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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.
1

Análise dos padrões e recomendações da ICAO e da FAA para o projeto geométrico de aeródromos. / Analysis of ICAO and FAA standards and recommendations for aerodrome geometric design.

Silva, Evandro José da 22 March 2012 (has links)
Esta pesquisa de mestrado aborda o projeto geométrico de aeródromos a partir dos padrões e recomendações da ICAO (International Civil Aviation Organization) e da FAA (Federal Aviation Administration). Os padrões e recomendações da ICAO foram extraídos do documento Annex 14 to the Convention on International Civil Aviation e de documentos por ele referenciados. Para o caso da FAA, serviu de base o documento Airport Design: Advisory Circular 150/5300-13, incluindo-se aqueles nele referenciados e considerados pertinentes ao escopo do estudo. Seguindo-se uma estrutura de critérios de projeto proposta, os padrões e recomendações da ICAO e da FAA são comparados entre si, explicitando-se as diferenças nas especificações em si e também na forma como estas especificações são feitas por cada norma. Para o caso em que comparações diretas não são possíveis, as comparações são feitas a partir de um conjunto de aeronaves com características conhecidas. No caso dos critérios cuja avaliação é mais complexa, equacionamentos matemáticos são propostos. Apresenta-se também uma série de flexibilizações dos padrões, as quais são voltadas à acomodação das aeronaves A380-800 e B747-8 em aeroportos existentes. Estas flexibilizações provêm das conclusões do A380 Airport Compatibility Group (AACG) e do Boeing 747-8 Airport Compatibility Group (BACG), no caso dos padrões da ICAO. Para a as flexibilizações dos padrões da FAA, servem de base os Engineering Briefs (EBs) por ela emitidos. Finalmente, com base nos critérios de projeto considerados, é feita uma análise do Aeroporto Internacional de São Paulo/Guarulhos quanto à operação das aeronaves A380-800 e B747-8. / This Master Thesis tackles aerodrome geometric design according to the standards and recommended practices from the ICAO (International Civil Aviation Organization) and the FAA (Federal Aviation Administration). ICAO standards and recommended practices are from the document Annex 14 to the Convention on International Civil Aviation and from the referred documents. In turn, FAA documents herein addressed are the Airport Design: Advisory Circular 150/5300-13 and others referred in this one. By following a proposed design criteria framework, ICAO and FAA standards and recommended practices are compared. From such comparison, it is shown the differences in specifications itself and also in the way by which ICAO and FAA specify their standards. For the cases where direct comparisons are not possible, it is used a set of aircrafts of known characteristics. For the most complex design criteria, mathematical equations are also proposed. Another addressed issue is the flexibilization of design standards, which aims the accommodation of A380-800 and B747-8 aircrafts at existing airports. The ICAO flexibilizations are made from conclusions of the A380 Airport Compatibility Group (AACG) and the Boeing 747-8 Airport Compatibility Group (BACG). FAA flexibilizations are from this same agency, namely through EBs (Engineering Briefs). Lastly, the addressed design criteria are applied to analyse the operation of A380-800 and B747-8 aircrafts at São Paulo/Guarulhos International Airport.
2

Análise dos padrões e recomendações da ICAO e da FAA para o projeto geométrico de aeródromos. / Analysis of ICAO and FAA standards and recommendations for aerodrome geometric design.

