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SYSTEMS ANALYSIS

01/

SUMMARY

MY ROLE

PhD researcher

OBJECTIVE

Identify and evaluate the research-practice gap that exists in how major accidents in complex socio-technical systems are analysed

APPROACH

  • Literature review

  • Evaluation of accident analysis methods

  • Interview safety practitioners

  • Comparison of three leading accident analysis methods

  • Training as an accident investigator

  • In-field use of an analysis method by practitioners

OUTCOMES

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02/

OBJECTIVE

The structure and behaviour of complex socio-technical systems, e.g. transport systems or healthcare systems, can sometimes result in major accidents. In order to enhance safety and prevent the recurrence of major accidents it is necessary to understand why they occur. This understanding is achieved with accident analysis.

 

The academic literature suggested that there was a difference in the theories, models and methods used by academics and industry-based accident investigators to analyse accidents. This potential research-practice gap could lead to outdated analysis and sub-optimal safety recommendations being made by accident investigators.

 

Given the implications of making badly-informed safety recommendations the research-practice gap needed to be identified, evaluated and ways of closing the gap needed to be devised. This was the aim of my PhD research.

03/

APPROACH

Firstly, an extensive literature review into systems theory, accident causation and analysis theory, models and methods was conducted. During this literature review, evidence of a research-gap was gathered.

 

The literature review provided the starting point for four studies which were conducted to explore the research topic. Following a mixed methods approach and with the findings of one study informing the next, the four studies included:

 

  • Study 1 - An evaluation of the accident analysis literature and techniques, in order to understand how their characteristics could influence the research-practice gap

  • Study 2 - Semi-structured interviews with 42 safety professionals from around the world to understand how the activities of practitioners may contribute to the gap and the various factors which affect the awareness, adoption and usage of the latest accident analysis theory and methods

  • Study 3 - Investigating the extent of the research-practice gap by determining whether the most common analysis method used practitioners embodies the latest theory. This was achieved by using the method and the two leading academic methods to analyse a major train crash and comparing the findings of the analyses

  • Study 4 - Gain an insight into the application of an academic analysis method by practitioners, in order to understand whether it met their needs. Six trainee accident investigators took part in an accident investigation simulation and subsequently analysed the data collected during the exercise with the academic method. The outputs of the participants’ analyses were studied along with the evaluation feedback they provided via a questionnaire and focus group

 

Finally, the findings of all four studies were analysed to understand the need for addressing the research-practice gap and recommendations for doing so, e.g. adaptation of academic methods and increased collaboration between the research and practice communities.

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04/

CHALLENGES

As the sole researcher on a large academic research project, I faced a number of challenges:

 

  • Reading significant amounts of literature to identify the topic that I would research; a requirement of completing a PhD is that original knowledge about a subject is created

  • Recruiting the 42 participants for Study 2 and transcribing the interview recordings – a labour of love!

  • Taking six weeks to train as an accident investigator at Cranfield University so that I could be trained as a practitioner as well as recruit participants for my final study – an amazing opportunity but one that put a time pressure on completing the rest of my research

05/

OUTCOMES

In addition to gaining my PhD, there were a number of specific positive outcomes:

 

  • I gained a deep understanding of the structure, behaviour and analysis of complex systems

  • I published several journal papers and presented at international human factors conferences, which helped increase my profile

  • I became a qualified accident investigator, a rarity for academic researchers and a great ice-breaker topic for meetings

© PETE UNDERWOOD 2024

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