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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.
31

GIS-based MCDA for Integrated Risk Assessment and Prioritization of High-Risk Areas in the Göta River Valley

Forslund, Linda January 2024 (has links)
Climate change will bring more precipitation in Northern Europe and Sweden.Increasing precipitation will cause more floods, which will increase landslide risks. Inthe Göta river valley there are high landslide risks due to the thick layer of clay andquick clay present there. The river valley has been the home of numerous industriesfor a long time, which unfortunately have left large areas with contaminated soils alongthe river. The Göta river is the only outlet for Sweden's largest lake, called LakeVänern. With increasing precipitation, the water level of the lake will rise. This willlead to a larger tapping of the lake, to not cause floods around the lake. A largertapping will lead to higher flood and landslide risks in the river valley and thusincreasing the risk for contaminated soils entering the river.This study seeks to provide a comparison of two analyses where flood risk classes andheight above water level, functioning as flood uncertainties, as well as contaminatedsoil criteria are used in one of the analyses but not the other, to see if there is a difference.The study also seeks to show where along the river there are high risk areas inneed for climate adaptation measures to reduce risks.The method used was a multi-criteria decision analysis (MCDA) with the Analytichierarchy process (AHP) technique, to include several criteria in the analysis, pairwisecompare the criteria, and calculate their relative weights. The method was utilizedwith Geographic Information System software and AHP software. The robustness ofthe analyses were controlled by performing a One-Factor-at-a-Time sensitivityanalysis.The result of this study was the findings of four areas with high risk values along theGöta river. Three of those areas were found in both performed MCDA's. The fourtharea was only found in the second MCDA where the three additional criteria wereincluded in the analysis.The conclusion of this study is that the areas with the highest risks in relation to flood,landslide, and contamination risks are located in the localities of Lilla Edet, Älvängen,Sure, Göta, and in the city of Gothenburg. Also, there is a difference in the resultswhen including the three additional factors, another area is highlighted as having highrisks. The method used in this study makes it clear that the usage of five or eight criteriacan produce results that are similar to each other. However, by using eight criteriainstead of five and thus including additional risks that are connected with each other,there is an impact on the result, which becomes more precise.
32

O pensamento tecnocr?tico, a setoriza??o e as pr?ticas permissivas: a quest?o das ?reas contaminadas no planejamento municipal / Technocratic thinking, sectorization and permissive practices: the question of contaminated areas in municipal plannings / El pensamiento tecnocr?tico, la sectorizaci?n y las pr?cticas permisivas: la cuesti?n de las ?reas contaminadas en la planificaci?n municipal

