Identification of Potential Urban Air Mobility (UAM) Safety Hazards from Helicopter Accident Data – Methodology and Preliminary Results
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Safety is paramount for aviation. The development of urban air mobility (UAM) is not excluded from consideration, however, while research generally focuses on technical and operational issues, few have been done regarding safety. It is clear that there are a lot of unknowns regarding either the design or operation of the UAM vehicles, so this research paper proposes to extract as much information as possible from helicopter accidents in urban environments. While no detailed technical information about UAM vehicles and operations is available, helicopters represent an interesting source of data. It is considered that the UAM vehicles with vertical take-off and landing capabilities present similar characteristics to helicopters. Building on a previous report by the authors [1], a set of accident reports from several safety agencies worldwide has been analysed. The reports have been shortlisted according to the relevance of the scenario; selecting those which happened in an urban environment or close to urban areas. Relevant hazards have been identified and assessed by experts in order to understand how they could translate to UAM operations. Identified hazards could serve for risk assessment of future UAM operations as well as for the development of risk mitigation measures or policies.
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Sáenz De Tejada Millán J. Assessing UAM emergency procedures in existing or new heliports [B.S. thesis]. Universitat Politècnica de Catalunya; 2022. http://hdl.handle.net/2117/371230
Higgins CD, Adams MD, Réquia WJ, Mohamed M. Accessibility, air pollution, and congestion: Capturing spatial trade-offs from agglomeration in the property market. Land Use Policy. 2019;84:177-91. Available from: https://www.sciencedirect.com/science/article/pii/S0264837718311165. DOI: 10.1016/j.landusepol.2019.03.002.
Anderson ML. Subways, strikes, and slowdowns: The impacts of public transit on traffic congestion. American Economic Review. 2014;104(9):2763-96. ISSN: 0002-8282; DOI: 10.1257/aer.104.9.2763.
Bluenest. Landing on a brand new world, Blenest whitepaper; 2023. [Accessed: 2023-10-24]. https://www.bluenest.io/whitepaperv1.
Garrow LA, German BJ, Leonard CE. Urban air mobility: A comprehensive review and comparative analysis with autonomous and electric ground transportation for informing future research. Transportation Research Part C: Emerging Technologies. 2021;132:103377. ISSN: 0968-090X , 1879-2359; DOI: 10.1016/j.trc.2021.103377.
Fredericks W. Impact of operational requirements on intra-urban VTOL conceptual design. In: 16th AIAA Aviation Technology, Integration, and Operations Conference; 2016.
EUROCONTROL S. U-Space Concept of Operations (CONOPS), 4th Edition; 2023. [Accessed: 2023-10-23]. https://www.sesarju.eu/sites/default/files/documents/reports/U-space%20CONOPS%204th%20edition.pdf.
Balakrishnan K, et al. Blueprint for the sky. Paris, France: AIRBUS; 2018.
ICAO. DOC9859, Safety Management Manual; 2017. [Accessed: 2023-10-23]. https://www.icao.int.
Hobbs CP. Hidden history of transportation in Los Angeles. Arcadia Publishing; 2014. ISBN-13: 978-1540211415
Wallace B. Helicopter Airline History; 2022. [Accessed: 2023-12]. https:// helicopterairlinehistory.com/.
Correnti V, Capr`ı S, Ignaccolo M, Inturri G. The potential of rotorcraft for intercity passenger transport. Journal of Air Transport Management. 2007;13(2):53-60. DOI: 10.1016/j.jairtraman.2006.11.009
Dajani JS, Stortstrom RG, Warner DB. The potential for helicopter passenger service in major urban areas; NASA report, 1977.
Program HAS. Hearings before the United States Senate committee on commerce.; 1965.
Murray MJ. The evolving spatial form of cities in a globalising world economy: Johannesburg and Sao Paulo. vol. 5. HSRC Press; 2004. ISBN 13: 978-07969-2072-0
Romero S. Sao Paulo Journal; Rich Brazilians rise above rush-hour jams.; 2000. [Accessed: 2022-05]. https://www.nytimes.com/2000/02/15/world/sao-paulo-journal-rich-brazilians-rise-above-rush-hour-jams.html.
Phillips T. High above Sao Paulo’s choked streets, the rich cruise a new highway.; 2008. [Accessed: 2022-05]. https://www.theguardian.com/world/2008/jun/20/brazil.
Miracle O. Brazil’s Helicopter City.; 2021. Accessed: 2022-05. https:// foundandexplained.com/.
