Abstract
In order to carry out a study to establish an operational concept of future trajectory-based operation (TBO), we need to consider an appropriate airspace safety index to describe hot spots using a relatively simple methodology without high computational burden. As the first step to identifying an appropriate method, we review several methods for safety indices and attempt to compare the advantages of each. This paper introduces some results of this survey and indicates its applicability to our TBO concept study and current topics. This paper first describes the TBO concept in contrast with the current airspace-based operation in air traffic management. Then, currently used safety indices and the concepts of the Propensity and Resilience used in the INTEGRA project are explained briefly. Finally, some considerations on the safety metrics are made and a new approach using a simple model is proposed.
