diverse mechanisms of public debate. In the search for effects of the public debate on the urban master plan, we found a number of cases where contextual dynamics interacted with the demands of participants. These « congruences » (Offner 1993) concurred with the evolution of the planning document. This master thesis also presents interesting findings related to constraints on public debate brought about by the particular political and institutional context of Montreal. The coordination between the scale of the central city and the newly constituted boroughs had implications on the content of the debate, on procedural components as well as on its impact in the plan and the implementation phase. This suggests that studies of public debate and of public participation events should consider as an important dimension the contextual dynamics.
224

Spatial ecology of marine top predators

Jones, Esther Lane January 2017 (has links)
Species distribution maps can provide important information to focus conservation efforts and enable spatial management of human activities. Two sympatric marine predators, grey seals (Halichoerus grypus) and harbour seals (Phoca vitulina), have overlapping ranges but contrasting population dynamics around the UK; whilst grey seals have generally increased, harbour seals have shown significant regional declines. A robust analytical methodology was developed to produce maps of grey and harbour seal usage estimates with corresponding uncertainty, and scales of spatial partitioning between the species were found. Throughout their range, both grey and harbour seals spend the majority of their time within 50 km of the coast. The scalability of the analytical approach was enhanced and environmental information to enable spatial predictions was included. The resultant maps have been applied to inform consent and licensing of marine renewable developments of wind farms and tidal turbines. For harbour seals around Orkney, northern Scotland, distance from haul out, proportion of sand in seabed sediment, and annual mean power were important predictors of space-use. Utilising seal usage maps, a framework was produced to allow shipping noise, an important marine anthropogenic stressor, to be explicitly incorporated into spatial planning. Potentially sensitive areas were identified through quantifying risk of exposure of shipping traffic to marine species. Individual noise exposure was predicted with associated uncertainty in an area with varying rates of co-occurrence. Across the UK, spatial overlap was highest within 50 km of the coast, close to seal haul outs. Areas identified with high risk of exposure included 11 Special Areas of Conservation (from a possible 25). Risk to harbour seal populations was highest, affecting half of all SACs associated with the species. For 20 of 28 animals in the acoustic exposure study, 95% CI for M-weighted cumulative Sound Exposure Levels had upper bounds above levels known to induce Temporary Threshold Shift. Predictions of broadband received sound pressure levels were underestimated on average by 0.7 dB re 1μPa (± 3.3). An analytical methodology was derived to allow ecological maps to be quantitatively compared. The Structural Similarity (SSIM) index was enhanced to incorporate uncertainty from underlying spatial models, and a software algorithm was developed to correct for internal edge effects so that loss of spatial information from the map comparison was limited. The application of the approach was demonstrated using a case study of sperm whales (Physeter macrocephalus, Linneaus 1758) in the Mediterranean Sea to identify areas where local-scale differences in space-use between groups and singleton whales occurred. SSIM is applicable to a broad range of spatial ecological data, providing a novel tool for map comparison.
225

A Bayesian approach to habitat suitability prediction

Lockett, Daniel Edwin IV 27 March 2012 (has links)
For the west coast of North America, from northern California to southern Washington, a habitat suitability prediction framework was developed to support wave energy device siting. Concern that wave energy devices may impact the seafloor and benthos has renewed research interest in the distribution of marine benthic invertebrates and factors influencing their distribution. A Bayesian belief network approach was employed for learning species-habitat associations for Rhabdus rectius, a tusk-shaped marine infaunal Mollusk. Environmental variables describing surficial geology and water depth were found to be most influential to the distribution of R. rectius. Water property variables, such as temperature and salinity, were less influential as distribution predictors. Species-habitat associations were used to predict habitat suitability probabilities for R. rectius, which were then mapped over an area of interest along the south-central Oregon coast. Habitat suitability prediction models tested well against data withheld for crossvalidation supporting our conclusion that Bayesian learning extracts useful information available in very small, incomplete data sets and identifies which variables drive habitat suitability for R. rectius. Additionally, Bayesian belief networks are easily updated with new information, quantitative or qualitative, which provides a flexible mechanism for multiple scenario analyses. The prediction framework presented here is a practical tool informing marine spatial planning assessment through visualization of habitat suitability. / Graduation date: 2012
226

