There are many facts that contribute to occurrence of aeronautical accidents by runway excursion; among them, the Runway End Safety Area (RESA) smaller than specified by RBAC. However, in some airports, the expansion of this area is impractical, mainly, due the obstacles close to the runway, such as civil constructions and water. In 1990, the Engineered Material Arresting System (EMAS) was putforth to stop the aircraft completely, in case of runway excursion, mitigating the damage generated to passengers and to the aircraft itself. The EMAS is a system that increases the security level of an airport, without the need of expansion of runway or RESA and, therefore, is highly indicated to airports where the expansion of RESA is limited, for example, Santos Dumont Airport (SBRJ). Therefore, the general objective of this work is to study the EMAS efficiency, doing risk analysis in different scenarios, through the ACRP Report 50, with support of the software RSARA2, as methodology to implementation of the system at SBRJ. The results obtained, in this present work, were satisfying, since, considering the system implementation for runway exit speeds 50, 60 and 70 knots, there was a decrease of 61.56, 64.86 and 67.06%, respectively, in the probability of occurrence, when compared to the current situation of airport. Analyzing the results obtained, it is possible to note that technically and economically, the EMAS 50 implementation is the most viable option to the SBRJ, whereas the present increase in the security level, requires a shorter length of EMAS.