Evandro José da Silva 22 March 2012 (has links)
Esta pesquisa de mestrado aborda o projeto geométrico de aeródromos a partir dos padrões e recomendações da ICAO (International Civil Aviation Organization) e da FAA (Federal Aviation Administration). Os padrões e recomendações da ICAO foram extraídos do documento Annex 14 to the Convention on International Civil Aviation e de documentos por ele referenciados. Para o caso da FAA, serviu de base o documento Airport Design: Advisory Circular 150/5300-13, incluindo-se aqueles nele referenciados e considerados pertinentes ao escopo do estudo. Seguindo-se uma estrutura de critérios de projeto proposta, os padrões e recomendações da ICAO e da FAA são comparados entre si, explicitando-se as diferenças nas especificações em si e também na forma como estas especificações são feitas por cada norma. Para o caso em que comparações diretas não são possíveis, as comparações são feitas a partir de um conjunto de aeronaves com características conhecidas. No caso dos critérios cuja avaliação é mais complexa, equacionamentos matemáticos são propostos. Apresenta-se também uma série de flexibilizações dos padrões, as quais são voltadas à acomodação das aeronaves A380-800 e B747-8 em aeroportos existentes. Estas flexibilizações provêm das conclusões do A380 Airport Compatibility Group (AACG) e do Boeing 747-8 Airport Compatibility Group (BACG), no caso dos padrões da ICAO. Para a as flexibilizações dos padrões da FAA, servem de base os Engineering Briefs (EBs) por ela emitidos. Finalmente, com base nos critérios de projeto considerados, é feita uma análise do Aeroporto Internacional de São Paulo/Guarulhos quanto à operação das aeronaves A380-800 e B747-8. / This Master Thesis tackles aerodrome geometric design according to the standards and recommended practices from the ICAO (International Civil Aviation Organization) and the FAA (Federal Aviation Administration). ICAO standards and recommended practices are from the document Annex 14 to the Convention on International Civil Aviation and from the referred documents. In turn, FAA documents herein addressed are the Airport Design: Advisory Circular 150/5300-13 and others referred in this one. By following a proposed design criteria framework, ICAO and FAA standards and recommended practices are compared. From such comparison, it is shown the differences in specifications itself and also in the way by which ICAO and FAA specify their standards. For the cases where direct comparisons are not possible, it is used a set of aircrafts of known characteristics. For the most complex design criteria, mathematical equations are also proposed. Another addressed issue is the flexibilization of design standards, which aims the accommodation of A380-800 and B747-8 aircrafts at existing airports. The ICAO flexibilizations are made from conclusions of the A380 Airport Compatibility Group (AACG) and the Boeing 747-8 Airport Compatibility Group (BACG). FAA flexibilizations are from this same agency, namely through EBs (Engineering Briefs). Lastly, the addressed design criteria are applied to analyse the operation of A380-800 and B747-8 aircrafts at São Paulo/Guarulhos International Airport.
3

The risk assessment of aircraft runway overrun accidents and incidents

Kirkland, Ian D. January 2001 (has links)
The UK Civil Aviation Authority has recognised the need for protection against the runway overrun over and above the standard protection recommended by ICAO. Normal protection for the aircraft is provided in ICAO's Annex 14 by the strip at the end of a runway, and a recommendation for the installation of a Runway End Safety Area (RESA). In the UK, the CAA has stated that as part of their safety management system the aerodrome licensee should review the RESA distance requirement for their individual circumstances on an annual basis through a risk assessment. However, current industry knowledge of circumstantial factors in runway overruns is limited. Also, current models that are used to determine likely overrun wreckage locations and RESA dimensions take no account of the operational conditions surrounding the overruns or the aerodrome being assessed. This study has attempted to address these needs by highlighting common factors present in overrun occurrences through the compilation and analysis of a database of runway overruns, and through the construction of a model of wreckage location that takes account of the conditions at an individual aerodrome. A model of overrun probability has been constructed and the consequences of an overrun have been examined. One outcome of the study is an awareness that the industry is in an extremely poor state of knowledge of operational characteristics of non-accident flights, which if not addressed will be a major barrier to future advancement of aviation safety improvement and research.
4

The modelling of accident frequency using risk exposure data for the assessment of airport safety areas

Wong, Ka Yick January 2007 (has links)
This thesis makes significant contributions to improving the use of Airport Safety Areas (ASAs) as aviation accident risk mitigation measures by developing improved accident frequency models and risk assessment methodologies. In recent years, the adequacy of ASAs such as the Runway End Safety Area and Runway Safety Area has come under increasing scrutiny. The current research found flaws in the existing ASA regulations and airport risk assessment techniques that lead to the provision of inconsistent safety margins at airports and runways. The research was based on a comprehensive database of ASA-related accidents, which was matched by a representative sample of normal operations data, such that the exposure to a range of operational and meteorological risk factors between accident and normal flights could be compared. On this basis, the criticality of individual risk factors was quantified and accident frequency models were developed using logistic regression. These models have considerably better predictive power compared to models used by previous airport risk assessments. An improved risk assessment technique was developed coupling the accident frequency models with accident location data, yielding distributions that describe the frequency of accidents that reach specific distances beyond the runway end or centreline given the risk exposure profile of the particular runway. The application of the proposed methodology was demonstrated in two case studies. Specific recommendations on ASA dimensions were made for achieving consistent levels of safety on each side of the runway. Advances made in this study have implications on the overall assessment and management of risks at airports.

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