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

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

A Multi-Site Examination for the Impact of Changes in Posted Speed Limit on Traffic Safety

Roadway Systems & Drivers

A Multi-Site Examination for the Impact of Changes in Posted Speed Limit on Traffic Safety

This study examined the effects of posted speed limit changes on traffic safety by conducting before-and-after assessments using crash and speed data from multiple sites.

July 2023 Research Brief

Protecting Roadside Workers: Field Evaluation of Flares, Cones, and Tow Truck Light Patterns

Roadway Systems & Drivers

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

Roadway Systems & Drivers

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

Traffic Fatalities on Urban Roads and Streets in Relation to Speed Limits and Speeding, United States, 2010–2019

Roadway Systems & Drivers

Traffic Fatalities on Urban Roads and Streets in Relation to Speed Limits and Speeding, United States, 2010–2019

This research brief examines characteristics of traffic fatalities on urban roads and streets in relation to various factors, with an emphasis on the speed limits present at crash locations, as well as the role of speeding.

July 2022 Research Brief

Improving Roadside Responder Crash Data: Outcomes from an Expert Roundtable Discussion

Roadway Systems & Drivers

Improving Roadside Responder Crash Data: Outcomes from an Expert Roundtable Discussion

This brief highlights a roundtable discussion that sought to identify ways to improve data about the safety of incident response and emergency services personnel working on the side of the road. Recommendations are made based on information provided by the panel of experts.

December 2021 Research Brief

Impact of Speeds on Drivers and Vehicles – Results from Crash Tests

Roadway Systems & Drivers

Impact of Speeds on Drivers and Vehicles – Results from Crash Tests

This study examines how vehicle crashworthiness and occupant protection degrade as impact speeds increase. The results and implications in this report provide valuable information for those who advocate for safety considerations when setting maximum posted speed limits.

January 2021 Technical Report | Report Summary

Review of Current Practices for Setting Posted Speed Limits

Roadway Systems & Drivers

Review of Current Practices for Setting Posted Speed Limits

The aim of this study is to investigate the current practice of how speed limits are set across the country and to understand how the process impacts the traffic environment and drivers’ behaviors.

April 2019 Research Brief

Safety Benefits of Highway Infrastructure Investments

Roadway Systems & Drivers

Safety Benefits of Highway Infrastructure Investments

This study estimates the reduction in serious injuries and deaths that could potentially be achieved through investment in proven cost-effective highway infrastructure safety measures, and the level of investment required to achieve those benefits.

May 2017 Technical Report | Report Summary