1,720,953 research outputs found
History of aviation safety; the satisfying sighs of relief due to developments in Aviation safety
No full text”Aviation safety is an Integral part of my career. Being part of TU Delft’s impressive record of research on Aviation safety, my career has been with a sense of purpose and a responsibility to equip students to deal with the status quo challenges on Aviation safety, developments, Investigations and Optimizations. As I retire from the faculty with a gratifying sigh of relief, It’s a pleasure for me write this article on my experience and career along the progressive stages of Aviation safety.“Aerospace Engineerin
Safety: A system state or property?
Get PDFSafety is frequently addressed as an emergent property of complex and dynamic systems. This contribution advocates the validity and importance of incorporating intrinsic technological hazards and systemic interrelations from a multi-actor perspective in the early phases of design and development. This perspective creates inherent properties in various system states, which may manifest themselves as emergent properties during operations. These safety properties are based on their business models, selectively focusing on primary system components such as infrastructure, vehicles or traffic management. Experiences with major aviation and railway projects highlight the potential of engineering design approaches such as multidisciplinary design optimization, value engineering and vectorial state/space modelling. Such an approach has high change potential for a specific category of high energy density complex socio-technical system
How did aviation become so safe, and beyond?
No full textAviation has been recognized as one of the ultimate safe socio-technical systems. This contribution discusses the conditions and context that moulded the system safety to its present level by applying integral safety, a sectoral approach and safety as a strategic value. At present the aviation system consists of institutional arrangements at the global level, a shared repository of knowledge and operational experiences, feedback from reality, the notion of Good Airmanship, together with the choice of technology as the flywheel for progress. This architecture made aviation a Non-Plus Ultra-Safe system characterized by a safety performance level of beyond 10-7 accident rate. To cross this mythical boundary in legacy systems like aviation, it is imperative to apply game changers such as socio-technical systems engineering, disruptive technologies and innovation transition management. In such a transition, a shift in focus occurs from performance to properties, from hindsight to foresight, highlighted by the case study of the stall recovery device, the Kestrel concept.Transport and Plannin
Safety as Airline Business Aspect: From Data to Action by A Value Model for Big Data and Feedback Method for Small FlightStories
No full textThis thesis proposes the of integrating safety, economics, and passenger experience and draws on the author's research and experience in aviation to develop a more comprehensive approach to airline business management. The research closes the gap between business and Safety Management Systems in airlines by introducing two novel and complementary concepts: the Airline Value Production Management Model and FlightStory as a tool to enable pilots as intelligent feedback providers.The thesis discusses two interconnected research projects aimed at improving safety and efficiency in airline operations. The first project, AVPMM, focuses on network performance management, while the second project, FlightStory, aims to empower flight crew as intelligent feedback providers.This research thesis focuses on airline safety and value production management, with an emphasis on using big data and feedback methods to improve safety and value production. The author presents a specific solution called FlightStory, which empowers flight crew as intelligent feedback providers. The thesis includes a literature review, research questions and methods, and an evaluation of FlightStory's effectiveness. The AVPMM model is proposed as a logical extension of the increase of lower specific levels into network, region, route, and flight. The thesis also discusses the challenges of conducting research in a company context and provides recommendations for further research.The author shares three war stories from their experience in the aviation industry, highlighting common problems in safety management during flight operations and how it relates to network business decisions. The author aims to develop a new solution for integrating safety and business management in international commercial aviation.The thesis discusses the challenges of current feedback systems in aviation safety reporting, including the reductionist approach, the lack of qualitative data, and the bias towards Safety-I events. The review suggests the need for a reporting system that collects organizational factors and takes safety out of its silo and into the context of other key performance indicators. The author developed an app designed to collect FlightStory data from the crew, inspired by sensemaking and storytelling concepts.The thesis proposes an Airline Value Production Model for managing safety in the business context of value production. The review also discusses the lack of an explicit value production model and the need to manage safety as a business aspect, integrated with other essential variables such as economy and customer experience.The research projects provide innovative feedback methods and an integrated approach to value production management, which can be viewed as disruptive innovations. The thesis concludes with a vision of a Value Production Centre (VPC) that integrates business and safety management using the AVPMM model. The VPC aims to provide a holistic approach to value production management, where safety is not just a compliance issue and operational constraint but an integral part of the business strategy. The thesis provides a valuable contribution to the aviation industry by proposing a new approach to safety management that integrates with business management and value production. The FlightStory app and AVPMM model offer practical solutions for improving safety and efficiency in airline operations, and the research provides a foundation for further development and implementation of these solutions
Heliport Gorinchem - Designing an Aerial Logistic Network
