Modelling integral risk assessment (MOIRA): Experiments on the Dutch railway departure process

Katja Schuitemaker, G. Maarten Bonnema

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    Abstract

    Risk assessment is mostly document-based at this moment. In this paper, we present a study to compare two ways of integral risk assessment of the Dutch railway departure process. First, a document-based risk assessment about the departure process executed by NS in 2011. Second, a risk assessment about this same departure process with modelling of integral risk assessment (MOIRA). The aim is to measure and compare four key performance indicators: (1) validity of the risk assessment elements, (2) consistency of the data processing, (3) clarity of the boundaries, and (4) comprehension of the overall safety architecture. For this purpose, we have designed experiments that included direct, detailed observations in which we controlled the execution of performing risk assessment tasks. In total, twelve test sessions were performed, with in total 42 participants. Data was collected through the month of January 2019. In the end, we compare the two, to see if there are any objective differences, and also, we validate their usability by surveying the findings of the participants, resulting in a fifth KPI.

    Original languageEnglish
    Title of host publication2019 14th Annual Conference System of Systems Engineering, SoSE 2019
    PublisherIEEE
    Pages272-277
    Number of pages6
    ISBN (Electronic)978-1-7281-0457-7 , 978-1-7281-0456-0
    ISBN (Print)978-1-7281-0458-4
    DOIs
    Publication statusPublished - 4 Jul 2019
    Event14th Annual System of Systems Engineering Conference, SoSE 2019 - Anchorage, United States
    Duration: 19 May 201922 May 2019
    Conference number: 14
    http://sosengineering.org/2019/

    Conference

    Conference14th Annual System of Systems Engineering Conference, SoSE 2019
    Abbreviated titleSoSE 2019
    CountryUnited States
    CityAnchorage
    Period19/05/1922/05/19
    Internet address

    Keywords

    • Architecture
    • Model-based
    • Railway
    • Risk analysis
    • Risk evaluation
    • Safety

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