Brendan P. Hogan

Office: Olsson Trailer, Room 106, UVA Map G, just behind #38

Mailing Address:
University of Virginia
Department of Systems and Information Engineering
P.O. Box 400747
151 Engineer's Way
Charlottesville, VA 22904

Phone:
571-643-6299 (cell)
434-243-2280 (office)
434-982-2972 (fax)

Email: bhogan@virginia.edu

   

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Education

PhD Candidate, Systems and Information Engineering, University of Virginia, Passed comprehensive exams October 2007
Advisor, Dr. Ellen Bass

M.S. Computational Operations Research, College of William and Mary, May 2002

B.S. Mathematics and Physics, St. Lawrence University, May 2000

Curriculum Vitae [html] [pdf]

Research Interests

Airspace congestion management through dynamic pricing and user incentives

I am interested in exploring alternative methods of capacity allocation for the handling of demand imbalances in the National Airspace System. In particular my focus is on the en-route environment and taking advantage of the inherent preferences users have in their decisions with respect to the routes in the airspace that they access and the times, altitudes, and equipment specific to their use of routes. The basic idea of congestion pricing is interesting, that users are charged in proportion to the cost externalities of the delay produced by their additional use of the system. The application of this theory may be less feasible in the en-route airspace domain, but the concept of dynamically charging users for the ways in which they access the system could be very effective. Specifically, a system of providing users incentives to behave in ways that are beneficial to the overall system good could be an effective technique for demand management. For example, the current tax structure that is linked to passengers transported and the fares they paid is a missed opportunity to incentivize good behavior since transporting the same number of passengers on smaller, more frequent aircraft generates more demand on the system but doesn't cost users any more to do it. Consider the alternative in which actions that increase the use of heavily demanded resources cost users proportionally more for that access, and incentives are provided to users who offload from those busy routes and times. This new line of thinking about traffic flow management is the motivation for my research.

As a first step along these lines I plan to explore the relevant datasets to identify patterns of activity that reveal users' underlying preference structures. For example, in the current implementation of ground delay programs carriers are free to swap their internal flights to best take advantage of the slots they are allocated when a particular resource is constrained. The actions that users take within this scope can reveal their business priorities with respect to which markets or which aircraft in their fleet are most important to be on time. Observing the actions that are taken along these lines can reveal the preference structure of different types of users. Once we have some insight into this information, we will be in a better position to recommend capacity allocation mechanisms that take advantage of those preferences, which is the ultimate goal of this work.

Some documents I have put together towards that end:

For more background information on the FAA's funding issues see:

Activity patterns in the National Airspace System

A multivariate statistics project on air traffic activity by Air Route Traffic Control Center (ARTCC) by day of week, completed May 2006


Maintained by bph4r@virginia.edu
Last Modified: Thursday, 27-Mar-2008 13:16:54 EDT