Older Drivers & Passengers: Crash Risk Reduced
Older drivers, even those with cognitive issues, may experience fewer accidents when a passenger is present. A new study analyzing U.S.traffic crash data from 2014-2020 reveals a significant link between passenger presence and improved older driver safety. Researchers found that drivers aged 75 and older were less likely to be at fault in car accidents when accompanied by a passenger, regardless of cognitive assessments during license renewal. This effect remained consistent for both men and women.
This groundbreaking research further explores the nuances of passenger safety,suggesting a possible positive influence,even in drivers exhibiting signs of potential cognitive decline. The presence of a passenger seemed to mitigate risks, offering a new viewpoint on how to reduce accidents. This study, supported by JSPS KAKENHI, focused also on the cognitive impairment of the drivers. News Directory 3 is constantly on the lookout for similar findings. Discover what’s next in preventing accidents for our aging population.
Passengers May Improve Older Driver Safety, Even With Cognitive Issues
Updated June 5, 2025
Older drivers might be less likely to cause car accidents when a passenger is present, according to a study by University of Tsukuba researchers. Teh analysis of nationwide traffic crash data between 2014 and 2020 found that this effect held true even for drivers showing signs of cognitive impairment. The research, supported by JSPS KAKENHI grant number 21H03195, explores factors influencing older driver safety.
The study focused on drivers aged 75 and older who underwent cognitive assessments during license renewal from 2014 to 2017. Researchers categorized drivers involved in car-to-car crashes within three years of renewal as either at-fault (first party) or not-at-fault (second party). They then compared passenger presence at the time of the crash with cognitive assessment results, including instances of suspected dementia. Gender was also considered in the analysis of passenger safety.
The findings indicated that second-party drivers, nonetheless of cognitive function, were more likely to have had a passenger than first-party drivers. This trend was consistent for both men and women.other factors, such as age, prior crash history, time of day, weather conditions, and location, did not show meaningful differences between the two groups. These results suggest a potential link between cognitive impairment and passenger influence.
These results suggest that older drivers, even those flagged for potential cognitive decline or suspected dementia during assessments, may have a reduced likelihood of being the first party in car-to-car crashes if accompanied by a passenger.
What’s next
Further research is needed to establish a causal relationship and explore how passengers contribute to safer driving among older adults. The study highlights the potential benefits of passengers in mitigating risks associated with older drivers, especially those with cognitive concerns.