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Understanding the Impact of P Plate Display on Provisional Drivers' Compliance

This research examines the behavioral differences between provisionally licensed drivers in New South Wales, Australia, who display P Plates and those who do not. Findings suggest that drivers who display P Plates are more likely to adhere to provisional speed limits and obey road rules, even when unobserved. The study highlights the importance of P Plates in promoting compliance with graduated driver licensing (GDL) regulations and suggests areas for further research, including police enforcement and parental influence on young drivers.

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Understanding the Impact of P Plate Display on Provisional Drivers' Compliance

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  1. Differences between provisionally licensed drivers who always display P plates and those who do not Dr Lyndel Bates, Professor Barry Watson, Dr Mark King ANZSOC 1-3 October 2013

  2. Background • GDL reduces crash risk for novice drivers (Ehsani et al, 2013) • Further benefits of GDL are likely to result from: • Increased compliance with the system • Enhancing the ability of police to enforce (Curry et al, 2013)

  3. Background • Internationally, identifying a provisional driver requires a traffic stop and license inspection (Goodwin & Foss, 2004) • Australia is one of the few places that requires provisional drivers to display P plates

  4. P Plates • P Plates designed to: • Facilitate enforcement efforts • Improve compliance with GDL restrictions • Reduce risky driving and crashes (Haworth & Senserrick, 2005) • Unlikely to display voluntarily (Bates, 2012) • New Jersey implemented a decal law in 2010 (Curry et al, 2013) • Limited evaluation and no Australian evaluation (Curry et al, 2013; Williams et al, 2012)

  5. NSW GDL system

  6. Method • Recruited outside driver licensing centres in NSW • Telephone interview after approximately 20 months driving experience • Completed between April and October 2008

  7. Participants • 96 participants • Male: 45 (46.9%) • Female: 51 (53.1%) • Age: • M = 20.26 • sd = 3.31 • Median = 19 • Mode = 19

  8. Type of provisional licence

  9. Access to a car

  10. Display of P plates

  11. Tow large items

  12. Obey vehicle power restriction

  13. If lost licence, would not drive with passenger

  14. Drive after a couple of drinks

  15. Obey provisional speed limit

  16. Break the road rules if you know you won’t get caught

  17. Crashes and offences

  18. Conclusions • Provisional drivers that display P plates are more likely to: • Obey the provisional speed limit • Obey the road rules – even when they know they won’t get caught • Possible that there are other differences • Small numbers is a limitation

  19. Further research • How do provisional drivers perceive police enforcement? • Are parents enforcing GDL provisions? • How do police perceive their role in the enforcement of provisional drivers? • What role do P plates play in facilitating enforcement by police? • What are the motivations for not wearing P plates?

  20. References Bates, L. (2012). The Experiences of Learner Drivers, Provisional Drivers and Supervisors with Graduated Driver Licensing in Two Australian Jurisdictions. (PhD), University of Technology, Brisbane. Curry, A., Pfeiffer, M., Localio, R., & Durbin, D. (2013). Graduated Driver Licensing Decal Law : Effect on Young Probationary Drivers. American Journal of Preventive Medicine, 44(1), 1-7. Ehsani, J. P., Bingham, C. R., & Shope, J. T. (2013). Graduated Driver Licensing for new drivers: Effects of three states' policies on crash rates among teenagers. American Journal of Preventive Medicine, 45(1), 9-18. Goodwin, A. H., & Foss R. D. (2004). Graduated driver licensing restrictions: Awareness, compliance, and enforcement in North Carolina. Journal of Safety Research, 35(4), 367–374. Haworth, N., & Senserrick, T. M. (2005). Review of literature regarding national and international young driver training, licensing and regulatory systems. Melbourne: Monash University Accident Research Centre. Williams, A., Tefft, B., & Grabowski, D. C. (2012). Graduated driver licensing research, 2010-present. Journal of Safety Research, 43, 195-203.

  21. Thank youQuestions? Lyndel.Bates@qut.edu.au

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