For five decades complex socio-technical systems have been studied in an attempt to understand and prevent the occurrence of accidents. In this paper, the authors define a concept for a System Complexity metric, comprising the total of all direct interactions between the system elements and the tools …

Safety culture has been a topic of discussion in safety literature in the past three decades. Since its first mentioning after the Chernobyl accident much have been written about what fosters a positive safety culture within organizations. The Aviation Academy of the Amsterdam University of Applied Sciences …

This paper introduces the AVAC-SMS maturity metric and its accompanying tool which were developed in the frame of a research project with the aim to suggest new safety metrics, especially for Small-Medium Enterprises (SMEs). The metric is based on the ICAO Safety Management Manual, it was designed by …

The objective of the study described in this paper is to define safety metrics that are based on the utilisation of resources. The background of this research is a specific need of the aviation industry where small and medium-sized enterprises lack large amounts of safety-related data to measure and …

A literature review conducted as part of a research project named “Measuring Safety in Aviation – Developing Metrics for Safety Management Systems” revealed several challenges regarding the safety metrics used in aviation. One of the conclusions was that there is limited empirical evidence about the …

Following the completion of the 1st phase of the RAAK PRO project Aviation Safety Metrics, during which the researchers mapped the current practice in safety metrics and explored the validity of monotonic relationships of SMS, activity and demographic metrics with safety outcomes, this report presents …

Reason’s typology of safety culture (i.e. Just, Informative, Learning, Flexible and Reporting cultures) is widely used in the industry and academia. Through literature review we developed a framework including 36 markers that reflect the operationalization of Reason’s sub-cultures and general organizational …