United States. Department of Transportation. Federal Highway Administration
2024-03-01
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PDF
This document contains the editorial guidelines for the Second Annual Student Writing Competition, held by Public Roads. It's a contest that encourages high school, undergraduate, and graduate students interested in or actively pursuing STEM majors to demonstrate their knowledge by writing an article that relates to the transportation industry.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-02-28
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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. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements
2024-02-26
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ZIP
The Profile Viewer and Analyzer (ProVAL) is a software that was initially developed to provide a means to view and analyze pavement profiles efficiently and robustly, as part of the Federal Highway Administration (FHWA) smoothness initiative. ProVAL imports, displays, and analyzes the characteristics of pavement profiles from many different sources
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-02-22
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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. Federal Highway Administration. Office of Bridges and Structures
2024-02-21
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ZIP
The FHWA Hydraulic Toolbox Program is a stand-alone suite of calculators that performs routine hydrologic and hydraulic analysis and design computations. Specific calculators address: Rational Method hydrology, channels, channel linings, weirs, curb and gutter sections, storm drain inlets, detention basins, bridge scour, riprap countermeasures, sed
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-02-14
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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
2024-02-09
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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. Office of Highway Policy Information
2024-02-09
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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. Office of Highway Policy Information
2024-02-07
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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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This study explored the impact of connected vehicle alert messages on drivers’ responses to emergency vehicles. The participants drove a simulated vehicle either with or without SAE Level 2 automation (SAE International 2021). During the drive, an emergency vehicle approached the participant from behind. The participants’ vehicle connectivity was m
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Inverted pavement (IP) consists of a lower modulus layer, typically an unbound crushed stone base, sandwiched between a cement-stabilized layer at the bottom and a thin asphalt concrete (AC) surfacing. This type of pavement is extensively used in South Africa, where it has proven to be an effective, low-cost solution for high-trafficked roads. The
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Six States from the Midwest U.S. gathered for a peer exchange and discussion on implementation activities to support Balanced Mix Design (BMD). The peer exchange was sponsored by the Federal Highway Administration (FHWA). The six States met to assess the state-of-practice for the technology, tools, and techniques in designing, verifying, and accept
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United States. Department of Transportation. Federal Highway Administration. Offices of Research, Development, and Technology
2024-02-01
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PDF
The primary objective of the study was to investigate how light-vehicle drivers' knowledge of partially automated truck platooning and how different platoon sizes (two- or three-truck platoon) and gap distances (0.6, 0.9, or 1.2 s) between the trucks influence the behavior of light-vehicle drivers entering, exiting, or traveling in the through lane
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The ability to fully quantify the expected safety benefits of Complete Streets transformations using crash-based, data-driven safety analysis (DDSA) methods such as those in the Highway Safety Manual (AASHTO 2010) is limited. The lack of crash modification factors (CMFs) for many Complete Streets treatments is a primary reason for this limitation.
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This fact sheet highlights the research's team holistic framework to address the challenges in large-scale predictive traffic incident management (TIM). The research can be summarized as interconnecting subtask models that accomplish the following: Predict traffic speed. Detect traffic anomalies. Approximate traffic flow physics. Control traffic. E
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Asphalt rubber gap-graded mixtures are durable pavement layers with resistance to reflective cracking, rutting, and oxidation and have frictional characteristics due to the gapped grading of the aggregate.
United States. Department of Transportation. Federal Highway Administration
2024-02-01
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PDF
This fact sheet provides an overview of the role of the Lead Agency - State Department of Transportation (DOT), that oversees each Transportation Pooled Fund (TPF) study. This role is an opportunity to guide and shape national research and innovation collaboration efforts. For a State-led TPF study, a State DOT serves as the lead agency, administer
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Nine States from the Rocky Mountain West U.S. gathered for a peer exchange and discussion on implementation activities to support Balanced Mix Design (BMD). The peer exchange was sponsored by the Federal Highway Administration (FHWA). The nine States met to assess the state-of-practice for the technology, tools, and techniques in designing, verifyi
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The objective of this study is to improve the quality control of steel bridge fabrication by expanding the available nondestructive testing options beyond conventional ultrasonic testing (UT) and radiographic inspection methods. The primary focus of this research is to assess the acceptability of phased array ultrasonic testing (PAUT) as an alterna
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The North Carolina Department of Transportation (NCDOT) plans to replace two highway bridges on I–6064/I–95 over the Lumber River in Lumberton, NC. Hydraulic scour analysis of the planned bridge replacement resulted in deep scour depths, which NCDOT believed were excessive due to subsurface layers of cohesive soil that existed across the bridge sit
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