The paper gives a summary of approaches to describing and modelling safety characteristics, including safety functions and barriers. In three examples, the safety function concept has been used to describe how actual safety systems worked. The examples are an incident investigation, a safety analysis of a part of a pharmaceutical plant, and safety rules in the railway industry. Advantages and d...

Due to increasing functionality associated with rising complexity of aircraft cabin systems which are used by cabin crew, passengers, maintenance staff and other stakeholders, security engineering has to become an integral part of the system engineering process in aviation industry. This paper deals with a security engineering process approach for the development of complex aircraft systems, wh...

Objectives: Behavioral-based safety is a term used to describe the prevention of accidents, injuries and loss in the workplace. An effective behavior-based safety program relies on engaging employees to understand how unsafe behaviors lead to injuries and how to eliminate them from the workplace. This paper examines behavior-based safety program in a massive construction site. Methods: For t...

performance measure approach (pma) is a method for evaluating the probabilistic constraints in reliability-based design optimization of structures. the advanced mean-value (amv) method is suitable for pma, simply and efficiently. the iterative amv scheme could be yielded to unstable solutions such as periodic-oscillation and chaos for highly nonlinear performance functions. in the present paper...

Background: The effectiveness and adequacy of occupational health and safety management system should be monitored and evaluated at organization level on a regular basis. Safety audit has a clear role in the development of organizations safety management systems. Internal safety audit is a method to appraise to the management the current status of occupational health and safety at workplace. Se...

background: there can be little doubt that the construction is the most hazardous industry in the worldwide. this study was designed to modeling the factors affecting unsafe behavior from the perspective of safety supervisors. methods: the qualitative research was conducted to extract a conceptual model. a structural model was then developed based on a questionnaire survey (n=266) by two stage ...