Problem resolution support for free flight operations

Kirk, Daniel; Heagy, Winfield S.; Yablonski, Michael J.

doi:10.1109/6979.928718

Cited by 17 publications

(5 citation statements)

References 1 publication

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“…In this Section, we describe a method devoted to organizing the traffic in the NAT based on windoptimal free routes (WOFR), which may become operationally acceptable thanks to more precise surveillance, reduction of the separation norms, and more efficient aircraft separation (including airborne self-separation) [32,33]. The first step of the proposed method involves creating new aircraft routes for each single flight separately, taking into account aircraft performance metrics and environmental conditions.…”

Section: Problem Formulation and Resolution Via Wind-optimal Freementioning

confidence: 99%

“…The problem of creating cost-optimal, wind-optimal, or climate-optimal routes has been addressed in many different ways in literature for decades [11,14,16,18,[33][34][35][36][37]. The results of these simulations reveal significant benefits from flying such routes, in terms of time and fuel savings [16,18], and emissions and contrails reductions [36,37].…”

Section: A Calculating Wofrmentioning

confidence: 99%

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Comparison Between Two Wind-Optimal Strategic Flight Plannings for North Atlantic Traffic

Dhief

Delahaye

Dougui

et al. 2019

Journal of Air Transportation

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The North Atlantic oceanic airspace is considered the most congested oceanic airspace in the world. For many years, air traffic control in this airspace has experienced difficulties due to the limited radar coverage. To support conflictfree flight progress, a structure of routes, called Organized Track System, is established in the North Atlantic airspace and very restrictive separation standards are applied. The development of the Automated Dependent Surveillance-Broadcast system provides an opportunity to improve the flight planning operations over the oceans by reducing separation norms. The aim of this study is to improve the traffic efficiency in the North Atlantic airspace by developing new approaches to organize the transatlantic traffic at the strategic level. The first considered approach proposes a new route structure, referred to as Wind-Optimal Track Network, to replace the Organized Track System, while the second one is based on Wind-Optimal Free Routes. The problem is modeled as an optimization problem and resolved further via Simulated Annealing combined with Sliding Window algorithm. Results of simulations performed on the real traffic data prove that about 76% of flights decreased their cruising times by more than half an hour when flying wind-optimal tracks rather than using their great circle routes from the departure to the destination. Furthermore, by comparing the two proposed methods we conclude that Wind-Optimal Free Routes implies lower cruising times, while the Wind-Optimal Track Network is much more robust under changing wind fields.

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Section: Problem Formulation and Resolution Via Wind-optimal Freementioning

confidence: 99%

Section: A Calculating Wofrmentioning

confidence: 99%

Comparison Between Two Wind-Optimal Strategic Flight Plannings for North Atlantic Traffic

Dhief

Delahaye

Dougui

et al. 2019

Journal of Air Transportation

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“…Controllers can generate a provisional aircraft plan manually (i.e., trial plan), or incorporate modifications based on automated advisories, such as those generated by EDA or the Problem Analysis Resolution and Ranking (PARR) tool. 23 This allows individual sectors to assess a traffic situation (nominally based on the active aircraft plans) and formulate their own preferences for change. Figure 3 illustrates a simple example based on two flights (A and B), in separate sectors (1 and 2), that will merge and transition through sector 4 to arrive at the meter fix.…”

Section: Aircraft Plans (Flight-plan Intent)mentioning

confidence: 99%

En route Descent Advisor concept for arrival metering

Green

Vivona²

2001

AIAA Guidance, Navigation, and Control Conference and Exhibit

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The En-route Descent Advisor (EDA) is a set of decision support tool (DST) capabilities for managing complex en route traffic subject to metering restrictions. The goal is to enable controller procedures to evolve from today's emphasis on sector management towards procedures more oriented towards trajectory management. EDA will help controllers transition traffic from a "Free Flight" (minimally restricted) en route environment into an efficiently organized arrival flow into terminal airspace. EDA assists controllers with high-density arrival metering by providing fuelefficient metering-conformance advisories that are integrated with conflict detection and resolution (CD&R) capabilities. Results of engineering analyses indicate that EDA advisories, based on accurate trajectory-prediction techniques, have the potential to reduce the rate of conflict-probe false alarms and missed alerts by 20% and improve the efficiency of transition airspace operations resulting in an annual nationwide benefit of $ 291 million.

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“…(Composite, multiple-dimension maneuvers are anticipated as a future enhancement, and are currently used for metering resolutions as described in Ref. 10).…”

Section: Parr Initiated For a Selected Aircraft Or Problemmentioning

confidence: 99%

Development and assessment of problem resolution capabilities for the en route sector controller

Kirk

Bowen

Heagy

et al. 2001

1st AIAA, Aircraft, Technology Integration, and Operations Forum

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This paper provides an overview of problem resolution capabilities being developed to assist en route air traffic controllers. This function is termed Problem Analysis, Resolution and Ranking (PARR). PARR is envisioned as an enhancement to the User Request Evaluation Tool (URET) Free Flight Phase 1 (FFP1) capability, and has been designated as Priority Research for the follow-on Free Flight Phase 2 (FFP2) effort. PARR is being developed as a series of incremental enhancements to URET, with the first step focusing on providing additional support to the Radar Associate (D) controller for the resolution of aircraft-to-aircraft and aircraft-to-airspace problems. Subsequent enhancements address the avoidance of severe weather areas, the implementation of Traffic Flow Management (TFM) flow initiatives, and the integration into a common en route Sector Team Computer-Human Interface (CHI). This paper provides an overview of the initial PARR capabilities and a summary of results from ongoing evaluations with active field controllers. An overview of the techniques being developed for the PARR functional performance and benefits assessment are given, along with initial results. Finally, concepts are described for the enhancement of URET and PARR to assist in the avoidance of severe weather areas and implementation of TFM flow initiatives.

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Problem resolution support for free flight operations

Cited by 17 publications

References 1 publication

Comparison Between Two Wind-Optimal Strategic Flight Plannings for North Atlantic Traffic

Comparison Between Two Wind-Optimal Strategic Flight Plannings for North Atlantic Traffic

En route Descent Advisor concept for arrival metering

Development and assessment of problem resolution capabilities for the en route sector controller

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