Assessment of the potential for conflict between existing ocean space use and renewable energy development off the coast of Oregon

Sullivan, Colleen M. (Colleen Marie) 05 June 2012 (has links)
Oregon's ocean waters are a potential source of wind, wave, and tidal energy; of interest to renewable energy entrepreneurs and to the U.S. government as it seeks to bolster energy security. In order to install technology to capture this energy, however, it may be necessary to mitigate conflict with existing ocean space users. The objective of this research was to construct a conflict analysis model in a GIS to answer the following research questions: (1) Within the study area off the coast of Oregon, where are stakeholders currently using ocean space and how many uses overlap? (2) To what extent might existing ocean space use present potential for conflict with renewable energy development? (3) How do various types of uncertainty affect analysis results? (4) What are the implications of these findings for ecosystem based management of the ocean? All available spatial information on ocean space usage by commercial fishing, commercial non-fishing, recreational, Native American, and scientific communities was gathered. Stakeholder outreach with these communities was used to vet the collected data and allow each to contribute knowledge not previously available through GIS data clearinghouses maintained by government or interest groups. The resulting data were used as inputs to a conflict visualization model written in Python and imported to an ArcGIS tool. Results showed extensive coverage and overlap of existing ocean space uses; specifically that 99.7% of the 1-nm² grid cells of the study area are occupied by at least 6 different categories of ocean space use. The six uses with the greatest coverage were: Fishing – Trolling, Habitat, Military, Fishing - Closure Areas, Protected, and Marine Transportation - Low Intensity. An uncertainty analysis was also completed to illustrate the margin for error and therefore the necessity of appropriate stakeholder outreach during the renewable energy siting process, as opposed to relying only on a GIS. Ranking of each category by its potential for conflict with renewable energy development demonstrated which areas of the ocean may be particularly contentious. Because rankings are subjective, a tool was created to allow users to input their own rankings. For the purpose of this report, default rankings were assigned to each as justified by the literature. Results under these assumptions showed that space use and potential for conflict were highest between the coast and approximately 30 nm at sea. This is likely because certain space use is limited by depth (e.g., recreational use); there is increased shipping density as vessels approach and depart major ports; and increased fuel costs associated with traveling further from shore. Two potential applications of model results were demonstrated. First, comparison with existing wave energy permit sites highlighted relative potential for conflict among the sites and the input data detailed the specific uses present. Second, comparison with areas determined most suitable for development by the wave energy industry illustrated that areas of high suitability often also had high rankings for potential for conflict. It appeared that the factors that determined development suitability were often the same factors that drew current ocean space users to those locations. Current support at the state, regional and federal level under the National Ocean Policy for the use of marine spatial planning as a tool to implement ecosystem based management of the oceans requires that tools such as the one developed in this research are used, to ensure that all components of the marine ecosystem are considered prior to implementation of a management plan. The addition of renewable energy to the current social landscape of the ocean will reduce the resource base for many categories of ocean space use. Model results demonstrated that mitigation of conflict between development and existing space use is not merely a best practice supported by current policy, but a necessity. Results presented a visualization of the social landscape of the ocean that could help managers determine which stakeholders to engage during the initial stage of choosing a site for development. / Graduation date: 2012
227

A community-based approach for evaluating tradeoffs across marine ecosystem services in Oregon

Freeman, Peter M. 28 September 2012 (has links)
As competing uses of our coastlines increase, natural resource agencies are employing marine spatial planning (MSP) to designate areas for different uses or activities in order to reduce conflicts while achieving ecological, economic and social objectives. A central challenge of implementing MSP is development of a rigorous approach for analyzing tradeoffs across the provision of ecosystem services (i.e., the benefits humans receive from nature). This study develops an operational approach to this problem that is founded on community-based methods, ecological production theory, and multi-criteria decision analysis (MCDA). The approach merges ecological models with surveys to identify marine ecosystem services for use in tradeoff analysis. The approach allows for a single set of marine ecosystem services to at once be valued by local stakeholders and measured by biologists, thus connecting social and biological monitoring efforts. To develop the approach in a real-world context, I examined ecosystem services associated with nearshore marine ecosystems in Oregon, where marine reserves are being introduced for biodiversity conservation. I worked with stakeholder focus groups in three Oregon communities to identify 24 marine ecosystem services. I then linked the ecosystem services with ecological indicators, which I then consolidated to derive 11 items for use in a survey-based tradeoff analysis exercise. I administered the survey to a nonrandom sample of stakeholders in Oregon (n=31), from which their relative preferences and preference weights for ecosystem services were derived. The weights and preference measures may then be used in MSP decision-making. Furthermore, I grouped the stakeholder survey data in three ways: by location of residence (coastal vs. non-coastal), by eight categories of affiliation (e.g., business owners, conservationists, commercial and recreational fishers, etc.), and by resource use patterns. I then analyzed the various groupings of stakeholders for within- and between-group homogeneity of preferences. Results of the analyses showed that there are statistically significant variations in preferences within and between most groupings. Capturing the variations in stakeholder preferences is important when developing policies that affect different stakeholder groups. Thus, when implementing the survey instrument, I suggest random sampling of stakeholders stratified by location, affiliation, and resource use. This study provides one of the first examples of a systems-based approach to ecosystem service valuation operationalized to inform MSP, and novel features of the approach have a number of implications for advancing marine research and management. First, by using stakeholders to identify ecosystem services, the approach allows for a tailored implementation of ecosystem-based management at the community level. Second, by integrating ecological and economic information on the provision and value of ecosystem services, the approach provides relevant data for MSP decision-making during the siting, evaluation, and monitoring stages. And third, by applying both stated-preference and MCDA methods, the approach may capture the array of values represented by diverse stakeholder groups. / Graduation date: 2013
228

The (re)positioning of the Spanish metropolitan system within the European urban system (1986-2006)

