Pranil GC, Ratvinder Grewal

Abstract: Falling from height is considered one of the top causes of workplace injuries and fatalities in the construction industry. The regulatory WAH training, conducted in-class and lecture-based, has been successfully implemented; however, its effect is modest. This study aims to find the relationship between the traditional method and VR simulation in terms of user perception. A crossover design was adopted where participants experienced video and VR training in different sequences. Widely used SUS to measure perceived usability and a VR perception questionnaire was implemented. The two-factor analysis of SUS resulted in new usability and learnability. The result shows no significant difference in perceived usability between the training methods. However, on further analysis, one group found video easier to learn. Similarly, there was a significant inclination of users towards VR training in terms of preference, engagement, and ease of remembering. The Spearman correlation revealed older participants perceived the VR interface as less usable. It was also observed that the training order with video first followed by VR perceived the overall system better as compared to the other group. Further suggestions using qualitative data analysis are proposed.

Keywords: Virtual Reality, Working at height training, Usability, Learnability.

Date Published: November 4, 2024
DOI: 10.11159/jmids.2024.014

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