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Read the latest news and announcements from traffic safety interest groups and about traffic safety topics here.
For the fourth straight year, the Governors Highway Safety Association (GHSA) and the National Road Safety Foundation (NRSF) are funding community-based projects and programs focused on keeping youth safe while walking, biking and/or riding scooters. The State Highway Safety Offices (SHSOs) in Missouri, Oregon and Washington will each receive $25,000 for youth safety initiatives in […]
We quantify the aggregate, regional and sectoral impacts of transportation productivity growth on the US economy over the period 1947-2017. Using a multi-region, multi-sector model that explicitly captures produced transportation services as a key input to interregional trade, we find that the calibrated change in transportation productivity had a sizable impact on aggregate welfare, magnified […]
Grouted tendons are predominantly used for post-tensioned concrete bridge elements in the United States. However, because of potential durability issues with grouted tendons, some highway agencies have opted to use ungrouted tendons for post-tensioning to facilitate replacement. NCHRP Research Report 1139: Considerations for the Design and Construction of Bonded and Unbonded Post-Tensioned Concrete Bridge Elements, […]
Artificial intelligence (AI) has revolutionized various areas in departments of transportation (DOTs), such as traffic management and optimization. Through predictive analytics and real-time data processing, AI systems show promise in alleviating congestion, reducing travel times, and enhancing overall safety by alerting drivers to potential hazards. AI-driven simulations are also used for testing and improving transportation […]
Travelers who are blind or visually impaired use a variety of cues and strategies to orient themselves within their surroundings and move through space to where they want to go. This wayfinding process can be particularly challenging in complex urban environments where some cues, such as detectable edge treatments, the sound of surging parallel traffic, […]
Cannabis is the most widely used psychotropic substance surpassing alcohol use in 2022 in the United States. As with other impairing substances, evidence suggests that driving under the influence of cannabis is also associated with an increased risk of crashes, injuries, and fatalities. There is a paucity of evidence on strategies to impact driving after […]
With the recent liberalization of cannabis control laws, increasingly larger numbers of drivers are testing positive for cannabis. Research suggests many cannabis users believe driving under the influence of the drug is relatively safe. The purpose of this multiphase project was to understand cannabis users’ thoughts, perceptions, and reasons for driving under the influence of […]
The number of pedestrians killed on U.S. roads and streets has increased by more than 80% since reaching its modern-era record low in 2009. While the contributions of factors such as vehicle size and driver behavior have been the subject of extensive research, two additional factors also stand out: time of day and location. Virtually […]
This study explored the feasibility and acceptability of using stay in-place fiberglass reinforced plastic (FRP) jackets and underwater steel reinforced grout for timely bridge piling repairs in Minnesota without dewatering. One of the goals of the project was to determine the current state of practice to this corrosion repair and inspection by researching other projects […]
Artificial intelligence (AI) has revolutionized various areas in departments of transportation (DOTs), such as traffic management and optimization. Through predictive analytics and real-time data processing, AI systems show promise in alleviating congestion, reducing travel times, and enhancing overall safety by alerting drivers to potential hazards. AI-driven simulations are also used for testing and improving transportation […]