The Impact of Advanced Vehicle Technologies on Older Driver Safety: A Scoping Review of Subjective Outcomes

Advanced vehicle technologies (AVTs) have the potential to modify an older driver's behind-the-wheel performance by compensating for age and/or health-related changes that can negatively impact their ability to operate a motor vehicle. However, the safety implications of these rapidly evolving technologies are not well understood. A scoping review was conducted to understand the current state of research on AVTs with a particular focus on subjective outcome measures specific to older drivers. Sixteen articles met the inclusion criteria for this scoping review. The methods used to address subjective outcomes across studies were summarized. Seven main subjective outcomes were identified: trust, functionality, satisfaction, usability, workload, acceptability, and usefulness. The results highlight inconsistencies in the research with defining these concepts. Consequently, there is an identified need for a more rigorous classification system and consistent application and interpretation of subjective measures with regard to AVTs.