The presentation is based on the abstract authored by: (1) Victoria Kroll: Esitu Solutions, Dryden Enterprise Centre, Nottingham, NG1 4FQ, UK; (2) David Crundall: Nottingham Trent University, 50 Shakespeare Street, Nottingham, NG1 4FQ, UK; (3) Helen Luker: DVSA, UK. The presentation will be delivered by Victoria Kroll.
Display size has not been widely considered in hazard perception research, despite its relevance to setting display specifications for formal assessments or delivering hazard training across different devices. In this study, we explored the impact of display size on hazard perception through an online test featuring ten computer generated imagery hazard clips. A total of 1008 participants completed the test using a mobile phone, tablet, laptop, or desktop computer with an external monitor. Data were collected on the window resolution and device type used by each participant.
The results demonstrated that display size significantly impacted on hazard perception performance, with an improvement in participants’ scores as display size increases. Comparisons of hazard scores across the four different device types also found devices with larger displays to produce better hazard scores, though the most significant step-change in performance was noted for those participants who used a desktop computer with an external monitor. However, the effect of display size was not consistent across all hazard clips. Hazards requiring attention to subtle cues (e.g., spotting pedestrian movement through a parked car’s windows) benefited the most from larger displays. Further analysis compared the performance of 58 drivers with a history of blameworthy crashes to a matched group of crash-free drivers. The crash-free drivers scored significantly higher, supporting the test’s validity in distinguishing between safer and less-safe drivers.
Interestingly, participants’ perceptions of the test’s fairness were not influenced by window resolution. However, those using mobile phones were less confident that the device allowed them to fully demonstrate their skills compared to laptops. Despite this, younger drivers may still prefer mobile devices for accessing training materials. We conclude that display size does have a significant impact on hazard perception performance, with larger displays improving participants’ scores. Using an external monitor results in a step-change in performance.
FURTHER DETAILS OF INTEREST FOR PARTICIPANTS:
- Time: 16 October 2025, Time TBC
- Fee: This members-only event is free-of-charge
- Location: online
- Working language: English
- Registration: The deadline for registrations is 14 October 2025