2017 Volume 11 Issue 2 Pages 100-107
Safety is a paramount requirement and risk-based safety management has been carried out in civil air transportation. One approach to improve safety is to provide regulations and standards for subsystems such as aircraft systems. For their implementation, safety assessments are required to determine whether the estimated risk is acceptable or not. Many trials of risk assessment such as collision risk evaluation have been carried out. In addition to such standards for subsystems, as a proactive strategy, safety management is now required for the states and service providers associated with the safe operation of aircraft. This paper overviews the transition of approaches for improving aviation safety and briefly describes the methods of risk assessment and the concept of safety management.