This document is one in a series of technical summaries that accompany the forthcoming Federal Highway Administration report Collection of Data with Unmanned Aerial Systems (UAS) for Bridge Inspection and Construction Inspection.
This document is a technical summary of the Federal Highway Administration report Developing Crash Modification Factors for Adaptive Signal Control Technologies (FHWA-HRT-20-072) (Avelar et al. 2021).
The Indiana Department of Transportation (INDOT) has adopted Superpave5 as a standard specification on pavement construction projects. Superpave5 is an asphalt mix-design method that targets 5 percent air voids during laboratory design and field placement. Starting in 2013, INDOT demonstrated that layers containing the Superpave5 mixes are construc
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Inverted pavement systems are used to optimize material consumption and provide long-term performance benefits. The Louisiana Department of Transportation and Development has successfully adopted inverted pavement systems with demonstrated cost savings and environmental benefits.
The purpose of this document is to describe the research, including simulations and a field experiment, involving the operation of connected and automated vehicles (CAVs) on managed lanes. The scenarios associated with this concept were chosen and designed to facilitate rapid and successful deployment of a solution that is not yet in use. The propo
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Concrete bridge deck overlays have been used in the United States since 1960 to extend the service life of deteriorated concrete bridge decks and improve reliability. Concrete bridge decks with overlays suffer various types of deterioration, so it is necessary to identify and assess the effectiveness of different nondestructive evaluation (NDE) tec
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The purpose of this report is to document a simulation-based case study investigating the effectiveness of SAE J3016 Level 1 automation technology for mitigating or solving existing transportation problems related to congestion, fuel consumption, and emissions.(1) This case study examined the impacts of cooperative adaptive cruise control (CACC) ve
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The United States Department of Transportation is interested in developing individual and consolidated technologies that share safety information between road vehicles, trains, infrastructure, and mobile devices using multiple communications media. The Vehicle-to-Everything (V2X) Hub project was initiated to build a software platform to act as a ne
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This Tech Brief describes the application, design, and construction aspects of Precast Concrete Panel (PCP) Roundabouts for rapid rehabilitation of existing distressed asphalt and jointed concrete roundabouts.
This TechBrief summarizes an exploratory analysis of the AASHTOWare Pavement ME Design™ (PMED) software’s pavement performance predictions. The research team analyzed the sensitivity of PMED outputs to traffic input levels based on data from a sample of Long-Term Pavement Performance (LTPP) program sites. In this TechBrief, MEPDG refers to the meth
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United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2021-03-01
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This white paper outlines, in simple terms, the fundamental concepts associated with the RSI framework. The document leads the reader through the basic process of RSI application and uses simple examples to illustrate how the RSI framework can be used to support investment decisions. Additional references are provided to help implement these concep
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United States. Federal Highway Administration. Center for Accelerating Innovation
2021-03-01
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Innovator, published by the FHWA Center for Accelerating Innovation, advances implementation of innovative technologies and processes in the highway industry. Its audience is transportation professionals in highway agencies, trade and research groups, academia and the private sector, and the driving public.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2021-03-01
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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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The National Performance Management Measures; Assessing Pavement Condition for the National Highway Performance Program provided in Subpart C of 23 CFR Part 490 includes an alternative method to report pavement conditions for Interstate and non-Interstate National Highway System locations where the speed limit is less than 40 mph.(1) This alternate
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United States. Department of Transportation. Federal Highway Administration. Office of Operations
2021-03-01
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Urban Congestion Report (UCR)
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The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2021-02-28
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The Weekly Traffic Volume Report estimates the vehicle miles traveled (VMT) for interstate highways and how the total travel measured by VMT compares with travel that occurred in the same week of the previous year. The VMT is further split into passenger vehicle and truck components. The information gives new insights into the effect on traffic by
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2021-02-26
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The Weekly 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 Adminis
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