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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 […]
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 Systemic Safety User Guide is an update to the Federal Highway Administration’s Systemic Safety Project Selection Tool. The Guide presents a process for incorporating systemic planning into the safety management process. The chapters describe how agencies can identify focus crash types, facility types, and risk factors; screen and prioritize candidate locations using risk; identify […]
This report reviews and assesses driver monitoring systems (DMS) and related technologies for alcoholimpairment detection and SAE International Level 2 partial driving automation systems. For the review oftechnologies to identify driver alcohol impairment, 331 technologies were reviewed. The systems were classifiedas physiology-based, tissue spectroscopy-based, camera-based, vehicle kinematics-based, hybrid, and patent-stage systems. A key focus was […]
Use of DOT-compliant motorcycle helmets was 73.8 percent1 in 2023, not statistically different at the 0.05 level from 66.5 percent in 2022. The 2023 estimate is the highest ever recorded. This result is from the National Occupant Protection Use Survey (NOPUS), the only survey that provides nationwide, probability-based, observed data on motorcycle helmet use in […]
This report documents the effort by the Federal Highway Administration (FHWA) Office of Safety and Operations Research & Development and the FHWA Office of Operations to assess current data sources, to compile existing data, to review gaps, and to propose a data collection strategy that will start to quantify the occurrence of responder struck-by crashes. […]
Traffic fatalities in the United States decreased by 1.7 percent from 2021 to 2022 (43,230 to 42,514). The fatality rate per 100 million vehicle miles traveled (VMT) was 1.33 in 2022, ranging from a high of 1.85 to a low of 0.69 among States. Read all findings here.