Distress has recently been observed in the joints of some concrete pavements, primarily in the wet-freeze states. This distress often begins in longitudinal joints, followed by transverse joints and results in the significant loss of material from the joint area. Although it may only affect approximately 10% of the concrete pavements system-wide, i
...
Clark County, Washington, has implemented Automated Traffic Signal Performance Measures (ATSPM) as part of the overarching Signal Timing, Evaluation, Verification, and Enhancement (STEVE) program.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2018-12-01
|
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. Office of Research, Development, and Technology
2018-12-01
|
Public Roads
|
PDF
Public Roads is the quarterly magazine of the Federal Highway Administration (FHWA). Reading Public Roads is the easiest way to keep up-to-date on developments in federal highway policies, programs, and research and technology. More specifically, the magazine "covers" advances and innovations in highway/traffic research and technology, critical nat
...
The Federal Highway Administration (FHWA) Long-Term Bridge Performance (LTBP) program's web portal, LTBP InfoBridge™, is a centralized gateway to bridge performance data and information. It provides an efficient interface with visualization capabilities enabling users to perform bridge data analytics. The following describes some of InfoBridge modu
...
United States. Department of Transportation. Federal Highway Administration. Office of Safety
2018-12-01
|
PDF
The Federal Highway Administration’s (FHWA) Safety Compass newsletter aims to increase highway safety awareness and to provide resources to the highway safety community to help save lives. The newsletter is published three times a year, and includes articles on safety-focused offerings from FHWA, other DOT modes; our State, Local, and Tribal partne
...
United States. Federal Highway Administration. Exploratory Advanced Research Program
2018-12-01
|
PDF
One of the ongoing problems in the construction of bridge structures and highway pavements is that engineers must always grapple with the inevitable deterioration of these structures. Bridges and pavements must bear heavy cars and trucks over a sustained period of time. They also face weather conditions, such as rain and snow or extreme heat and co
...
The Federal Highway Administration's Long-Term Bridge Performance (LTBP) program issues a quarterly newsletter to inform you about the progress and activities of the program. Brief updates on progress in important program activities are provided, including data collection, data releases, new products and publications, and data analysis.
Model Systems Engineering Documents for Traffic Signal Systems is intended to provide guidance for professionals involved in developing systems engineering documents covering the evaluation, selection and implementation of traffic signal systems.
The Tampa Hillsborough Expressway Authority (THEA) Connected Vehicle (CV) Pilot Deployment Program is intended to develop a suite of applications that utilize vehicle to infrastructure (V2I) and vehicle to vehicle (V2V) communication technology to reduce traffic congestion, improve safety, and decrease emissions. These CV applications support a fle
...
United States. Federal Highway Administration. Exploratory Advanced Research Program
2018-12-01
|
PDF
When people hear the phrase “artificial intelligence,” they might think of robots and machines that perform efficiently and quickly some of the functions that humans do, such as translating signs in a foreign language, or of robotic dogs that comfort older adults. When defined within the context of the transportation sector, artificial intelligence
...
The movement of superheavy loads (SHLs) has become more common over the years, since it is a vital necessity for many important industries, such as chemical, oil, electrical, and defense. SHL hauling units are much larger in size and weight compared to standard trucks. SHL gross vehicle weights may be in excess of a few million pounds, so they ofte
...
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2018-12-01
|
PDF
On a monthly basis, each State is required to report to the Federal Highway Administration (FHWA), the amount of gallons taxed by that state. This data is analyzed and compiled by FHWA staff. The data on the amount of on-highway fuel use for each State is then used to attribute federal revenue to each State. Yearly, the FHWA, Office of Policy, prov
...
Missouri. Department of Transportation. Construction and Materials Division
2018-12-01
|
PDF
Chip seals have been widely used as a pavement maintenance surface treatment due to its competitive cost and construction time. Recently, the research team developed a rubberized chip seal where natural aggregate is replaced with crumb rubber obtained from recycled tires. During this study, laboratory chip seal specimens and a field chip seal secti
...
With increased congestion across the Nation’s roadways, transportation agencies, universities, and research institutions are testing new approaches and implementing programs to cause travelers to shift their behavior to alleviate congestion and proactively and dynamically manage the transportation system. Using behavioral economic theories, agencie
...
Maricopa County plays a leadership role in the 24-member consortium called the AZTech Regional Partnership in Arizona. Members of the partnership represent organizations in the Phoenix metropolitan area and work together under the shared mission of providing seamless transportation across jurisdictional boundaries. The AZTech Regional Partnership i
...
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.