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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

Investigation of Runway Incursion

Markne, Joakim, Ström, Carl January 2013 (has links)
Runway incursions (RWYI) are a daily phenomenon in the world and is a threat to safety. The severity of a RWYI can be high and it is a problem that is subject to improvements. The purpose of this report is to present the findings after an investigation of RWYI in general and what is being done to prevent it in Sweden. The main focus is to present the problem from an air traffic controller (ATCO) and pilot perspective. However, we are also presenting all the different stakeholders involved in the problem followed with associated risks and means to prevent a RWYI from happening. We also present technical aids and working methodology used today in air traffic control towers in Sweden and in addition some technology implemented abroad. Some suggested improvements that the stakeholders can take into consideration when developing their work to reduce the risk for a RWYI is also presented. The method used during the investigation has mainly been literature studies, interviews with different stakeholders and study visits to Bromma tower, Arlanda tower and SAAB/Linköping tower. We have found that the pilots and vehicle drivers are the most contributing stakeholders to a RWYI in Sweden. The investigation also shows that ATCOs and pilots share some opinions regarding risks but also improvements. Both ATCOs and pilots agree that weather with bad visibility, as well as darkness, is increasing the risk for an incident or accident to happen. Furthermore, complacency, fatigue and tiredness are also risks that are shared between ATCOs and pilots. We have also found that airports have different means to prevent a RWYI. At Arlanda, the ATC system is well developed with electronic equipment and stop bars at the taxiways, which is not the case for either Bromma or SAAB/Linköping airport. Even pilots in different airlines operate differently when about to enter a runway and there is no standard operating procedure (SOP) developed in all companies. Some of the suggested improvements are to implement stop-bars on every airport and that it should be mandatory to equip vehicles operating on the maneuvering area with maps.
2

Aircraft head-up display surface guidance system

Gu, Jinxin 11 1900 (has links)
The continues growth in aviation and passenger numbers is putting more pressure on airports to become more efficient in order to reduce the number of delays due to external factors such as weather, pilot deviation/errors and airport maintenance traffic. As major hubs (e.g. Heathrow, New York or Paris) expand in size to accommodate more traffic; aircraft surface movement and management become more complex and the margin for error is even lower. The traditional airport traffic management tools in large airports are increasingly stretched to the limit in meeting safety and traffic throughput requirements. This presents a huge challenge to the efficiency of airport operations because of the increased number of departures and arrivals at those airports. New technology for surface movement needs to be implemented in order to increase the safety and airport capacity. The federal aviation authorities in the USA was first to introduce the concept of Advanced Surface Movement Guidance and Control System (A-SMGCS) to address this problem in commercial airdrome operations. The system facilitates pilot recognition of the route designated by the traffic controllers and uses warning information to make them aware of any potential deviations/incursions. The system is introduced to enhance the efficiency of surface movement by increasing the aircraft taxiing speed and reducing any pilot errors during bad weather conditions. This thesis focuses on the surface guidance system for aircraft equipped with head-up display. A simulation model of the virtual environment using FlightGear and Simulink is developed based on the study of a moving map and surface guidance system for Head-Up Display (HUD) to assign the route, guide the aircraft on the designated taxiway and avoid potential conflict with other aircraft. A method of generating an airport in FlightGear and driving an airport moving map to rotate and move is also illustrated which includes the data processing flow chart and system flow chart. The Ordnance Survey National Grid and world coordinate system is discussed and used to transform from GPS latitude and longitude data to the position on Nation Grid. There is also an explanation of the 3D viewing process to generate the virtual taxiway geometries on the HUD. The communication between the traffic console and airplane is also discussed.
3

Learning Lessons from Incidents to Improve Runway Safety: What helps controllers create information-rich reports that improve our knowledge of runway incursions and their causes?

Divya Bhargava (11204031) 29 July 2021 (has links)
<p>A runway incursion occurs when an aircraft, ground vehicle, or a pedestrian is present on a runway when they were not supposed to be there. Runway incursions are a decades-old and continuing problem. The runway incursion between two Boeing 747s at Tenerife airport in 1977 is still the worst accident in aviation history. Despite the aviation community’s efforts to mitigate runway incursions, the number of incursions has not decreased. Though most of the runway incursions that occur today are near-misses or incidents, and do not result in injuries or aircraft damage, we cannot count on fortune to prevent another deadly accident.</p><p>While the COVID-19 crisis has slowed air traffic, the industry is optimistic about recovery and return to the growth in air traffic we have seen over the past decade. With this growth comes the potential for more runway incursions. Therefore, we must develop better ways of preventing incursions. Runway incursion incidents are one way to learn more about how we can prevent similar incidents in the future and reduce the probability of serious accidents. Unfortunately, most incident reports lack detailed information on the causes of runway incursions. In the United States, trained investigators at the National Transportation Safety Board investigate aviation accidents, but not most incidents, including incursions. Air traffic controllers on duty at the time of incursion report the incident to the FAA. While most controller reports explain what happened, they often do not explain why the incident happened. We need deeper insight into why incidents occur so that we can develop more effective measures to reduce incursions.</p><p>After controllers submit their incident reports, reviewers at the FAA go through the controller-generated reports and determine the need for further investigation. They may contact the controllers for more information or talk to the pilots involved. This research considers one aspect of the reporting process — the reporting form. The research hypothesis is that an alternative reporting form that asks detailed questions and guides the controller to look deeper into an incident can provide more details on human error and causes of these errors than the current form, which does not necessarily prompt controllers to gather all the details of the incident.</p><p>The design of the alternative reporting form is based on the theoretical framework of expert systems. Expert systems, which provide tailored questions and guidance to medical doctors and others, have proven useful in other fields. The resulting alternative tool aims to guide controllers into answering three major questions: what happened (which aircraft were where, and when), how it happened (e.g., controller gave the wrong instruction), and why it happened (e.g., controller was fatigued).</p><p>To investigate how controllers interact with different reporting formats and what helps them or detracts them from creating useful reports, the research experiment involved controllers reporting two hypothetical runway incursions either using the alternative reporting tool or an online survey based on the current FAA form. The experiment used surveys, think-aloud protocols, observations, and interviews to collect data on what controllers included in their reports and how controllers generated these reports. The findings helped compare the type of information we get from the two reporting formats, and how the reporting formats affected the quality of the incident reports.</p><p>Overall, the alternative tool-generated reports provided more information than the online survey based on the current FAA form. Each controller who participated in the experiment approached preparing an incident report differently and different factors motivated them to specify details of the incident. While the format of the alternative reporting form helped one controller talk to the pilot and learn more about why the pilot made an error, the format did not have the same impact on another controller.</p><p>This research identifies ways of helping controllers prepare more useful reports. This research may help the FAA improve data collection. More useful reports in the future can help the aviation community identify the cause of human errors leading to incursions, and develop more effective mitigation strategies, ultimately saving lives.</p><p><br></p>
4

