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Pilot-In-The-Loop Evaluation of Cockpit Assistance for Autonomous Operations
Technical Paper
2000-01-5576
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The Full Aircraft Separation Transfer (FAST) study of the Freer-Flight Project looks at the “autonomous aircraft” mode in the context of free flight airspace by 2015. This can be allied to free route operations and support the introduction of designated Free Flight Airspace as proposed in the EUROCONTROL ATM2000+ Strategy. While these operations are likely to be confined to low traffic density airspace, they will further enhance flight efficiency and flexibility.
New rules are needed to address the issues of communication, coordination, flight rules, separation principles and priorities among flights. For that purpose, Extended Flight Rules (EFR) procedures have been developed: encounters are treated pair-wise and a priority scheme determines which aircraft has the right of way. In addition, an Airborne Separation Assurance System (ASAS) prototype providing the pilot with the necessary assistance for conflict detection and resolution has been developed. The conflict detection provides a graphical representation of actual and potential zones of conflict, allowing straightforward conflict resolution through graphical trajectory editing. In addition, conflict resolution can be performed through system generated resolution trajectories. It is assumed that full intent information (Trajectory Change Points (TCP)) is transmitted between aircraft through Automatic Dependant Surveillance - Broadcast (ADS-B). Full Flight Management System (FMS) equipment is required.
The experiment described in this paper aimed at gathering more data on autonomous operations from an aircraft perspective, specifically on the acceptability of the concept by pilots, through the evaluation of a prototype interface and of the corresponding procedures. A total of 18 pilots participated in the experiments run in a generic cockpit environment.
Pilots were observed defining their own cockpit procedures to handle separation assurance in the absence of ATC, in particular to cope with non-nominal situations. They found the two levels of automation support for separation assurance very efficient and intuitive. Furthermore, they subjectively assessed that the additional workload induced by the separation task was very low, though some concerns were raised on the possible necessity of an ATC fallback in non-nominal cases.
The zones on the display exclusively provided information on the interaction with other aircraft. The pilots expressed a need to integrate these zones on the same display with weather information, terrain and restricted airspace boundaries. A number of other enhancements to the tools were suggested by the pilots, warranting more experiments for a better understanding of the feasibility of autonomous operations.
Citation
Hoffman, E., Perret, S., and Zeghal, K., "Pilot-In-The-Loop Evaluation of Cockpit Assistance for Autonomous Operations," SAE Technical Paper 2000-01-5576, 2000, https://doi.org/10.4271/2000-01-5576.Also In
References
- Bonnemaison B. Casaux F. Miquel T. “Operational assessment of co-operative ASAS applications” USA/Europe ATM R&D Seminar Orlando 1998
- DAG-TM Concept Definition for Distributed Air/GroundTraffic Management (DAG-TM) Version 1.0 September 1999
- Duong V. Hoffman E. “Conflict resolution advisory service in autonomous aircraft operations” IEEE/AIAA Digital Avionics Systems Conference 1997
- Duong V. Hoffman E. Nicolaon J.P. Floc'hic L. Bossu A. “Extended Flight Rules to Apply to the Resolution of Encounters in Autonomous Airborne Separation” EUROCONTROL Experimental Center September 1996
- EMERALD (European Community funded project) “Research and technical development plan for ASAS concept development” WP5.5 report 3.0 March 1998
- EUROCONTROL ATM Strategy for 2000+ January 2000
- EUROCONTROL EATMS Operational Concept Document January 1999
- EUROCONTROL Operational Concept for Airbone Situational Awareness (AIRSAW) 1 0.5 September 1999
- Grand Perret S. “FAST: 1999 pilot in the loop evaluation” EUROCONTROL Experimental Centre Note 13/00 July 2000
- Hoffman E. Zeghal K. Cloerec A. Grimaud I. Nicolaon J. -P. “Operational concepts for limited delegation of separation assurance to the cockpit” AIAA Guidance, Navigation and Control Conference Portland 1999
- Irvine R.J. “The GEARS conflict resolution algorithm” AIAA Guidance Navigation and Control Conference Boston August 1988
- Johnson W. Battiste V. Holland S. “A Cockpit Display Designed to Enable Limited Flight Deck Separation Responsibility” SAE/AIAA World Aviation Congress San Francisco October 1999
- MAICA Report to the EU. ANNEX A Autonomous Aircraft Project AI-96-SC-105 April 1998
- RTCA SC-186 Minimum Aviation System Performance Standards for Automatic Dependent Surveillance Broadcast (ADS-B), DO-242
- RTCA SC-186 Guidance for Initial Implementation of Cockpit Display of Traffic Information, DO-243 1998
- Ruigrok R. Van Gent R. Hoekstra J. “The transition towards free flight: a human factors evaluation of mixed equipage, integrated air-ground, free flight ATM scenarios” SAE/AIAA World Aviation Congress San Francisco 1999
- Zeitlin D. Hammer J. Cieplak J. Olmos B. O. “Achieving early CDTI capability with ADS-B” USA/Europe ATM R&D Seminar Orlando 1998