Abstract
In the presented study, latency between physical event and displayed content is considered in order to provide a quantifiable criterion. In a driving simulator the influence of a contact-analog lane marker which was subjected to different stages of latency (17 ms, 50 ms, 100 ms) is examined. In total 43 participants took part in this experiment. A detection response task was conducted to evaluate the subjects’ reaction times and cognitive workload [1]. Usability was assessed by applying the system usability scale [2]. Changes in latency have a significant influence on stress and usability. Specifically latencies over 50 ms have a negative effect on the dependent variables. Results suggest that latencies of up to 50 ms are still considered acceptable in terms of usability as evaluated in the implemented use case.
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Acknowledgment
The authors would like to thank Mr. Tobias Schumm and Mr. Johannes Salzberger from Audi AG for their continuing support and expertise during this experiment.
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Walter, M., Wendisch, T., Bengler, K. (2019). In the Right Place at the Right Time? A View at Latency and Its Implications for Automotive Augmented Reality Head-Up Displays. In: Bagnara, S., Tartaglia, R., Albolino, S., Alexander, T., Fujita, Y. (eds) Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018). IEA 2018. Advances in Intelligent Systems and Computing, vol 823. Springer, Cham. https://doi.org/10.1007/978-3-319-96074-6_38
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