Modeling Approach for Resilience Engineering of the Future ATM System

The Air Traffic Management system is rapidly growing in complexity. In order to limit potential performance reductions of the system, several international research programs were started to develop new operational concepts in order to reorganize and redesign the air traffic management system in a more efficient way. An evaluation of the performance of these new operational concepts may be stated in terms of system resilience. Resilience is an approach to the analysis of the capabilities and the behavior of complex systems under nonnominal conditions. The purpose of this paper is to present the approach proposed in the SESAR JU E2.21 SAFECORAM project for the definition of a quantitative methodology for resilience evaluation of the future ATM system based on the development of a concept for task re-allocation among remaining available resources (humans and/or machines) in offnominal conditions.