How Useful are Carboard Mock-Ups: the Use of Different Levels of Simulation Fidelity in Assessing Signallers' Workload

Andrew Marshall

Research output: Contribution to conferencePaperpeer-review

Abstract

Two techniques were utilised: the Bedford Scale and the NASA TLX. Assessments were made with two levels of fidelity. The first used a busy 15 minute scenario with seven different failure conditions using paper based layouts of the new signalling system. The second used a three dimensional representation of the proposed signal box layout for a busy one hour scenario. A key finding was that the new box could be run by two signallers with acceptable levels of workload, even with minor failures. A number of changes to the layout were proposed based on the experience of an hour's simulation. The methodology showed that a cardboard model can be a useful tool in a participatory approach aiding the assessment of design and mental workload in a format that can be readily understood by all the stakeholders.
Original languageEnglish
DOIs
Publication statusPublished - 2017
Externally publishedYes
EventH-Workload 2017 - Dublin, Ireland
Duration: 28 Jun 201730 Jun 2017

Conference

ConferenceH-Workload 2017
Country/TerritoryIreland
CityDublin
Period28/06/1730/06/17
OtherThe first international symposium on human mental workload

Keywords

  • Bedford Scale
  • NASA TLX
  • simulation fidelity
  • signalling system
  • signal box layout
  • workload assessment
  • participatory approach
  • design assessment
  • mental workload

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