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Required navigation performance

About: Required navigation performance is a research topic. Over the lifetime, 343 publications have been published within this topic receiving 3477 citations. The topic is also known as: RNP.


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Journal Article
TL;DR: Pilot acceptance of RNAV approaches as measured in this study is high, and perceived mental workload for both pilot flying and pilot not-flying is low, which can be explained in large part by the shift from double-checking height against distance in traditional non-precision approaches, to pattern matching (aircraft symbol/reference) duringRNAV approaches.
Abstract: Non-precision approaches (without vertical guidance) are known to expose aircraft to greater risk of CFIT (controlled flight into terrain). One solution consists of RNAV (area navigation) approaches with a computer-generated lateral and vertical path, which use the aircraft's flight management computer to fly an approach without any conventional ground-based radio facilities. We studied 22 pilots who flew 66 real RNAV approaches. Of special interest to us were the human factors and safety implications of using this new technology for an old problem. The high level of automation used for RNAV approaches brings with it a new potential for automation surprise (e.g. unexpected level-offs at go-around altitude) and extra monitoring requirements, especially for the pilot-not-flying. There is also an effect of low temperature that makes for shallower approaches as compared to ILS (instrument landing system). Pilot acceptance of RNAV approaches as measured in this study is high, and perceived mental workload for both pilot flying and pilot not-flying is low. This can be explained in large part by the shift from double-checking height against distance in traditional non-precision approaches, to pattern matching (aircraft symbol/reference) during RNAV approaches.

2 citations

Journal ArticleDOI
TL;DR: In this paper, the authors presented at GNNS 2000, the third European Symposium on Global Navigation Satellite System (GNNS), a low-cost means for aircraft to become equipped to fly area navigation (RNAV) operations.
Abstract: This and the following three papers were first presented at GNNS 2000, the third European Symposium on global navigation satellite systems held in Edinburgh, Scotland from 1st to 4th May 2000. GNSS, or more specifically, Satellite Based Augmentation System (SBAS), guidance provides the prospect of a low-cost means for aircraft to become equipped to fly area navigation (RNAV) operations. The implementation of such RNAV operations within UK airspace offers potential benefits to both the airline operators and the Air Traffic Service Providers (ATSPs).

2 citations

Journal ArticleDOI
Huabin Tang1
11 May 2020
TL;DR: The provision of tactical alerts to aid air traffic controllers in providing separation assurance in terminal airspace is hindered by the complexity of the airspace, its operations, and flight operations.
Abstract: The provision of tactical alerts to aid air traffic controllers in providing separation assurance in terminal airspace is hindered by the complexity of the airspace, its operations, and flight proc...

2 citations

Journal ArticleDOI
01 Oct 1983
TL;DR: In this paper, a comparative assessment of navigation systems in terms of their ability to satisfy current and projected civil aviation requirements is presented, and the technical performance capability of each navigation system is compared with both existing and projected system-use accuracy requirements.
Abstract: This paper presents comparative assessments of navigation systems in terms of their ability to satisfy current and projected civil aviation requirements. Emphasis is placed on U.S. operations. The navigation systems considered as candidates, either separately or in combination, for meeting post-1995 requirements are Loran-C, Omega/ VLF, GPS, VOR, DME, Doppler, and INS. Each navigation system is characterized by a brief description of the facilities used and the techniques employed in providing navigation capability. The technical performance capability of each navigation system is compared with both existing and projected system-use accuracy requirements. Of the two error components that determine system-use accuracy, flight technical error (FTE) and equipment error, it is shown that FTE is the limiting factor in the improvement of system-use accuracy. Each system is also evaluated to identify the limitations imposed by signal-coverage considerations. The paper concludes with the recommendation to maintain a navigation system mix of VOR, DME, Loran-C, Omega/VLF, and INS as an effective means of satisfying both current and post-1995 civil aviation requirements. Doppler is not included, because of its poor accuracy. It is considered premature at this time to make any commitments regarding civil implementation of the proposed NAVSTAR Global Positioning System (GPS).

2 citations

Proceedings ArticleDOI
24 Dec 2012
TL;DR: Why human factors research is needed is explained and examples of research issues are provided to help promote easier and more reliable use of PBN instrument procedures are provided.
Abstract: Area navigation (RNAV) and required navigation performance (RNP) are key components of performance-based navigation (PBN) Instrument procedures that use RNAV and RNP can have more flexible and precise paths than conventional routes that are defined using ground-based navigation aids As a result, RNAV and RNP routes can enhance operational safety, efficiency, and access At the United States Department of Transportation Volpe Center, we are identifying and documenting human factors issues associated with implementing PBN instrument procedures for the Federal Aviation Administration (FAA) This effort supports the FAA's transition to the Next Generation Air Transportation System (NextGen) by providing recommendations to promote easier and more reliable use of PBN instrument procedures In this paper, we explain why human factors research is needed and provide examples of research issues For example, new procedures may result in increased visual complexity of charts, which in turn could increase pilot workload and the potential for error We are also conducting analyses and experiments to understand and improve the usability of aeronautical charts for PBN instrument procedures Our work in this area is summarized in this paper More information can be found at wwwvolpedotgov/coi/hfrsa/ahf/ip/libraryhtml The website has links to our latest research products It also supports other human factors research teams by listing and summarizing publicly available reports on related topics

2 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20214
20209
20193
201815
201720
201615