Occupational Safety and Hygiene D (doctoral prog.)


This curricular unit aims at improving students’ competence and knowledge in the field of risk control and safety management.

course is oriented towards risk assessment within industrial contexts and/or working activities. It should assist in the design of prevention within a socio-economic perspective. It covers both the areas of occupational safety (associated with the worker) and operational safety (associated with each activity sector).

General characterization





Responsible teacher

Isabel Maria Nascimento Lopes Nunes, Maria Celeste Rodrigues Jacinto


Weekly - Available soon

Total - 28

Teaching language



Thesis Plan submitted.


International Standards: BS 8800 (2004), OHSAS 18001 (2007), ILO-OSH (2001), BS 5760-2 (1994)

Kirwan, Barry (1994). A Guide to Practical Human Reliability Assessment. Taylor & Francis. Lon

Kumamoto,H. and Henley, E.J.(1996). Probabilistic Risk Assessment and Management for Engineers and Scientists, 2nd Edition, IEEE Press,New  York.

Harms-Ringdahl, L. (2001, 2013). Safety Analysis – Principles and Practice in Occupational Safety.Taylor & Francis,Lon.

Kjellén, U. (2000). Prevention of accidents through experience feedback, Taylor & Francis. Hollnagel, E. (2004). Barriers and Accident Prevention, Ashgate Publishing Ltd,Aldershot,UK

Rausand, Marvin (2011). Risk Assessment: theory, methods and applications. Wiley. ISBN: 978-0-470-63764-7.

Aven, T. (2003). Foundations of Risk Analysis. Wiley.

Teaching method

The teaching approach varies and is adapted to the number of students registered. Typically it includes a combination of lectures, tutorial sessions, discussion of case studies, and self-study. The idea is to improve knowledge in matters that are relevant for the global aim of the doctoral research plan.

Evaluation method

The evaluation of the student’s learning is essentially based on a brief research work, possibly applied to a real working environment. All written reports shall, as far as possible, support the “literature review” and help establishing the “state of the art” of the future doctoral thesis. Furthermore, the work developed may be subject to discussion and oral presentation. Depending on the number of students registered, the work may be one single individual work, or several group assignments.

Subject matter

1. Safety Management Models. Industrial Safety vs. Occupational Safety and Health. Prevention of major accidents. Seveso and ATEX Directives. Safety Costs and Safety performance indicators.
2. Reliability and Failure. Probabilities, Boolean Algebra. Reliability Diagrams vs. Fault Tree techniques. Elements of Human Reliability Assessment (HRA).
3. Risk Assessment: qualitative and quantitative/probabilistic. Methods and Standards. Barriers to control risk. Prevention and protection barriers; the hierarchy of barriers. The ALARP principle in risk management. Cost-Benefit Analysis (CBA).
4. Accident investigation and analysis. Accident feedback in the cycle of organizational learning. Methods for accident investigation. Harmonized European systems for the classification of accidents at work and professional diseases.


Programs where the course is taught: