In this thesis, risk management methods are investigated in order to integrate risk management practices into the Turkish Aerospace industry. The research presents the sequence of risk management processes as identification of risk, analysis of risk, risk planning etc. Risk analysis methods named as Risk Ranking and Analytical Hierarchy Process (AHP) are investigated in order to improve reliability and safety of the systems or processes in the aerospace industry. The main aim of using risk ranking and AHP together is to translate the knowledge in the Turkish Aviation Industry to a tangible form with a quantitative approach and to prepare a basis for probabilistic risk analysis. Instrument Landing System (ILS) has been considered only in order to facilitate a demonstration how risk management can be done in this context. This study investigates and seeks to create awareness for risk management practices within Turkish Aviation industry.

abstract: Over the years, aviation safety has been influenced by continuous implementations of both proactive and reactive policies by both regulatory boards and also, aviation service providers. This achievement has been possible mainly because of the safety management tools like the Aviation Safety Action Program (ASAP) which derives its roots from the much earlier Aviation Safety Reporting System (ASRS). Federal Aviation Administration (FAA) provides guidelines and procedures for installation and development of an ASAP, for every airline in the United States. In this study, how different United States air carriers apply ASAP in their organizations is investigated. / Dissertation/Thesis / Masters Thesis Technology 2016

Worldwide concerns over environmental issues and air travel’s continuous expansion have increased in recent years. This is due to rising carbon emissions caused by the aviation industry’s reliance on information technology and systems (IT/IS), which affects the environment. The review of the IT/IS and Green IT/IS investments evaluation literature has highlighted that there is a dearth of research on Green IT/IS evaluation regarding to the aviation industry. Most Green IT/IS evaluation studies focus mainly on benefits; however, cost is reported as one of the most crucial difficulties preventing organizations from adopting Green IT/IS. Generally, the focus is on the direct costs rather than the indirect costs because the latter are intangible and therefore hard to identify and quantify. However, they can have a great impact on the overall cost/budget and possibly on profitability. Although the traditional IS appraisal techniques are being used in the evaluation process, their incapability to capture the impact of intangibles and non-financial issues are apparent, which noticeably affects overall projects’ success. This research aim is to develop a model for Green IT/IS investments evaluation that enhances the understanding and management of the indirect cost associated with Green IT/IS investments within the aviation industry. The novel aspect of the model is its incorporation of the institutional theory, key internal organizational factors, together with human, organizational and environmental indirect cost factors into one model. This model was validated in the aviation industry in Thailand which had adopted and implemented Green IT/IS. The findings from an in-depth case study reveal that despite, Green IT/IS indirect costs not being perceived as costs and hence not being incorporated into the evaluation process, their effects remain, and lead to issues such as costs overruns, under-optimized budgets, and consequently projects failure. In addition, new Green IT/IS indirect cost factors have emerged which were missing from the current normative literature. Therefore, this research provides decision-makers with a useful model, a comprehensive taxonomy, a set of indirect cost factors that can be utilized during the evaluation process, and management strategies to assist in managing and controlling the impact of Green IT/IS indirect costs. Keywords: Green IT/IS Investments Evaluation, Indirect Costs, Costs Management, Costs overrun, Sustainability, Aviation Industry.

The aviation industry worldwide is changing dynamically in reaction to trends such as globalisation and with the need to increase market share to remain competitive. The African aviation industry still faces many problems in the institutional, technical and operational areas. Despite its potential for enhancing economic development, air travel to and from Africa remains a small percentage of world air travel. The African air route network is characterised by sparse demand, with long sector distances, low frequencies and high fares. This study investigates cost-effective hub-and-spoke (H&S) network design strategies for the African route network. An H&S network would minimise the cost of air transport and improve accessibility and connectivity. The study challenges the typical characteristics of H&S networks which are usually found in denser route networks. The design methodology used was the one most appropriate for the African region, using the datasets and tools available. As a first-cut analysis for Africa, the results of the research contribute to understanding the effectiveness of H&S networks in markets with sparse demand. A cost model previously developed by the author to calculate operating costs on a route was used. It eliminated the need to assume discount coefficients on links, as passenger demand increases, in a field with limited data. The cost indicators derived from the model were used as criteria for choosing the most efficient hubs within a cluster. These were compared with the hub location criteria in the literature which use distances and passengers. It was found that using the cost indicators gives a reasonably consistent method that lowers passenger travel time. The optimum number of clusters and hubs was found to be four. The geo-political network design method yielded the lowest network costs. The hubs are centrally located within the clusters: Morocco in the north, South Africa in the south, Kenya in the east and Nigeria in the west. They are characterised by high passenger demand and short node-hub sectors. There are significant benefits to be gained from using this hub network design, resulting from the economies of scale with higher passenger densities on routes. Furthermore, the benefits of higher service frequencies and better connectivity outweigh the extra travel time when routing through hubs. The study found that for sparse networks, the cheapest hub-location options have high passenger demand. The sector distance is crucial in lowering operating costs as smaller, more efficient short range aircraft can be operated. It is therefore more efficient to assign nodes to the closest hub to lower node-hub costs. The optimum number of hubs/clusters is thus determined by the distance threshold for the efficient aircraft. The effect of changing the cluster boundaries on network costs also depends on the change in node-hub distances between the clusters. As sparsity reduces, the economies-of-scale benefits outweigh the increasing operating costs of longer distances, allowing efficient operation of larger-capacity aircraft. This means that the location of the hubs and the number of clusters becomes more flexible, implying that node-hub links can become longer, reducing both the clusters and the number of hubs. / Thesis (PhD)--University of Pretoria, 2008. / Civil Engineering / PhD / Unrestricted

