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Speeding and Speed Modification of Older Drivers: Does Vehicle Type Make a Difference?

  • Andrew W. Cull (a1), Michelle M. Porter (a1), Satoru Nakagawa (a1), Glenys A. Smith (a1), Mark J. Rapoport (a2), Shawn C. Marshall (a3), Michel Bédard (a4), Holly Tuokko (a5), Brenda Vrkljan (a6), Gary Naglie (a7), Anita M. Myers (a8) and Barbara Mazer (a9)...


The purpose of this study was to examine whether vehicle type based on size (car vs. other = truck/van/SUV) had an impact on the speeding, acceleration, and braking patterns of older male and female drivers (70 years and older) from a Canadian longitudinal study. The primary hypothesis was that older adults driving larger vehicles (e.g., trucks, SUVs, or vans) would be more likely to speed than those driving cars. Participants (n = 493) had a device installed in their vehicles that recorded their everyday driving. The findings suggest that the type of vehicle driven had little or no impact on per cent of time speeding or on the braking and accelerating patterns of older drivers. Given that the propensity for exceeding the speed limit was high among these older drivers, regardless of vehicle type, future research should examine what effect this behaviour has on older-driver road safety.

Le but de cette étude était d’examiner si le type de véhicule, catégorisé en fonction de la taille (voiture vs autre : camion, fourgonnette, véhicule utilitaire sport), avait une influence sur la propension à faire des excès de vitesse, sur l’accélération et les habitudes de freinage des conducteurs et conductrices plus âgés (70 ans et plus), dans le cadre d’une étude longitudinale canadienne. L’hypothèse principale était que les personnes âgées conduisant de plus gros véhicules (p. ex. camions, VUS ou fourgonnettes) seraient plus susceptibles de faire des excès de vitesse que celles conduisant des voitures. Un dispositif enregistrant la conduite avait été installé dans les véhicules des participants (n = 493). Les résultats suggèrent que le type de véhicule conduit a eu peu ou pas d’impact sur le pourcentage de temps passé en excès de vitesse, ou sur les schémas de freinage et d’accélération des conducteurs âgés. Étant donné que la propension à dépasser la limite de vitesse était élevée chez ces conducteurs âgés, quel que soit le type de véhicule, les recherches futures devraient examiner l’effet de ce comportement sur la sécurité routière des conducteurs âgés.


Corresponding author

La correspondance et les demandes de tirés-à-part doivent être adressées à : / Correspondence and requests for offprints should be sent to: Michelle M. Porter, Ph.D., Professor Faculty of Kinesiology and Recreation Management 102 Frank Kennedy Centre University of Manitoba Winnipeg, MB R3T 2N2 (


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This study was funded by AUTO21, Manitoba Centres of Excellence Fund, and a Team Grant from the Canadian Institutes of Health Research (CIHR) entitled “The CIHR Team in Driving in Older Persons (Candrive II) Research Program” (grant 90429). Additional support was provided by the Ottawa Hospital Research Institute and the Toronto Rehabilitation Institute, University Health Network, and the University of Manitoba. Gary Naglie is supported by the George, Margaret and Gary Hunt Family Chair in Geriatric Medicine, University of Toronto. Michel Bédard was supported by a Canada Research Chair in Aging and Health during the development phase of this study. None of the funders were involved in any aspects of the study or the manuscript.

The Candrive Investigators thank the Candrive cohort study participants for their dedication. Without their commitment, this publication would not have been possible. The Candrive Investigators thank Lynn MacLeay, Candrive program manager, for her role in managing and operationalizing the study for the Canadian sites. The Candrive investigators thank the research associates for their dedication and contribution to the success of the study (in order of participant recruitment); Candrive Research Coordinators; Jennifer Biggs and Anita Jessup (Ottawa Coordinating Centre), Phyllis McGee (Victoria), Linda Johnson and Joanne Parsons (Winnipeg), Novlette Fraser and Sue Woodard (Toronto), Sheila Garrett (Hamilton), Felice Mendelsohn, Minh-Thy DinhTruong, Suzie Schwartz, and Rivi Levkovich (Montreal), and Laura Morrison and Hillary Maxwell (Thunder Bay). The Candrive Investigators thank the additional support staff for their dedication and contribution to the success of the study: Kelly Weegar and Chantal Rockwell (Ottawa). The Candrive investigators wish to thank the following individuals for their work associated with the in-vehicle driving data: Melissa Smith, Sandra Webber, and Maureen Babb (Winnipeg).



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