Burns, Malcolm C. 18 July 2008 (has links)
The thesis seeks to demonstrate that during the period between 1986 and 2006, some of the principal cities of the Spanish metropolitan system1, have undergone significant change in terms of their European competitiveness. It is suggested that in the case of Madrid and Barcelona in particular this change has been of such a magnitude to proportion them a much more important place within the European spatial configuration than that which they occupied in the mid-1980s. Empirical evidence is offered to support this conjecture. The thesis lies wholly within the framework of spatial planning at the European territorial scale.It charts the comparative ascent of the Spanish cities from the moment of Spain's entry into the European Union (EU) in 1986 against the background of the development of European spatial policy, increased economic integration across Europe, the increased importance of the 'territorial' dimension of EU cohesion policy and an eventual waning of the applicability of the terminology of 'core' and 'periphery' to describe European geographical location.Part One (Chapter 1) addresses the processes of urbanisation in general from a global perspective and then focuses on metropolitan growth in a number of different historical contexts from the start of the 19th Century. Parts Two (Chapters 2-5) and Three (Chapters 6-9) of the thesis carry out analyses at two contrasting but complementary spatial scales. Part Two examines the metropolitan growth processes in Spain, in the period since 1857, detecting the historical moments in which there were surges in the metropolitan populations of the seven cities of the metropolitan system. The dimensions of the spatial units of analysis corresponding to the seven Spanish metropolitan urban regions are described, based upon a methodology first developed by the Universitat Politècnica de Catalunya (UPC) in the context of a transnational spatial planning project of the INTERREG community initiative2. These seven spatial units form the basis for a socio-economic analysis of the structure of the metropolitan system, drawing upon data principally from the 2001 Census. If by 1930 one of the key characteristics of Spain's urban system was having not just one but two cities (Madrid and Barcelona) belonging to the group of 27 cities across the world with populations in excess of 1 million inhabitants3, this same differentiation between the country's two largest cities and the remainder of the urban system is equally valid today. Spain's urban system remains clearly bicephalous in being dominated by these same two cities in terms of demographic and economic strength.Part Three begins by examining the evolution of European spatial policy against the background of an ever-enlarging European Union and changes with regard to the notion of cohesion - from a concept understood in terms of economic and social factors, to one in which the territorial dimension has become increasingly important. The European urban system is then critically examined through a number of key and influential studies, with particular regard to the rankings and hierarchies of metropolitan urban regions deriving there from and the changes in the placing of the Spanish metropolitan urban regions therein.Taking inspiration from the seminal contribution of Manuel Castells4 in the context of the structural changes resulting from the informational and technological revolution, the thesis seeks to replicate the concept of a 'space of flows'. This is carried out through a 'network analysis' approach drawing upon air passenger flows between some 28 European metropolitan urban regions of the EU15+2 group of countries, enabling the analysis of the interaction between these 28 cities. This methodology enables arriving at a number of descriptive indicators which in turn, through the application of a multi-dimensional scaling mathematical technique, permits comparing the functional and physical distances of each of the metropolitan urban regions from the centre of the 'conceptual space of air passenger flows' and the centre of gravity. The resulting map of the functional positioning of the cities offers a spatial vision of metropolitan Europe quite different to that based upon Cartesian coordinates. Such an approach enables demonstrating that cities such as Barcelona, Madrid, Helsinki, Lisbon and Athens, traditionally considered as physically peripheral to the European core area, appear to be more favourably positioned in functional terms. Furthermore in the case of Spain the results indicate that Barcelona lies closer to the centre of the conceptual 'space of air passenger flows' than Madrid.In light of this empirical evidence, together with the signs of increased economic integration across some parts of Spain, the prospects of Spain forming part of a wider European territorial concentration of flows and activities, and the recognition of the territorial capital of Madrid and Barcelona within recent EU spatial policy declarations, the thesis concludes in Part Four that these two metropolitan regions have undergone a clear consolidation and (re)positioning within the European metropolitan hierarchy.
229

Les effets du débat public dans la nouvelle ville de Montréal : regard sur le plan d'urbanisme et sa mise en oeuvre

Van Neste, Sophie L. 02 1900 (has links)
Débat public, participation, délibération, autant de termes utilisés pour parler de normes et de dispositifs qui participeraient au nouvel « impératif délibératif » (Blondiaux et Sintomer 2002). Ce mémoire présente une analyse du débat public sur le plan d'urbanisme de Montréal avec un schéma d'analyse inspiré de celui de Simard et Fourniau (2007). Notre discussion du processus de débat porte non seulement sur la phase formelle des audiences publiques, mais aussi sur les étapes de concertation en amont et sur divers processus plus ou moins publicisés en aval. Ceci permet une réflexion d'ordre procédural plus riche qui considère la diversité des dispositifs dans une perspective de complémentarité. Pour chercher des effets du débat public sur le plan d'urbanisme, nous adoptons le parti de la congruence (Offner 1993), ce qui nous amène à une analyse de l'interaction entre des dynamiques contextuelles et des mobilisations des participants au débat. Certaines de ces congruences concordent avec des modifications au plan d'urbanisme. Notre étude propose aussi des implications du contexte particulier de la nouvelle ville de Montréal (avec la création des arrondissements) sur le contenu du débat public, sur certaines de ses manifestations procédurales ainsi que sur sa portée. Notre dernier chapitre montre que la dynamique du débat public en aval, dans la phase de mise en oeuvre du plan d'urbanisme, se déploie beaucoup plus dans les débats sur les grands projets que sur les mécanismes prévus à cette fin, qui comportent des embûches de par leur faible publicité et le caractère technique du processus réglementaire. Dans l'ensemble, notre étude met en lumière l'importance du contexte : autant le processus de débat que ses effets s'inscrivent dans des dynamiques contextuelles. / In this master thesis, the mechanisms of public debate used to discuss the urban master plan of Montreal are analysed with a framework inspired by Simard and Fourniau (2007), which contains a serie of deliberative criterion. Public debate is used as a terminology to include diverse possible mechanisms and norms of debate and of public participation. Our discussion covers not only the formal phase of the debate (in the public hearings) but also the informal forums. We conclude that this allows for a richer procedural analysis based on a perspective of complementarity between diverse mechanisms of public debate. In the search for effects of the public debate on the urban master plan, we found a number of cases where contextual dynamics interacted with the demands of participants. These « congruences » (Offner 1993) concurred with the evolution of the planning document. This master thesis also presents interesting findings related to constraints on public debate brought about by the particular political and institutional context of Montreal. The coordination between the scale of the central city and the newly constituted boroughs had implications on the content of the debate, on procedural components as well as on its impact in the plan and the implementation phase. This suggests that studies of public debate and of public participation events should consider as an important dimension the contextual dynamics.
230

The rise of the Phoenix or an Achilles heel? : Breaking New Ground's impact on urban sustainability and integration

Smith, Tarryn Nicole Kennedy 12 1900 (has links)
Thesis (MA (Geography and Environmental Studies)--University of Stellenbosch, 2010. / ENGLISH ABSTRACT: In 2004, the then Department of Housing’s Breaking New Ground (BNG) policy introduced a compilation of principles that underlie a sustainable human settlement. The principles were aimed at guiding, amongst others, municipal officials in the decisions they take when faced with a housing development project. This thesis will set out to determine how municipal officials have taken up BNG’s principles for sustainable housing settlements as well as the perceptions, methods of implementation and degree of acceptance that housing and town planning managers have of BNG. In the study, the perceived relevance that these managers have of BNG within their non-metropolitan towns is explored using five of the fifteen leader towns of the Western Cape Province. This research has shown that BNG considers the compact urban form, coupled to other development considerations, as the most sustainable for South Africa. In terms of building sustainable human settlements: the low-income housing unit has evolved substantially since its conception, and that the current unit is held in far higher regard (by both municipalities and beneficiaries) than its predecessors. The design of this unit remains standardised due to a lack of funding for a more flexible design, but its structure allows for additions to be made at the cost of the beneficiary. Funding thus remains a major constraint to housing delivery. Municipalities feel that they are able to implement BNG, but that there are certain shortcomings in the document which prevent its full implementation. One of these shortcomings is the lack of an external funding mechanism for housing delivery, proposed in BNG, but never having materialised. Further, BNG focuses more on the metropolitan scenario and is not always relevant to non-metropolitan towns. Almost all of the municipalities have initiated inner city regeneration projects, but fewer have included the provision of social housing as part of their inner city rejuvenation. Subsidy housing is the most implemented housing typology, but these units often experience decay due to the absence of original owners who have (mostly illegally) sold or rented out their units. The one-erf-one-unit nature of subsidy housing is not seen as sustainable owing to space limitation experienced by most of the municipalities interviewed. Contrary to earlier research, in situ upgrading is a common occurrence in municipalities. However, there is a great need for stronger regional (or broader scale) planning regarding housing delivery. Low-income housing is strongly influenced by politics – a fact which municipalities say negatively influences housing delivery. Migration also poses a serious threat to municipal backlogs. Currently, the fight against an escalating demand for low-cost housing is a losing battle as the rate at which government is rolling out housing is vastly ineffectual. Municipalities deem that large-scale projects like the N2 Gateway might be a solution to their housing backlogs which, they concur, are at crisis point. However, municipalities indicated that their implementation of large scale projects will not follow the same path as the N2 Gateway – the planning of which is seen to be substandard. Currently, urban integration takes place on an income basis and not due to racial division. Inclusionary housing is seen as a relevant tool for the promotion of integration, but cannot be enforced to its full potential due to a lack of supporting legislation.

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