Journal
APPLIED ERGONOMICS
Volume 47, Issue -, Pages 52-64Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apergo.2014.08.002
Keywords
Automation; Rail human factors; Workload; Performance
Categories
Funding
- Network Rail
- Engineering and Physical Sciences Research Council (EPSRC)
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This paper describes an experiment that was undertaken to compare three levels of automation in rail signalling; a high level in which an automated agent set routes for trains using timetable information, a medium level in which trains were routed along pre-defined paths, and a low level where the operator (signaller) was responsible for the movement of all trains. These levels are described in terms of a Rail Automation Model based on previous automation theory (Parasuraman et al., 2000). Performance, subjective workload, and signaller activity were measured for each level of automation running under both normal operating conditions and abnormal, or disrupted, conditions. The results indicate that perceived workload, during both normal and disrupted phases of the experiment, decreased as the level of automation increased and performance was most consistent (i.e. showed the least variation between participants) with the highest level of automation. The results give a strong case in favour of automation, particularly in terms of demonstrating the potential for automation to reduce workload, but also suggest much benefit can achieved from a mid-level of automation potentially at a lower cost and complexity. (c) 2014 Elsevier Ltd and The Ergonomics Society. All rights reserved.
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