Analysis of Potential Benefits
of Arrival-Departure Procedures Proposed for ORD
August 2005
Dr. Ralf H. Mayer, The MITRE Corporation
Howard Swancy, Federal Aviation Administration
ABSTRACT
On June 13, 2004, the Federal Aviation Administration (FAA) implemented
a new procedure at Chicago O'Hare International Airport (ORD)
that authorizes arrival-departure operations on intersecting runways
14R/27L with modified separation requirements at the runway intersection.
The procedure is expected to recoup reductions in arrival and departure
capacities associated with operations on these runways that resulted
from discontinuing Land-And-Hold-Short Operations (LAHSO) in 2000 and
reduce arrival and departure delays at ORD when the airport is operated
in Plan B configuration. This configuration is used about 10 percent
of the time. This paper describes the background analysis of relevant
operational metrics conducted to compare and evaluate candidate procedures
for their relative benefits and to help select the most promising ones.
It describes the model developed to quantify and visualize the airport's
operations, the methodology used to validate model performance with
ARTS data, and the Monte Carlo approach taken for comparing and evaluating
capacity benefits of four candidate arrival-departure procedures.
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