Elizabeth Crundall
A driving simulator study to explore the effects of text size on the visual demand of in-vehicle displays
Crundall, Elizabeth; Large, David R.; Burnett, Gary
Abstract
Modern vehicles increasingly utilise a large display within the centre console, often with touchscreen capability, to enable access to a wide range of driving and non-driving-related functionality. The text provided on such displays can vary considerably in size, yet little is known about the effects of different text dimensions on how drivers visually sample the interface while driving and the potential implications for driving performance and user acceptance. A study is described in which sixteen people drove motorway routes in a medium-fidelity simulator and were asked to read text of varying sizes (9 mm, 8 mm, 6.5 mm, 5 mm, or 4 mm) from a central in-vehicle display. Pseudo-text was used as a stimulus to ensure that participants scanned the text in a consistent fashion that was unaffected by comprehension. There was no evidence of an effect of text size on the total time spent glancing at the display, but significant differences arose regarding how glances were distributed. Specifically, larger text sizes were associated with a high number of relatively short glances, whereas smaller text led to a smaller number of long glances. No differences were found in driving performance measures (speed, lateral lane position). Drivers overwhelmingly preferred the ‘compromise’ text sizes (6.5 mm and 8 mm). Results are discussed in relation to the development of large touchscreens within vehicles.
Journal Article Type | Article |
---|---|
Acceptance Date | May 6, 2016 |
Online Publication Date | May 7, 2016 |
Publication Date | Jul 1, 2016 |
Deposit Date | May 25, 2016 |
Publicly Available Date | May 25, 2016 |
Journal | Displays |
Print ISSN | 0141-9382 |
Electronic ISSN | 1872-7387 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 43 |
Pages | 23-29 |
DOI | https://doi.org/10.1016/j.displa.2016.05.003 |
Keywords | Text-size; Driving; Simulation; Visual demand; Eye-tracking; Pseudo-text |
Public URL | https://nottingham-repository.worktribe.com/output/791982 |
Publisher URL | http://www.sciencedirect.com/science/article/pii/S0141938216300658 |
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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0
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