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https://www.nationalacademies.org/trb/events

Use of a Synthetic Vision Guidance System (SVGS) as a Category III (CAT III) Rollout Aid

A human-in-the-loop (HITL) simulation will be conducted to provide human factors data to aid in determining whether an Synthetic Vision Guidance System (SVGS) on a head-up display HUD, a head-down display (HDD), and/or both displays is an acceptable substitute for the visual references and flight guidance and control systems currently required to conduct manual Cagegory III (CAT III) Rollout (RO) operations. This research will examine the use of an SVGS throughout the entire CAT III flight operation (approach, landing, and RO), with a specific focus on the landing and RO, when an SVGS is used in lieu of a traditional fail-passive RO system, to determine if pilot performance, pilot workload, and crew coordination during landing and RO with an SVGS are comparable to existing levels during currently approved operations using a traditional fail-passive CAT III landing and RO system. While CAT III operations can also be conducted using other CAT III aircraft systems, such as fail-operational automatic landing and RO systems, or hybrid CAT III systems with fail-operational and fail-passive components, those systems and operational concepts are not within the scope of this research. Results from this research can inform safety risk management decisions and provide a basis to expand operational credit for SVGS technologies. The empirical data from this research can inform low visibility operation (LVO) policy and guidance decisions related to the use of an SVGS. These decisions may result in the authorization of lower CAT III minima for aircraft equipped with a fail-passive CAT III system at existing CAT III runways. This research may also expand LVO benefits to aircraft operators that have an SVGS but lack a fail-passive CAT III RO system.