Over the years, the consumption of airplane travels has increased, and the aviation industry is seen as one of the fastest growing sources for greenhouse gases. As a result, the climate debate has intensified and the phenomenon “flight-shame” has been introduced which has contributed to more environmental awareness. Despite this, consumers still choose to fly and therefore, the purpose of this study is to explore how the climate debate and the phenomenon “flight-shame” influence consumer behaviour in the aviation industry. Empirical data was collected through four focus groups and a total of 18 travellers participated in this study. Based on the answers from the focus group, this study has found that factors such as consumer needs, values, and reference groups influence consumers’ decision to fly or not to fly differently depending on their travel motives. Moreover, the climate debate and “flight-shame” is also found to influence the consumer behaviour of some leisure travellers whereas they have mostly influenced consumer attitudes of business travellers. This study contributes to a deeper understanding of the underlying factors which influence consumers’ decisions to fly or not to fly. Moreover, it highlights the media as an additional influence on consumer behaviour which to the best of our knowledge has not been explored before. Also, the study sheds light on the importance of green marketing communication by airlines. Lastly, limitations are discussed, and future research is suggested to extend and address the generalizability of the findings by a quantitative research.

In the aviation industry, purchasing departments spend approximately 80% of revenues on procurement. Additionally, 62% of companies experience unforeseen expenses or hidden costs in the procurement process. Grounded in a conceptual framework of activity-based costing, the purpose of this case study was to explore strategies used by 5 upper-level supply chain management leaders at a maintenance repair and overhaul company in the aviation industry in the Southeastern United States to accurately forecast procurement costs. Data collection included 5 semistructured interviews, company documents, and annual reports. Through thematic analysis, the major themes that emerged from the data analysis were accuracy, competitive advantage, improved corporate performance, and improved total cost analysis. The findings may contribute to social change in the Southeastern region of the United States. The aviation industry is experiencing competition from low-cost countries and the economy of the region and hundreds of families and educational institutions depend on the success of the companies in the region for sustainability.

No description available.

No / The purpose of this paper is to utilize the existing theories and knowledge surrounding information systems (IS) evaluation and Green information technology (IT)/IS investments to develop a conceptual model for helping decision makers to overcome and reduce the impacts from Green IT/IS investment related to cost overruns or under-optimized budgets. The paper is discursive, based on the analysis and synthesis of literature pertaining to IS evaluation, Green IT/IS adoption and Sustainable/Green/CSR within an aviation context. Gaps in the preceding research have been identified, and a conceptual model is proposed. Additionally, further research and a methodology are suggested. The paper proposes a conceptual model that can identify factors including external factors derived from institutional theory, internal organizational factors, and a list of indirect costs associated with Green IT/IS investments for an aviation organization. As a conceptual paper, the study is limited to literature, identifying gaps, and proposing a model. The paper recommends further empirical validation of the proposed conceptual model. The conceptual model is helpful for decision makers within the aviation industry to enhance their understanding of the identification and management of indirect costs within the aviation context, which results in effective management of Green IT/IS indirect costs. The paper fills gaps in the knowledge of IS evaluation, Green IT/IS adoption/evaluation within aviation context through helping decision makers to understand, identify, and manage the associated indirect costs.

Braathens Regional Airlines is a result of a merger between multiple smaller, domestic airlines. As a result, the company has a large supply base for logistics services. This has lead to difficulties following up the operation and a complex supply structure. Therefore, in order to improve the overall logistics operations, the aim was to evaluate the current external transportation solution for the distribution of spare parts. The evaluation was accomplished through a comparison with two alternative scenarios: Supply base reduction and Third-party logistics (TPL). Supply base reduction meant removing suppliers from the current supply base, and Third-party logistics entailed outsourcing all external transportation to a single company. The comparison was based on five criteria: Transportation cost, Administrative workload, Delivery precision, Lead time and Flexibility. To be able to carry out a comparison, data regarding all the criteria was collected for all cases. This was done through extractions from enterprise systems from four of the case company's largest carriers, as well as through interviews with employees and a representative from a Third-party logistics service provider. After analyzing the provided data, the main conclusion was that both supply base reduction and TPL would improve the operation, where the case of TPL was expected to be slightly better. In order to further strengthen the analysis, the company has to develop its data collection procedures. In addition to the exact transportation solution, changes within the organization and its routines can improve the operations further.

The aviation industry is growing rapidly and the carbon dioxide emissions from the industry are following in the same manner. Biofuels made from edible feedstock have had an impact on lowering the emissions but at the same time an impact on increasing food prices. There are a few alternative fuels on the market today (TF-SPK, HEFA-SPK) which work in a blend with the petroleum based fuels, reducing the emissions from the aircrafts. Biofuels from next generation biomass, also called advanced biomass, such as algae and lignin, seem likely to be a good substitute for the first generation biofuels. The advanced biofuels are relatively costly to produce. This is due to the many steps in the production process, which restricts the usage of these sorts of fuels in the aviation industry. There are some problems associated with a jet fuel produced from 100% biomass. This is because the jet fuel produced from biomass differs from the jet fuels used today, making it unsafe to use in modern day airplane engines. That is why it is important to find an alternative jet fuel based on biomass that has the same characteristics as the conventional jet fuel, to be able to use the same transportation and engines that are in use today. Otherwise the high cost of advanced bio-jet fuels will make them unusable.