United States Department of Transportation
i
Engineered Material Arresting System Sign Simulation—Expanded Data Analysis
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2023-11-01
[PDF-2.70 MB]
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Edition:Final Report
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Abstract:Engineered Material Arresting System (EMAS) is a specially designed surface that is installed at the end of certain runways that do not have sufficient surrounding space to support the standard runway safety area (RSA). EMAS is designed to reduce the extent and associated risks of a runway excursion by arresting an aircraft that experiences an overrun excursion during a landing or an aborted takeoff. Of the 121 EMAS beds installed at 69 airports in the United States, there have been 20 incidents where EMAS has safely stopped overrunning aircraft, carrying 428 crew and passengers. Despite its proven effectiveness, there is evidence that pilots occasionally avoid EMAS beds during an overrun excursion. Previous research by the Federal Aviation Administration (FAA) Airport Technology Research and Development Branch’s Safety Section (ATR) identified conceptual EMAS signage that would inform a test subject about the presence of EMAS during normal operations and an overrun excursion. Current ATR research has two objectives: gain test subject input about the location of EMAS signs that best inform a pilot about the presence of EMAS on a runway and evaluate the effectiveness of these signs during an overrun excursion. The use of flight simulators at FedEx and FlightSafety International (FSI) were chosen as the most effective way to meet these objectives. Flight simulation exercises with 132 test subjects were completed by September 2022.
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