Research

Uncovering the Spillover Effect from Posted Speed Limit Changes: A Tool to Examine Potential Safety Concerns

Roadway Systems & Drivers

Uncovering the Spillover Effect from Posted Speed Limit Changes: A Tool to Examine Potential Safety Concerns

This research employed a systematic exploration of the literature and spatial analysis to uncover speed-related crashes on roadways adjacent to Interstate highways with newly increased posted speed limits.

April 2024 Technical Report | Report Summary

Drowsy Driving in Fatal Crashes, United States, 2017–2021

Driver Behavior & Performance

Drowsy Driving in Fatal Crashes, United States, 2017–2021

The contribution of drowsy driving to motor vehicle crashes is difficult to measure. This study uses data from a sample of in-depth crash investigations to develop a model to estimate the percentage of fatal crashes nationwide that involve drowsy driving.

March 2024 Research Brief

Countermeasures for Distracted Driving: An Exploration Beyond the Scientific Literature

Driver Behavior & Performance

Countermeasures for Distracted Driving: An Exploration Beyond the Scientific Literature

This report presents a comprehensive review of current efforts by national, state, local, and international organizations at implementing countermeasures to address driver distraction.

February 2024 Technical Report | Report Summary

AAA Longitudinal Research on Aging Drivers (LongROAD) Data User Guide

Vulnerable Road Users

AAA Longitudinal Research on Aging Drivers (LongROAD) Data User Guide

This document serves as the data user guide for the 5-year multi-site AAA LongROAD prospective cohort study of 2,990 drivers aged 65–79 at baseline.

January 2024 Technical Report

Roadside Assistance Providers Fatally Struck by Vehicles at the Roadside: Incidence and Characteristics

Roadway Systems & Drivers

Roadside Assistance Providers Fatally Struck by Vehicles at the Roadside: Incidence and Characteristics

Roadside assistance providers risk their own safety to help stranded motorists. This report examines crashes in which roadside assistance providers were struck and killed by vehicles, to inform efforts to protect them.

January 2024 Technical Report | Report Summary

Examining Equity in Traffic Safety: A National Perspective and Case Studies in Several States

Ongoing Research

Examining Equity in Traffic Safety: A National Perspective and Case Studies in Several States

Project Synopsis

Roadside Assistance Vehicle Lighting and Safety

Ongoing Research

Roadside Assistance Vehicle Lighting and Safety

Project Synopsis

2022 Traffic Safety Culture Index

Driver Behavior & Performance

2022 Traffic Safety Culture Index

The 2022 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.

November 2023 Technical Report | Report Summary

A Safe System Guide for Transportation: Sharing this Approach to Lead Your Community to Action

Roadway Systems & Drivers

A Safe System Guide for Transportation: Sharing this Approach to Lead Your Community to Action

This document presents recommendations for framing Safe System interventions to facilitate public acceptance and support.

November 2023 Technical Report | Report Summary

Increasing Equity in Traffic Safety: Case Studies in Ohio, Texas, and Washington

Ongoing Research

Increasing Equity in Traffic Safety: Case Studies in Ohio, Texas, and Washington

Project Synopsis