Airports

Safe At Home? An Experiment in Domestic Airline Security

Barnett, Arnold
Shumsky, Robert
Mark Hansen
Odoni, Amedeo
Gosling, Geoffrey
2001

The paper describes a scientific experiment about a contentious policy issue: What costs and disruptions might arise if U.S. domestic airlines adopted positive passenger bag-match (PPBM), an antiterrorist measure aimed at preventing baggage unaccompanied by passengers from traveling in aircraft luggage compartments? The heart of the effort was a two-week live test of domestic bag-match that involved 11 airlines, 8,000 flights, and nearly 750,000 passengers. Working with the Federal Aviation Administration, the authors played a major role in designing, monitoring, and analyzing the live...

Assessing URET Benefits for Airspace Users: A Quasi-Experimental Approach

Bolic, Tatjana
Mark Hansen
2002

Air traffic control organizations around the world are trying to develop automation tools to help controllers manage increasing workload and to enable user preferred routes. This paper focuses on such a tool: User Request Evaluation Tool (URET), which is a decision-support tool for en-route controllers. URET is a prototype of an automated conflict probe. Based on flight plans and actual radar tracks, the URET system models aircraft trajectories and predicts possible conflicts. It also enables controllers to check clearances for conflicts prior to their issuance. This tool is intended as a...

Effect of T-TMA on Capacity and Delay at Los Angeles International Airport

Mark Hansen
Mukherjee, Avijit
Knorr, Dave
Howell, Dan
2002
Free Flight Phase 1 (FFP1) is an FAA program for improving the performance of the National Airspace System (NAS) through the deployment of advanced technologies for air traffic management. In addition to the deployment activities, FFP1 includes a significant evaluation component, which faces a significant hurdle. A plethora of factors—weather, demand, enhancements to the NAS infrastructure not related to FFP1, facility outages, and so on—may also cause changes in NAS performance. It is necessary to normalize for these factors in order to determine the effect of FFP1. Normalization procedures...

Influence of Capacity Constraints on Airline Fleet Mix

Mark Hansen
Gosling, Geoffrey D.
Margulici, Jean-David
Wei, Wen-Bin
2001

This report documents the findings of research sponsored by the Los Angeles World Airports to examine the influence of airport capacity constraints on airline fleet mix and to explore the potential effects of policy options to influence airlines to use larger aircraft types and thereby accommodate growth in passenger or cargo demand without a corresponding increase in the number of aircraft operations. This issue is of growing importance at many major airports in the United States and indeed around the world, as a steadily increasing demand for air transportation has resulted in volumes of...

Analysis of De-peaking Strategies Implemented by American Airlines: Causes and Effects

Zhang, Yu
Menendez, Monica
Mark Hansen
2003

The airline industry in the United States has been one of the hardest-hit (economic victims of the terrorist attacks on September 11, 2001. In an effort to reduce operating cost to better adapt to the decreasing demand, American Airlines (AA) has introduced de-peaking strategies at two of its major hubs: Chicago O’Hare and Dallas/Fort Worth International Airports. In this paper, American Airlines’ market performance before de-peaking implementation is investigated. The results suggest that the differences between the market performance of the whole company and those services going through...

Air Transportation Network Flows

Hsiao, Chieh-Yu
Mark Hansen
2005
Passenger flow is an important planning factor in an air transportation system. However, forecasting segment (link) and airport flows becomes more complicated in a hub-and-spoke system since segment flows are the aggregations of route flows, and the number of routes increases with hubbing activities. This research develops an equilibrium model considering certain important characteristics of an air transportation system such as distance, airport delay, airline competition, and networks to predict segment and airport passenger flows from the viewpoint of the whole system. The major features of...

Throughput Effect of Time-Based Metering at Los Angeles International Airport

Mark Hansen
Peterman, Dale
2004
The throughput effect of Traffic Management Advisor (TMA) metering for Los Angeles International Airport was estimated with censored regression. Under TMA metering, traffic management coordinators receive advisories about when individual flights should be scheduled to enter the terminal area, accounting for the unimpeded time and constraints related to separation requirements and capacity constraints. Tests of TMA metering at Los Angeles began in spring 2002; mandatory use during the morning peak period started in November 2002. This analysis focuses on observed counts during periods when...

Market-Based Alternatives for Managing Congestion at New York’s LaGuardia Airport

O. Ball, Michael
Ausubel, Lawrence M.
Berardino, Frank
Cramton, Peter
Donohue, George
Mark Hansen
Hoffman, Karla
2005

In the paper, we summarize the results of a project that was motivated by the expiration of the “High Density Rule,” which defined the slot controls employed at New York’s LaGuardia Airport for more than 30 years. The scope of the project included the analysis of several administrative measures, congestion pricing options and slot auctions. The research output includes a congestion pricing procedure and also the specification of a slot auction mechanism. The research results are based in part on two strategic simulations. These were multi-day events that included the participation of...

Safety of Efficiency: Link Between Operational Performance and Operational Errors in the National Airspace System

Mark Hansen
Zhang, Yu
2004
Safety and efficiency are two of the most important goals of the national airspace system (NAS). However, these goals are typically viewed as competing or independent, rather than complementary. The complementary aspect of safety and efficiency is illustrated from the point of view of human factors and ergonomics. Statistical methods were used to analyze safety and efficiency performance measurements, operational errors, and daily flight time index (DFTI). Factors related to weather and complexity were found to be more likely on days with poor operational performance as measured by DFTI. The...

Automation Adoption and Adaptation

Bolic, Tatjana
Mark Hansen
2005

The objective of this paper is to present the findings and a set of hypotheses that emerged in the initial steps of an assessment study of air traffic controllers’ adoption and adaptation of new technologies, with the user request evaluation tool (URET) as a case study. The hypotheses are the basis for further study on this topic. The importance of this investigation is to provide a better understanding of changes brought about by the use of decision support tools by sector controller teams. The main purpose of URET is to support sector team strategic planning and allow controllers to...