Silva, Ricardo Alexandre da 23 February 2018 (has links)
Submitted by SBI Biblioteca Digital (sbi.bibliotecadigital@puc-campinas.edu.br) on 2018-05-08T17:03:36Z No. of bitstreams: 1 RICARDO ALEXANDRE DA SILVA.pdf: 18031586 bytes, checksum: 0c2ac39aa49f7861e0e1a24eeb8e2ce5 (MD5) / Made available in DSpace on 2018-05-08T17:03:36Z (GMT). No. of bitstreams: 1 RICARDO ALEXANDRE DA SILVA.pdf: 18031586 bytes, checksum: 0c2ac39aa49f7861e0e1a24eeb8e2ce5 (MD5) Previous issue date: 2018-02-23 / The issue of contaminated areas is a problem that has increased in recent decades. The identification of numerous contaminations - old and recent - in the soil and water medium has affected the population, caused numerous health problems, and the environment, with the commitment of flora and fauna. In addition, economic activities carried out both in urban and rural areas have been hampered by the juxtaposition of the industrial production means that generate various types of contamination. The actions carried out by the public managers have not followed the breadth and expansion of the cases already detected. Generally the role played by public managers, especially municipal power, has been marked by great leniency and is evoked from their clearly technocratic and patrimonialist management structures . The legal competence regarding the licensing of activities with risk of contamination, national and state elevation in Brazil and in other countries studied, with sectorial and disciplinary perspective, in which industry is always seen as a positive factor, does not reach the problem as a territorialized phenomenon, with implications for the current and future use of localities. The study in question proposes new guidelines for the treatment of contaminated areas, with emphasis on the managerial integration of levels of government, access to information and monitoring of society. They were elaborated from the analysis of several occurrences of contamination, observing the causes, effects, agents and, mainly, the position adopted by the public managers, in particular the municipal ones, since they are the direct responsible by the regulation of the territory, through the legislation of land use and occupation in the municipal space. / La cuesti?n de las ?reas contaminadas representa un problema que ha aumentado en las ?ltimas d?cadas. La identificaci?n de innumerables contaminaciones - antiguas y recientes - en el suelo y medio h?drico ha afectado a la poblaci?n, ocasionado innumerables problemas de salud, y al medio ambiente, con el comprometimiento de la flora y la fauna. Adem?s, las actividades econ?micas, ejecutadas tanto en el espacio urbano y rural, han sido perjudicadas por la yuxtaposici?n de los medios de producci?n industrial que generan diversos tipos de contaminaciones. Las acciones ejecutadas por los gestores p?blicos, no han acompa?ado la amplitud y la expansi?n de los casos ya detectados. Generalmente el papel ejercido por los gestores p?blicos, en especial el poder municipal, ha sido marcado por una gran lenidad y que es evocada a partir de sus estructuras gerenciales claramente tecnocr?ticas y patrimonialistas. La competencia jur?dica sobre el licenciamiento de actividades con riesgo de contaminaci?n, alzada nacional y estadual en Brasil y en otros pa?ses estudiados, con perspectiva sectorial y disciplinaria, en la cual la industria es siempre vista como factor positivo, no alcanza el problema como fen?meno territorializado, con implicaciones en el uso actual y futuro de las localidades. El estudio en cuesti?n propone nuevas directrices para el tratamiento de ?reas contaminadas, con destaque a la integraci?n gerencial de los niveles de gobierno, el acceso a la informaci?n y acompa?amiento de la sociedad. Se elaboraron a partir del an?lisis de diversas ocurrencias de contaminaci?n, observ?ndose las causas, efectos, agentes y, principalmente, la postura adoptada por los gestores p?blicos, en particular los municipales, pues son los responsables directos por la regulaci?n del territorio, a trav?s de la legislaci?n de uso y ocupaci?n del suelo en el espacio municipal. / A quest?o das ?reas contaminadas representa um problema que tem aumentado nas ultimas d?cadas. A identifica??o de in?meras contamina??es ? antigas e recentes - no solo e meio h?drico tem afetado a popula??o, ocasionado in?meros problemas de sa?de, e ao meio ambiente, com o comprometimento da flora e a fauna. Al?m disso, atividades econ?micas, executadas tanto no espa?o urbano e rural, tem sido prejudicadas pela justaposi??o dos meios de produ??o industrial que geram diversos tipos de contamina??es. As a??es executadas pelos gestores p?blicos, n?o tem acompanhado a amplitude e a expans?o dos casos j? detectados. Geralmente o papel exercido pelos gestores p?blicos, em especial o poder municipal, tem sido marcado por uma grande leni?ncia e que ? evocada a partir de suas estruturas gerenciais claramente tecnocr?ticas e patrimonialistas. A compet?ncia jur?dica sobre o licenciamento de atividades com risco de contamina??o, al?ada nacional e estadual no Brasil e em outros pa?ses estudados, com perspectiva setorial e disciplinar, na qual a ind?stria ? sempre vista como fator positivo, n?o alcan?a o problema enquanto fen?meno territorializado, com implica??es no uso atual e futuro das localidades. O estudo em quest?o prop?e novas diretrizes para o tratamento de ?reas contaminadas, com destaque ? integra??o gerencial dos n?veis de governo, o acesso ? informa??o e acompanhamento da sociedade. Foram elaboradas a partir da an?lise de diversas ocorr?ncias de contamina??o, observando-se as causas, efeitos, agentes e, principalmente, a postura adotada pelos gestores p?blicos, em particular os municipais, pois s?o os respons?veis diretos pela regula??o do territ?rio, atrav?s da legisla??o de uso e ocupa??o do solo no espa?o municipal.

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