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Mulhall M, Wilson K, Yang S, Kuo J, Sletten T, Anderson C, Howard ME, Rajaratnam S, Magee M, Collins A, Lenné MG. European NCAP Driver State Monitoring Protocols: Prevalence of Distraction in Naturalistic Driving. Hum Factors 2023:187208231194543. [PMID: 37599390 DOI: 10.1177/00187208231194543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
OBJECTIVE examine the prevalence of driver distraction in naturalistic driving when implementing European New Car Assessment Program (Euro NCAP)-defined distraction behaviours. BACKGROUND The 2023 introduction of Occupant Status monitoring (OSM) into Euro NCAP will accelerate uptake of Driver State Monitoring (DSM). Euro NCAP outlines distraction behaviours that DSM must detect to earn maximum safety points. Distraction behaviour prevalence and driver alerting and intervention frequency have yet to be examined in naturalistic driving. METHOD Twenty healthcare workers were provided with an instrumented vehicle for approximately two weeks. Data were continuously monitored with automotive grade DSM during daily work commutes, resulting in 168.8 hours of driver head, eye and gaze tracking. RESULTS Single long distraction events were the most prevalent, with .89 events/hour. Implementing different thresholds for driving-related and driving-unrelated glance regions impacts alerting rates. Lizard glances (primarily gaze movement) occurred more frequently than owl glances (primarily head movement). Visual time-sharing events occurred at a rate of .21 events/hour. CONCLUSION Euro NCAP-described driver distraction occurs naturalistically. Lizard glances, requiring gaze tracking, occurred in high frequency relative to owl glances, which only require head tracking, indicating that less sophisticated DSM will miss a substantial amount of distraction events. APPLICATION This work informs OEMs, DSM manufacturers and regulators of the expected alerting rate of Euro NCAP defined distraction behaviours. Alerting rates will vary with protocol implementation, technology capability, and HMI strategies adopted by the OEMs, in turn impacting safety outcomes, user experience and acceptance of DSM technology.
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Affiliation(s)
| | - Kyle Wilson
- Seeing Machines Ltd, Canberra, ACT, Australia
| | - Shiyan Yang
- Seeing Machines Ltd, Canberra, ACT, Australia
| | - Jonny Kuo
- Seeing Machines Ltd, Canberra, ACT, Australia
| | - Tracey Sletten
- Cooperative Research Centre for Alertness, Safety and Productivity, Melbourne, VIC, Australia
- Turner Institute of Brain and Mental Health, Monash University, Clayton, VIC, Australia
| | - Clare Anderson
- Cooperative Research Centre for Alertness, Safety and Productivity, Melbourne, VIC, Australia
- Turner Institute of Brain and Mental Health, Monash University, Clayton, VIC, Australia
| | - Mark E Howard
- Cooperative Research Centre for Alertness, Safety and Productivity, Melbourne, VIC, Australia
- Turner Institute of Brain and Mental Health, Monash University, Clayton, VIC, Australia
- Institute for Breathing and Sleep, Austin Health, Heidelberg, VIC, Australia
| | - Shantha Rajaratnam
- Cooperative Research Centre for Alertness, Safety and Productivity, Melbourne, VIC, Australia
- Turner Institute of Brain and Mental Health, Monash University, Clayton, VIC, Australia
| | - Michelle Magee
- Cooperative Research Centre for Alertness, Safety and Productivity, Melbourne, VIC, Australia
- Turner Institute of Brain and Mental Health, Monash University, Clayton, VIC, Australia
| | - Allison Collins
- Institute for Breathing and Sleep, Austin Health, Heidelberg, VIC, Australia
| | - Michael G Lenné
- Seeing Machines Ltd, Canberra, ACT, Australia
- Monash University Accident Research Centre, Monash University, Clayton, VIC, Australia
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