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    Michael Ulrey

    ABSTRACT
    Research Interests:
    There is tremendous potential growth in the demand for instrument approaches at Brazilian airports. Expansion of operations, especially simultaneous approaches, at many of these airports is complicated by terrain constraints. Highly... more
    There is tremendous potential growth in the demand for instrument approaches at Brazilian airports.  Expansion of operations, especially simultaneous approaches, at many of these airports is complicated by terrain constraints. Highly accurate, curved approach procedures to airports within busy and complex airspace are being introduced worldwide to improve operational efficiency and reduce noise and emissions.  These same procedures may also improve efficiency and capacity at Brazilian airports when used in new approach operations. This paper describes Required Navigation Performance-Established (RNPe) operations and suggests how RNPe and related concepts might enable new efficient instrument approach procedures in Brazil while addressing the demands of challenging terrain and significant demand growth. A quick review of possibilities on the three main international airports in the country is also presented.
    Submitted and accepted at SITRAER 2015
    Research Interests:
    ABSTRACT
    ABSTRACT
    In this paper we discuss mathematical models for the gate assignment and pack placement problems. Relative to objective functions to be described, heuristic methods of solution are discussed, one for gate assignment and two for pack... more
    In this paper we discuss mathematical models for the gate assignment and pack placement problems. Relative to objective functions to be described, heuristic methods of solution are discussed, one for gate assignment and two for pack placement. Performance figures for two actual boards are presented, together with a comparison to manual layout for one of the boards.
    Research Interests: