Institute for Systems Research

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Author: search.filters.author.Hoffman, Robert L.Subject: search.filters.subject.performance analysis

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    Measuring Ground Delay Program Effectiveness Using the Rate Control Index
    (2000) Ball, Michael O.; Hoffman, Robert L.; Ball, Michael O.; ISR; NEXTOR
    The objective of Air Traffic Flow Management is to maintain safe and efficient use of airspace and airports by regulating the flow of traffic. In this paper, we introduce a single-valued metric for post-operatively rating the performance of achieved traffic flow against targeted traffic flow. We provide variations on the metric, one of which factors out stochastic conditions upon which a plan is formulated, and show how these improve on current traffic control analysis techniques. The core of the metric is intuitive and simple, yet leads to an interesting optimization problem that can be efficiently solved via dynamic programming. Numerical results of the metric are given as well as a sample of the type of analysis that should follow a low rating by the metric. Although this metric was originally developed to rate the performance of Ground Delay Programs, it is equally applicable to any setting in which the flow of discrete objects such as vehicles is controlled and later evaluated.
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    Collaborative Decision Making in Air Traffic Management: Current and Future Research Directions
    (2000) Ball, Michael O.; Hoffman, Robert L.; Chen, Chien-Yu; Vossen, Thomas; ISR; NEXTOR
    Collaborative Decision Making (CDM) embodies a new philosophy for managing air traffic. The initial implementation of CDM in the US has been aimed at Ground Delay Program Enhancements (GDP-E). However, the underlying concepts of CDM have the potential for much broader applicability.

    This paper reviews on-going and proposed CDM research streams. The topic areas discussed include: ground delay program enhancements; collaborative routing; performance monitoring and analysis; collaborative resource allocation mechanisms; game theory models for analyzing CDM procedures and information exchange; collaborative information collection and distribution.