This study aimed to explore the impact of an awareness tool for relatives of older drivers (OSCARPA) on i) their interest, openness and knowledge, ii) changes of abilities required for safe driving, and iii) utilization of compensatory strategies. A pre-experimental design with pretest (T0) and post-test (T1) eight to ten weeks after the intervention was realized with 45 relatives in contact with an older driver of 65 years old or older and who was driving at least once a week. Overall, the results demonstrated that OSCARPA increased i) interest, openness and knowledge of relatives (p<0.001), as well as their perceptions of ii) changes of abilities of older drivers (p=0.02), and iii) their utilization of compensatory strategies (p=0.001). Future studies would be relevant to further evaluate and increase the effectiveness of OSCARPA.
