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 language | English |
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DOIs | |
Publication status | Published - 2017 |
Externally published | Yes |
Event | H-Workload 2017 - Dublin, Ireland Duration: 28 Jun 2017 → 30 Jun 2017 |
Conference
Conference | H-Workload 2017 |
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Country/Territory | Ireland |
City | Dublin |
Period | 28/06/17 → 30/06/17 |
Other | The 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