Vehicle safety characteristics in vulnerable driver populations

Area of Science:

• Road safety
• Traffic injury prevention
• Vehicle safety standards

Background:

• Young, old, and low socioeconomic status (SES) drivers face higher crash injury risks.
• Understanding vehicle safety disparities among these vulnerable groups is crucial for injury reduction.
• Previous research indicates a potential link between SES, age, and vehicle safety, but population-based data are limited.

Purpose of the Study:

• To estimate the prevalence of key vehicle safety features among drivers in New Jersey.
• To identify disparities in vehicle safety criteria across different driver age groups and socioeconomic statuses.
• To inform strategies aimed at improving vehicle safety for vulnerable driver populations.

Main Methods:

• Analysis of New Jersey licensing and crash data from 2010-2017 (n=983,372).
• Utilized a quasi-induced exposure method to represent on-road driver populations.
• Vehicle Information Number (VIN) decoding to ascertain model year, electronic stability control (ESC), airbags, and horsepower.

Main Results:

• Youngest (17-24) and oldest (≥65) drivers were more likely to operate older vehicles lacking ESC and side airbags.
• Drivers with higher SES consistently drove newer vehicles with better safety features compared to lower SES drivers.
• Young drivers in the lowest income areas drove vehicles nearly twice as old as those in the highest income areas.

Conclusions:

• Vulnerable driver groups (young, old, low SES) are disproportionately using less safe vehicles.
• Vehicle safety is a critical factor in road safety, yet disparities persist.
• Further exploration of ensuring access to safer vehicles for vulnerable populations is recommended to reduce crash injuries.