A recent study by the AAA Foundation concluded that frailty in older drivers is associated with lower driving rates and might place these drivers at a higher risk of increased crash rates. The study categorized drivers as either low-mileage or non-low-mileage drivers after collecting driver data on distance traveled and vehicle speed. Driver frailty was measured on a scale based on criteria the participants exhibited such as shrinking, weakness, exhaustion, slowness, and low physical activity.
Results showed that frailty was significantly associated with low-mileage drivers. Frail drivers have increased rates of becoming non-drivers and are more likely to drive less than those who are not frail. Previous research found that the highest crash rates per mile driven among older drivers have been attributed to low-mileage drivers. The study concludes, interventions for older drivers that reduce frailty and increase miles driven per year could reduce crash rates for these drivers.