No full textThe Dutch city of Gorinchem has great economic growth opportunities for the future, but is limited by its transport system. It is strategically located at a crossroad of two motorways and two rivers, the Boven-Merwede and the Linge. Gorinchem is home to a number of multinationals, among others Damen Shipyards and Van Oord. This sets the right conditions for economic growth. However, the city roads are congested and the limited accessibility of the area by train and car slows this economic growth. Therefore, a solution is required to make Gorinchem more accessible. The development of an aerial network is an approach that could comply with the vision of the city as an innovative regional business centre. This project, called Heliport Gorinchem, aims to provide a final design for an aerial logistic network that can be implemented in Gorinchem in the year 2020. The project consists of three main parts: the project initiation and definition, a conceptual design part, and a detailed design part. This report contains a review of the project initiation and definition, and the conceptual design part. The main focus of this report is on the detailed design part of the project. The aim of the project initiation and definition is to structure the project, come up with a time management plan and organise the group. Also, the requirements and constraints for the project are set. The goal of the project is to design a concept for a sustainable logistic network of multi-purpose aerial vehicles in Gorinchem, competitive with the current transport market, within ten weeks. A market analysis is performed after the project initiation, to identify the traffic problem in Gorinchem on a local and regional scale. Locally, the city has three connection points to the motorways and these points form the entry and exit of the city. The capacity of the roads to these points is too low for the traffic they have to handle. It is estimated that there is an overload of 4000 travellers per hour during rush hours. On a regional level, a connection with a railway to the north and south of the country fails to appear and there is no aerodrome near Gorinchem to have any connection by air. The outcome of the conceptual design part is a concept for an operational aerial network. To come up with ideas for possible concepts for the network, multiple brainstorm sessions are held. A selection procedure is executed in order to reduce the amount of possible concepts and to come up with a final concept for the detailed design part of the project. From this, a combination of a linear local and a linear regional network is selected. The verification of the conceptual design has led to the conclusion that an aerial network alone will not solve the traffic problem entirely at this moment. However, there is a demand for a better accessibility and economic growth in of the city. Therefore the aim of the project is altered into a new vision. The goal of the aerial network is to serve economic growth of the city. An aerial network will allow Gorinchem to improve its accessibility to important locations, while becoming an important link in the aerial infrastructure of the Netherlands. The aim is therefore to implement an aerial network before 2020. In the short term, up to 2030, the goal is to realise a profitable aerial network. In the years thereafter an expansion of the aerial network will allow for an improvement of the traffic situation in Gorinchem. This is the aim of the long-term vision. The detailed design part elaborates on the design of all aspects of the aerial network in the short term, while keeping its long-term development in mind. The main customers are identified to be business travellers. Other smaller markets are determined as well, like tourism, medical assistance and governmental flights. The aerial vehicle for the short term is selected to be an Eurocopter EC135 helicopter that makes use of a hybrid engine and noise reducing technology. The helicopter should operate under visual flight rules to limit the investment costs. The aerodrome is designed to be a self-sustaining heliport with a low investment cost of 750,000 euro for the landing site. For the location, the industrial estate Avelingen at the edge of the suburbs is chosen. It has a direct connection with the motorway and can be linked with the future railway from Breda to Utrecht. Furthermore, it is located at the Boven-Merwede river which has an extra advantage. An approach route for helicopters will minimise the environmental impact regarding noise and safety. A business model for the aerial network has been developed and analysed. Unfortunately, the business model shows that it will not be profitable in the short term to set up a transport service for business travellers. The main reasons for this are the high maintenance costs of the vehicle, call out costs, and airport charges. From the conducted research, it can be concluded that it is possible to realise a heliport in Gorinchem and start its operations in the year 2020. Although the implementation of a profitable aerial network seems currently not feasible, it is reasonable to invest in the construction of a heliport as there is demand for a heliport in Gorinchem. It is advised to develop a heliport that allows companies like Damen Shipyards and Van Oord to use the facilities with their own helicopter. Furthermore, this will be a first and innovative step in the development of a regional aerial network, which provides fast and high quality transport. This can offer Gorinchem the opportunity to take a leading role in aerial transportation on a regional scale in the Netherlands . Furthermore, it will support the economic growth of the city. Further research should focus on the design of a new aerial vehicle. It is recommended that maintenance and fuel cost are reduced for the new aerial vehicle in order to make the aerial network profitable. Other research should focus on the expansion of the aerial network and find alternative locations with low landing charges. In this way, the high landing fees at the airports can be avoided and the possibility to make a profitable aerial network will increase. It is recommended to perform a market analysis on the willingness to pay of the future business travellers and other markets. This will have influence on the income of the business model. In the best case scenario, the design can even become profitable in the short term.Air Transport and OperationsAerospace Engineerin
The ERTMS railway signaling system: Deals on wheels? An inquiry into the safety architecture of high speed train safety
No full textAerospace Engineerin
A multi criteria method for bid / no bid decision making based on competitiveness: the case of TBI
No full textCivil Engineering and GeosciencesStructural EngineeringConstruction Management and Engineerin
Safe and swift performance, a conceptual assessment of a new river sea pusher system
No full textAerospace Engineerin
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