Reducing Runway Incursions at the Nation's Five Busiest Airports, 2009-2011

Byrne, Theodore Patrick 01 January 2017 (has links)
During the last decade, the number of runway incursions at airports in the United States and worldwide has increased. The Federal Aviation Administration (FAA) has developed the Runway Safety Program (RSP) to address these concerns and improve the safety of the National Airspace System (NAS). The purpose of this study was to determine whether the FAA 2009-2011 RSP has effectively reduced runway incursions at the nation's 5 busiest airports using data from 3 years before and 3 years after the RSP. A comparison group interrupted time-series design was used to determine the impact of the RSP. A public policy framework served as the theoretical foundation for this study. Data were collected from the FAA on runway incursions occurring from October 1, 2005 through September 30, 2014 and assessed for appropriate inclusion criteria. An analysis of the dataset using chi-square and Mann-Whitney U tests established that though the RSP has made progress, it has not effectively reduced runway incursions at the nation's 5 busiest airports. The RSP has decreased the number of runway incursion caused by air traffic controllers, reduced the overall severity of runway incursions, as well as positively influenced when, during the phase of flight, most runway incursions happen. An increase in pilot deviations suggests finding better ways to reduce these type of runway incursions is critical, especially with the forecasted growth in air travel. Continued deployment of runway safety technology is also important. With increased aviation safety, positive social change will occur through enhanced public safety while traveling, safer working environments at airports, as well as economic stimulus resulting from increased aviation activities benefiting individuals and developing countries throughout the world.
5

Flying is Dangerous - That is why it is so safe : Miscommunication in aviation

Thörnqvist, Christer January 2020 (has links)
In this essay one has been investigating some of the reasons why aviation incidents take place and also examine what strategies there are to minimize the risks - primarily regarding miscommunication which often seems to be a contributing element or a direct cause in aviation mishaps. The aim of this study is to highlight and raise awareness about this field of study from a communicative point of view.The study has been performed using qualitative interviews with pilots, Air Traffic Controllers and other professionals within the aviation industry. The research has been somewhat hampered by the outbreak of the COVID-19 pandemic but not to an extent that would have corrupted the findings.The key results have indicated that miscommunication still is a problem in the aviation industry, but less so on the local national stage than in a global perspective. Two particular occurrences that have been given extra attention are runway incursions and the use of Controller Pilot Data-Link Communications.One has established that there are technical systems available on the market to improve communication performance and that runway incursion is a problem that grows with the complexity of the airport environment. One has also been made aware of the fact that human factors can only be mitigated so far with technology. The principal question has been: How can Miscommunication in Aviation be reduced? / I denna uppsats har vi tittat på några av de bakomliggande orsakerna till att incidenter fortfarande sker inom trafikflyget samt undersökt vilka strategier som föreligger för att minimera dessa risker - primärt pga felkommunikation vilken ofta tenderar att vara en bakomliggande eller direkt utlösande faktor i flygolyckor. Syftet med denna studie är att uppmärksamma och öka medvetenheten om dessa fenomen från en kommunikativ synvinkel.Studien har genomförts medelst en kvalitativ intervjumetod med piloter, flygledare och andra initierade yrkesgrupper inom flygindustrin. Forskningen har hämmats något pga utbrottet av COVID-19 pandemin men inte i en sådan omfattning att resultatet har förvanskats.De huvudsakliga resultaten har indikerat att felkommunikation fortfarande är ett problem inom flygbranschen, men i en långt mindre omfattning på lokal nationell nivå än i ett globalt perspektiv. Två specifika företeelser som har getts extra uppmärksamhet är rullbaneintrång samt användandet av CPDLC (datalänk).Vi har konstaterat att det finns tekniska system på marknaden för att förbättra prestandan på kommunikationen samt att rullbaneintrång är ett problem som växer med flygplatsens storlek och komplexitetsgrad. Vi har också uppmärksammats på att den mänskliga faktorn endast delvis kan undanröjas med hjälp av teknologi. Den huvudsakliga fågeställningen har varit: Hur kan felkommunikation inom flyget reduceras

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