Dynamic Arrival Routes: A Trajectory-Based Weather Avoidance System for Merging Arrivals and Metering

Gong, Chester; McNally, Dave

doi:10.2514/6.2015-3394

Cited by 16 publications

(8 citation statements)

References 4 publications

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“…NASA has extensive research experience developing and evaluating tools that continuously search for opportunities to improve the efficiency of trajectories around weather, including the airborne tool Traffic Aware Strategic Aircrew Requests (TASAR) 14 , the FOC tool Dynamic Weather Routes (DWR) 15 , and the ANSP tool Dynamic Arrival Routes (DAR) 16 . From experience gained from operational assessments of DWR, it is clear that predictions made more than two hours out of airways and arrival routes that will be impacted by severe weather at the time a flight would use them are highly uncertain; and there are noticeable uncertainties even 30 minutes out.…”

Section: The Effects Of Weather On the Nasmentioning

confidence: 99%

NextGen Far-Term Concept Exploration for Integrated Gate-to-Gate Trajectory-Based Operations

Johnson¹,

Barmore

2016

16th AIAA Aviation Technology, Integration, and Operations Conference

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NASA is currently conducting concept exploration studies toward the definition of a far-term, gate-to-gate concept for Trajectory-Based Operations (TBO). This paper presents a basic architectural framework for the far-term concept and discusses some observations about implementation of trajectory-based operations in the National Airspace System. Within the concept, operators and service providers collaboratively negotiate aircraft trajectories, providing agile, optimized, aircraft-specific routing to meet service provider gate-to-gate flow-management constraints and increasing capacity by smoothly and effectively combining flight-deck-based and ground-based metering, merging, and spacing in a mixed-equipage environment. The far-term TBO concept is intended to influence the direction of mid-term TBO research and to inform the definition of stable requirements and standards for TBO communications infrastructure and user equipage.

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Section: The Effects Of Weather On the Nasmentioning

confidence: 99%

NextGen Far-Term Concept Exploration for Integrated Gate-to-Gate Trajectory-Based Operations

Johnson¹,

Barmore

2016

16th AIAA Aviation Technology, Integration, and Operations Conference

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“…The combinatorial nature of routing problems is manifest in most of these works through the use of discrete optimization models. An automated system called Dynamic Arrival Routes, designed for re-routing arrival flights around adverse weather regions that occur before the flight's freeze horizon [17], is described in [18]. This paper focuses on the problem of re-routing air traffic around strong convective weather affecting large volumes of airspace adversely.…”

Section: Introductionmentioning

confidence: 99%

Risk-Hedged Approach for Re-routing Air Traffic Under Weather Uncertainty

Sadovsky

Bilimoria

2016

16th AIAA Aviation Technology, Integration, and Operations Conference

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This paper explores a new risk-hedged approach for re-routing air traffic around forecast convective weather. In this work, flying through a more likely weather instantiation is considered to pose a higher level of risk. Current operational practice strategically plans re-routes to avoid only the most likely (highest risk) weather instantiation, and then tactically makes any necessary adjustments as the weather evolves. The risk-hedged approach strategically plans re-routes by minimizing the risk-adjusted path length, incorporating multiple possible weather instantiations with associated likelihoods (risks). The resulting model is transparent and is readily analyzed for realism and treated with well-understood shortest-path algorithms. Risk-hedged re-routes are computed for some example weather instantiations. The main result is that in some scenarios, relative to an operational-practice proxy solution, the risk-hedged solution provides the benefits of lower risk as well as shorter path length. In other scenarios, the benefits of the risk-hedged solution are ambiguous, because the solution is characterized by a tradeoff between risk and path length. The risk-hedged solution can be executed in those scenarios where it provides a clear benefit over current operational practice.

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“…MACS is a distributed simulation system with multiple pseudo-pilot and air traffic controller stations that is frequently used for National Aeronautics and Space Administration (NASA)'s evaluations of air traffic management concepts. 1 Automated scenario generation has been used for creating MACS scenarios for Dynamic Routes for Arrivals in Weather (DRAW) 2 and Integrated Demand Management 3 HITL experiments. It has also been used for creating Airspace Target Generator (ATG) scenarios, used in realistic airport surface traffic simulation, for the Airspace Technology Demonstration (ATD-2) 4 subproject.…”

Section: Introductionmentioning

confidence: 99%

Automated Scenario Generation for Meeting Human-in-the-Loop Simulation Requirements

Chatterji¹,

Zheng²

2019

AIAA Scitech 2019 Forum

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A two-step automated Multi-Aircraft Control System traffic scenario generation process for Human-in-the-Loop evaluations of air traffic management concepts is described. The first step of the two-step process employs the scenario generation capability currently available in NASA's Air Traffic Management Testbed. The second step refines the scenario by filtering flights from the traffic scenario based on route length, cruise speed, cruise altitude, entry time and the desired ratio of internal to external flights. A solution for achieving the desired ratio of internal to external flights, where internal flights are shorter flights and external flights are longer flights based on a distance threshold, is described. Finally, schedulers are described for shaping the hourly arrival traffic count as a function of time in response to airport capacity constraint or for increasing the traffic demand with respect to the available arrival capacity. Results generated for arrival traffic to the four major airports in the New York Metroplex on a busy day using the two-step procedure are discussed. These results show that traffic scenarios for Multi-Aircraft Control System that meet the Human-in-the-Loop and fast-time simulation requirements can be created automatically following the procedures described in the paper. The automated process will improve the accuracy and efficiency by eliminating the tedious manual process for scenario generation.

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Dynamic Arrival Routes: A Trajectory-Based Weather Avoidance System for Merging Arrivals and Metering

Cited by 16 publications

References 4 publications

NextGen Far-Term Concept Exploration for Integrated Gate-to-Gate Trajectory-Based Operations

NextGen Far-Term Concept Exploration for Integrated Gate-to-Gate Trajectory-Based Operations

Risk-Hedged Approach for Re-routing Air Traffic Under Weather Uncertainty

Automated Scenario Generation for Meeting Human-in-the-Loop Simulation Requirements

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