Research
Drowsiness and Decision Making During Long Drives: A Driving Simulation Study
This report presents the results of a driving simulation study designed to assess the extent to which drowsy drivers are aware of their own drowsiness as well as factors influencing their decisions regarding whether to continue driving or stop for a break.
March 2023 Technical Report | Report Summary
Investigating the Incidence and Circumstances of Roadside Response Personnel Injuries and Deaths
Project Synopsis
In-Vehicle Technology Use and Associated Factors Among Older Drivers
This study examines the prevalence and frequency of use of in-vehicle technologies as well as the relationships between technology-use frequency and associated factors among a subset of AAA Longitudinal Research on Aging Drivers (AAA LongROAD) participants.
January 2023 Research Brief
User Interactions with Vehicle Automation Technologies: A Review of Previous Research and a Proposed Framework
This research brief reviews recent research and proposes a framework on user perceptions, understanding, and interactions with vehicle automation technology.
January 2023 Research Brief
Protecting Roadside Workers: Field Evaluation of Flares, Cones, and Tow Truck Light Patterns
This report documents a study with three aims: evaluate the effectiveness of flares or cones in combination with two different tow truck lighting systems; survey workers regarding use of flares and cones; and document available and potential countermeasures.
January 2023 Technical Report | Report Summary
Protecting Roadside Workers: Field Evaluation of a Vehicle-Mounted Variable Message Sign and Examination of Worker Perceptions and Use of Countermeasures
This project assesses the effectiveness of a vehicle-mounted variable message sign in promoting safer behaviors in passing motorists. The study also examined workers’ perceptions and adoption or use of different countermeasures.
January 2023 Technical Report | Report Summary
A Randomized Field Trial of Smartphone-based Feedback Designed to Encourage Safe Driving
Project Synopsis
Traffic Safety Impact of the COVID-19 Pandemic: Fatal Crashes Relative to Pre-Pandemic Trends, United States, May–December 2020
The number of traffic fatalities increased significantly in the United States during the COVID-19 pandemic. This Research Brief identifies crash-, vehicle-, and driver-related factors that contributed most to the increase in traffic fatalities.
December 2022 Research Brief
2021 Traffic Safety Culture Index
The 2021 iteration of the annual Traffic Safety Culture Index survey provides insights into the magnitude of discordance between drivers’ attitudes/perceptions and their engagement in unsafe driving behaviors.
December 2022 Technical Report | Report Summary