The Federal Highway Administration's Traffic Noise Model (TNM) version 3.2 was released in January 2024. The software updates in this version of TNM were focused on integrating the capabilities of the Roadway Construction Noise Model version 2.0 into the TNM 3.1 architecture. Additional bug fixes and model improvements were also included. This memo
...
This research leveraged the Second Strategic Highway Research Program naturalistic driving study (NDS) datasets (https://insight.shrp2nds.us/) to improve understanding of driving behavior, particularly car-following behavior from passenger vehicles on freeway segments under good weather and daytime conditions, and proposed a calibration process for
...
United States. Department of Transportation. Federal Highway Administration
2024-04-01
|
PDF
Sustainability has become a focus of cement production. Cement is second to water as humanity’s most used substance. According to U.S. Environmental Protection Agency data, the manufacture of cement accounts for 1.25 percent of U.S. carbon emissions.(1) As a result, the desire for low-carbon cement has increased. The Federal Highway Administration’
...
Traffic management systems (TMSs) help transportation agencies manage roadway capacity as well as traffic demand to deliver safe, reliable, and efficient travel. As agencies look to actively manage their transportation systems, they turn to various analytic techniques—often embedded in decision support methods and tools—that help them better monito
...
Traditional traffic monitoring sensors on roadways provide valuable information about travel demands and patterns. However, they do not capture detailed data on how vehicles are driven and interact with the road and the environment. To address this gap, the Office of Highway Policy Information in the FHWA has explored connected vehicle (CV) data fr
...
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-04-01
|
PDF
Traffic Volume Trends is a monthly report based on hourly traffic count data reported by the States. These data are collected at approximately 5,000 continuous traffic counting locations nationwide and are used to estimate the percent change in traffic for the current month compared with the same month in the previous year. Estimates are re-adjuste
...
United States. Department of Transportation. Federal Highway Administration
2024-04-01
|
PDF
This fact sheet highlights the emerging In-Situ Scour Testing Device (ISTD) technology, that uses an innovative erosion head that more accurately measures soil erosion resistance, resulting in more cost-effective foundation designs and greater reliability and resiliency in bridge performance.
This summary report highlights the purpose of the workshop was to identify the maturity, piloting techniques, and lessons from deployments of novel data collection and modeling methods in managing roadway flood hazards. Organizers wanted participants to learn how to leverage engineering, computer and climate science, and social science expertise fo
...
This report aids public agencies in planning and assessing their traffic management system (TMS) to gain insight into their capabilities, performance, and potential areas for enhancements. The report provides information about opportunities to integrate existing TMS capabilities, performance, resources needed for improvements, and resources needed
...
The purpose of this Primer is to orient transportation practitioners to the principles and practices of Operations Performance Measures and Management (OPMM). OPMM aims to support continuous improvement in the practice of Transportation Systems Management and Operations (TSMO), a set of strategies that focus on operational strategies that improve t
...
This Tech Brief focuses on Paver Mounted Thermal Profile (PMTP) systems, Intelligent Compaction (IC), Dielectric Profiling Systems (DPS), and Veta software. The intent of this tech brief is to summarize these technologies, their capabilities, shortfalls, and appropriate usage at the present time to support QA while also meeting the Title 23 Code of
...
United States. Department of Transportation. Federal Highway Administration
2024-04-01
|
PDF
Minnesota Department of Transportation’s (MnDOT’s) Digital As-Builts (DABs) journey started over a decade ago. Since then, MnDOT has developed a strategic plan to improve asset data that uses DABs as one important data source. Construction data is essential in managing transportation assets. Asset type, material, location, cost, material testing re
...
The purpose of this Tech Brief is to present random sampling practices and describe sample security measures for construction materials. The document is intended for highway agency and contractor engineers.
This report provides an overview of issues and topics to consider when transitioning from a current traffic management system (TMS) to a new version, replacing a current TMS with a new one, replacing a subsystem of a TMS, or adding new subsystems or capabilities to an existing TMS. The report outlines the types of technical and nontechnical conside
...
United States. Department of Transportation. Federal Highway Administration
2024-04-01
|
PDF
This fact sheet highlights the emerging in-situ scour testing device (ISTD) technology which uses an innovative erosion head that more accurately measures soil erosion resistance, resulting in cost-effective foundation designs and increased reliability and resiliency in bridge performance.
United States. Department of Transportation. Federal Highway Administration. Office of Operations
2024-04-01
|
National Travel Time Dashboard: Interstate Highways
|
PDF
The Monthly Urban Congestion Report (UCR) provides a state-level overview of traffic congestion and reliability trends on Interstate highways. Published every month, the report compares data from the most recent month with the same month in the previous year. It uses travel time data from the Federal Highway Administration’s National Performance Ma
...
This document is a technical summary of the Georgia Institute of Technology report, Evaluation of LargeFormat Metallic Additive Manufacturing (AM) for Steel Bridge Applications: Final Report of Tensile, Impact, and Fatigue Testing Results (GT-SEMM-23-01), available at https://rosap.ntl.bts.gov/view/dot/72366[1]. This report is a deliverable from a
...
United States. Department of Transportation. Federal Highway Administration
2024-04-01
|
PDF
Every Day Counts (EDC) is the Federal Highway Administration’s (FHWA's) program to advance a culture of innovation in the transportation community in partnership with public and private stakeholders. Through this State-based effort, FHWA coordinates rapid deployment of proven strategies and technologies to shorten the project delivery process, enha
...
United States. Department of Transportation. Federal Highway Administration
2024-04-01
|
PDF
This fact sheet highlights the comprehensive plan which embraces the Safe System Approach. This includes five elements that need to be addressed to achieve zero traffic deaths: safe road users, safe vehicles, safe speeds, safe roads, and post-crash care. In line with this overarching goal, Federal Highway Administration's (FHWA’s) Exploratory Advan
...
United States. Department of Transportation. Federal Highway Administration
2024-04-01
|
FHWA R&T Now
|
PDF
A newsletter about research, development, and technology (RD&T) at the U.S. Department of Transportation’s (USDOT) Federal Highway Administration (FHWA).
Links with this icon indicate that you are leaving a Bureau of Transportation
Statistics (BTS)/National Transportation Library (NTL)
Web-based service.
Thank you for visiting.
You are about to access a non-government link outside of
the U.S. Department of Transportation's National
Transportation Library.
Please note: While links to Web sites outside of DOT are
offered for your convenience, when you exit DOT Web sites,
Federal privacy policy and Section 508 of the Rehabilitation
Act (accessibility requirements) no longer apply. In
addition, DOT does not attest to the accuracy, relevance,
timeliness or completeness of information provided by linked
sites. Linking to a Web site does not constitute an
endorsement by DOT of the sponsors of the site or the
products presented on the site. For more information, please
view DOT's Web site linking policy.
To get back to the page you were previously viewing, click
your Cancel button.