Research
A Randomized Field Trial of Smartphone-Based Feedback Designed to Encourage Safe Driving: Comparing Focused and Self-Chosen Goals to Standard Usage-Based Insurance Messaging
The goal of this research was to examine whether providing feedback and incentives through a smartphone app improves driver safety, and whether greater improvements are possible and sustained by assigning or allowing drivers to choose more focused goals.
April 2025 Technical Report | Report Summary
Alternative Transportation Use and Life Satisfaction Among Older Drivers: AAA LongROAD Study
This research brief investigates changes in use of alternative transportation modes and satisfaction with health, family life, and daily life over time among older drivers.
March 2025 Research Brief
Examination of Cannabis Users’ Perceptions and Self-Reported Behaviors to Inform Messaging to Deter Impaired Driving
To address the paucity of evidence on strategies to deter driving after cannabis use, this multiphase project interviewed relevant experts and surveyed cannabis users to inform recommendations for public policy stakeholders, law enforcement, and public health professionals.
March 2025 Technical Report | Report Summary
Development and Validation of Messaging to Deter Cannabis Impaired Driving
This study interviewed cannabis users to gain a better understanding of attitudes, perceptions, and reasons for driving under the influence in order to inform the development of messages to deter cannabis impaired driving, which were then tested for perceived effectiveness.
March 2025 Technical Report | Report Summary
Pedestrian Fatalities on Urban Arterial Roads at Night: An In-Depth Crash Analysis and Three Case Studies
This mixed-method study investigated factors contributing to the increasing trend in pedestrian fatalities in darkness on urban arterials. The report presents the findings in the context of the current body of literature on pedestrian safety and measures to improve it.
January 2025 Technical Report | Report Summary
Cannabis Use, Public Health, and Traffic Safety: Outcomes from the Scientific Literature and Expert Opinion on the Potential Impacts of Rescheduling
This study synthesizes existing scientific evidence regarding cannabis use and decriminalization in terms of the factors used to determine drug scheduling under the Controlled Substances Act. Further, it explores expert opinion on potential impacts of cannabis rescheduling.
December 2024 Technical Report | Report Summary
2023 Traffic Safety Culture Index
The 2023 iteration of the annual Traffic Safety Culture Index describes Americans’ perceptions of, attitudes towards, and engagement in dangerous driving behaviors, and identifies profiles of risky driving.
December 2024 Technical Report | Report Summary
Developing a Near-Miss Reporting System for Roadside Responders
This report describes the results of research that seeks to explore and identify the elements required for a successful near-miss reporting system as well as some of the inherent challenges.
November 2024 Technical Report | Report Summary
Identifying Outcome Measures to Evaluate Drivers’ Knowledge of Vehicle Automation
The main objective of this study was to identify and appraise outcome measures that could be used to assess or infer a driver’s knowledge of advanced vehicle technologies, and by extension, the effectiveness of training and education on these same technologies.
October 2024 Technical Report | Report Summary