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The use of NDE and structural monitoring (SM) technologies for assessing bridge deck condition is becoming increasingly popular due to cost savings and extended service life from timely interventions. Traditional assessment relies on visual and sounding surveys, but NDE methods, such as those based on physical principles of stress-wave propagation, electromagnetic properties, and electrochemical and […]
NHTSA has recently issued a projection report of traffic fatalities and the fatality rate per 100 million vehicle miles traveled (VMT) for the first half of 2024 (Early Estimate of Motor Vehicle Traffic Fatalities the First Half (Jan–Jun) of 2024, Report No. DOT HS 813 633). That report shows an estimated 18,720 people died in […]
The BTS Pocket Guide to Transportation is a quick reference guide that provides transportation statistics at your fingertips. It provides key information and highlights major trends on the U.S. transportation system. Intended as a compact reference, the Pocket Guide supports the BTS mission to create, manage, and share transportation statistical knowledge. Read the full article […]
This report summarizes the Arterial Management Survey findings of the 2023 Intelligent Transportation Systems (ITS) Deployment Tracking Survey. From 1999 to 2020, the ITS Joint Program Office (JPO) used the ITS Deployment Tracking Survey on an ongoing basis to collect information about ITS deployment in a subset of metropolitan areas across the United States by […]
Changeable message signs (CMSs) serve as safe, accessible sources of relevant travel information. Previous research has provided insight into the potential value of CMSs as sources of traveler information. However, a gap remains in efforts to document the information and the messaging that effectively promote desired changes in traveler behavior to improve safety and the […]
There was a small decline in motor vehicle crash fatalities in the United States in 2023 relative to 2022. However, each death represents an unacceptable human, societal, and economic cost. While causes of motor vehicle fatalities are complex, risky driving behaviors such as speeding, alcohol involvement, and non-seat belt use are linked to tens of […]
The evolving landscape of climate conditions leads to more frequent and intense natural hazard events, affecting low-volume roads on federal lands. Despite the existence of known maintenance solutions to reduce these impacts, the limited funding availability hinders the implementation of these solutions at scale. This funding limitation is compounded by the absence of necessary data […]
The evolving landscape of climate conditions leads to more frequent and intense natural hazard events, affecting low-volume roads on federal lands. Despite the existence of known maintenance solutions to reduce these impacts, the limited funding availability hinders the implementation of these solutions at scale. This funding limitation is compounded by the absence of necessary data […]
The safety of roadside responders is often placed in jeopardy by the potential dangers posed by passing vehicles. To develop and implement effective protection measures for roadside responders, comprehensive safety data is essential. Traditional methods relying on crash data to identify incidents involving roadside responders, such as struck-by or secondary crashes, provide some information about […]
Advanced vehicle technologies have the potential to improve safety and convenience for drivers; however, in order to realize these benefits, it is important that drivers use the systems appropriately. Past research has documented gaps in drivers’ understanding of how new technology works and when it should be used. It follows that the interplay between a […]