Geometric design based on performance is a renewed approach to project decision making that specifically addresses the purpose and needs of projects by providing design flexibility. Transportation practitioners need resources to evaluate roadway design based on safety performance. This research project used the Roadway Information Database and the
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This study explored the impact of work zone infrastructure on driver response when transitioning vehicle control from SAE International (SAE) Level 2 automation to the human driver (SAE 2014). Study participants drove a test vehicle at about 50 mph on a four-lane, undivided, closed-track highway. The participants drove two passes through a work zon
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Engineers and bridge owners have widely used nondestructive evaluation (NDE) methods for the assessment and inspection of reinforced concrete structures. The creation of reference specimens featuring structural defects commonly encountered in the field is crucial for enhancing understanding of NDE technologies and certifying NDE service providers.
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This study collected and processed accurate trajectory datasets capable of characterizing human-automated vehicle interactions under a diverse set of scenarios in highway and city environments. Multiple methods were utilized to collect data: fixed location aerial videography, moving aerial videography, and infrastructure-based videography. Fixed lo
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This report presents a series of aids that summarize key features of 20 forms of alternative intersection designs. These aids will help practitioners become familiar with new forms—or variations of forms with which the design is familiar—and guide practitioners to additional resources. The report also includes an analysis of connected and automated
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Traffic professionals need to consistently evaluate all alternative intersection configurations and document intersection operational benefits. This information is vital to roadway designers who need to make informed decisions on whether to select a traditional or alternative intersection design and potentially choose among competing alternative in
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This report documents the findings from an international study on turbo roundabouts undertaken as part of the Federal Highway Administration’s Office of International Program’s Global Benchmarking Program. The study was motivated by the growing domestic interest in and installation of turbo roundabouts to combat the disproportionate number of prope
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United States. Department of Transportation. Federal Highway Administration. Office of Operations
2024-05-01
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National Travel Time Dashboard: Interstate Highways
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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
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United States. Department of Transportation. Federal Highway Administration
2024-04-30
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PDF
In the 1960s, during a major national expansion of the United States Interstate Highway System, the Minnesota Highway Department (now Minnesota Department of Transportation (MnDOT)) routed I-94 through the heart of the Twin Cities of Minneapolis and St. Paul, Minnesota. As was the case in many cities where construction of an interstate highway and
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-04-24
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Special Issue - Weekly Motor Fuel Report
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PDF
The Gasoline Product Supplied report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Administration
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United States. Department of Transportation. Federal Highway Administration
2024-04-24
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PDF
Change orders are the traditional mechanism used to address unforeseen conditions that arise during construction. Unfortunately, when unexpected traffic safety concerns are identified during the project, the time and labor required for processing and approving a change order may impede efforts to address the safety issues quickly and efficiently. E
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-04-23
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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
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United States. Department of Transportation. Federal Highway Administration
2024-04-22
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PDF
A 1931 Graham-Paige Vehicle once used by the US Bureau of Public Roads (BPR), currently the Federal Highway Administration, is now in the possession of the Western Federal Lands Highway Division (WFL) in Vancouver, Washington.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-04-17
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Special Issue - Weekly Motor Fuel Report
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PDF
The Gasoline Product Supplied report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Administration
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United States. Department of Transportation. Federal Highway Administration
2024-04-17
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PDF
The City of Denver is funding shared e-bike systems in neighborhoods with limited and unreliable transit access to advance its climate and equity goals. Voters created a local $40 million per year Climate Protection Fund (CPF) financed by a .25 percent local sales tax to fund climate initiatives, including a shared e-bike library in northeast Denve
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-04-10
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Special Issue - Weekly Motor Fuel Report
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PDF
The Gasoline Product Supplied report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Administration
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-04-03
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Special Issue - Weekly Motor Fuel Report
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PDF
The Gasoline Product Supplied report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Administration
...
United States. Department of Transportation. Federal Highway Administration
2024-04-01
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PDF
For 25 years, National Work Zone Awareness Week (NWZAW) has heralded the start of the spring construction season. This April, the Federal Highway Administration (FHWA) and its stakeholders are sponsoring activities to bring nationwide attention to this topic. This week is an annual reminder that work zone safety and mobility for all road users—incl
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United States. Department of Transportation. Federal Highway Administration
2024-04-01
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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.
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