Burgueño S. Number of private heliports and helidecks as of 2021.; 2021. [Accessed: 2022-05]. https://www.statista.com/statistics/874975/brazil-number-private-heliports-helidecks/.
Brähler V, Flörke S. Above the rooftops of a megacity: The helicopteromania of São Paulo.; 2011. Accessed: 2022-05. https://lab.org.uk/sao-paulo-the-worlds-biggest-helicopter-fleet/.
de Jong HH. Guidelines for the identification of hazards: How to make unimaginable hazards imaginable? The Netherlands: NLR; 2004. NLR-CR-2004-094.
Ahlstrom V, et al. Human factors design guide update (report number DOT/FAA/CT-96/01): A revision to chapter 5–automation guidelines. William J. Hughes Technical Center (US); 2001.
Gardini KC, Chiavelli FH, Scarpari JRS, de Andrade D. Conceptual models of startle, surprise and automation bias analyzed through recent aviation accident reports. Journal of Aerospace Technology and Management. 2022;14:e3022. DOI: 10.1590/jatm.v14.1282
Xiang S, et al. Autonomous eVTOL: A summary of researches and challenges. Green Energy and Intelligent Transportation. 2024;3(1):100140. DOI: 10.1016/j.geits.2023.100140.
Rankin A, Woltjer R, Field J. Sensemaking following surprise in the cockpit—a re-framing problem. Cognition, Technology & Work. 2016;18:623-42. DOI: 10.1007/s10111-016-0390-2.
Landman A, et al. Dealing with unexpected events on the flight deck: A conceptual model of startle and surprise. Human factors. 2017;59(8):1161-72. DOI: 10.1177/0018720817723428.
Casner SM, Geven RW, Williams KT. The effectiveness of airline pilot training for abnormal events. Human factors. 2013;55(3):477-85. DOI: 10.1177/0018720812466893.
Gannous A. Interstices in the Certification of Safety Critical Avionics Software: Boeing 737-MAX MCAS Case Study. In: 2023 Congress in Computer Science, Computer Engineering, & Applied Computing (CSCE). IEEE; 2023. p. 2664-7. DOI: 10.1109/CSCE60160.2023.00425.
Wei H, et al. Autonomous navigation for eVTOL: Review and future perspectives. IEEE Transactions on Intelligent Vehicles. 2024. DOI: 10.1109/TIV.2024.3352613.
European Helicopter Safety Team. Automation and flight path management. Brussels: EASA, European Commission; 2015.
Straubinger A, et al. An overview of current research and developments in urban air mobility–Setting the scene for UAM introduction. Journal of Air Transport Management. 2020;87:101852. DOI: 10.1016/j.jairtraman.2020.101852.
Chen L, et al. Milestones in autonomous driving and intelligent vehicles: Survey of surveys. IEEE Transactions on Intelligent Vehicles. 2022;8(2):1046-56. DOI: 10.1109/TIV.2022.3223131.
Teng S, et al. Motion planning for autonomous driving: The state of the art and future perspectives. IEEE Transactions on Intelligent Vehicles. 2023;8(6):3692-711. DOI: 10.1109/TIV.2023.3274536.
Scarpari JRS, et al. Quantitative assessment of pilot-endured workloads during helicopter flying emergencies: An analysis of physiological parameters during an autorotation. Scientific Reports. 2021;11(1):17734. DOI: 10.1038/s41598-021-96773-y.
Steele-Perkins AP. Human factors in helicopters: Human factor problems of operating helicopters at sea. Proceedings of the Royal Society of Medicine. 1976;69(4):255-6. DOI: 10.1177/ 003591577606900405.
Cline PE. Human error analysis of helicopter emergency medical services (HEMS) accidents using the human factors analysis and classification system (HFACS). Journal of Aviation/Aerospace Education & Research. 2018;28(1):43- 62. DOI: 10.15394/jaaer.2018.1758.
EASA. Roadmap, artificial intelligence, A human-centric approach to AI in aviation. European Aviation Safety Agency; 2020.
EASA. Helicopter flight instructor manual; 2015. [Accessed: 2022-09]. https://www.easa.europa.eu/document-library/general-publications/ehest-helicopter-flight-instructor-manual.
Federal Aviation Authority, FAA. Helicopter flying handbook; 2022. [Accessed: 2022-09]. https://www.faa.gov/regulations_policies/handbooks_manuals/aviation/helicopter_flying_handbook.
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