Air-entraining admixtures facilitate the development of a system of microscopic air bubbles within concrete during mixing. They increase the freeze-thaw durability of concrete, increase resistance to scaling caused by deicing chemicals, and improve workability. Air entrainment will reduce concrete strength. As a general rule, a 1% increase in the c
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2020-01-01
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Highway Statistics Series: State Statistical Abstracts
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PDF
The data in these State by State Abstracts contain State-submitted data to FHWA on: motor fuel use, driver licensing, vehicle registration, State and local financing, land area, population, and vehicle miles of travel.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2020-01-01
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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
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RwD crashes remain a major emphasis area for Georgia. To address this crash type, one of the solutions Georgia Department of Transportation (GDOT) investigated and implemented is installing high friction surface treatment (HFST) at curves where roadway departure crashes have the greatest likelihood of occurring. In order to deploy the HFST treatmen
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2020-01-01
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Highway Statistics Series: State Statistical Abstracts
|
PDF
The data in these State by State Abstracts contain State-submitted data to FHWA on: motor fuel use, driver licensing, vehicle registration, State and local financing, land area, population, and vehicle miles of travel.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2020-01-01
|
Highway Statistics Series: State Statistical Abstracts
|
PDF
The data in these State by State Abstracts contain State-submitted data to FHWA on: motor fuel use, driver licensing, vehicle registration, State and local financing, land area, population, and vehicle miles of travel.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2020-01-01
|
Highway Statistics Series: State Statistical Abstracts
|
PDF
The data in these State by State Abstracts contain State-submitted data to FHWA on: motor fuel use, driver licensing, vehicle registration, State and local financing, land area, population, and vehicle miles of travel.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2020-01-01
|
Highway Statistics Series: State Statistical Abstracts
|
PDF
The data in these State by State Abstracts contain State-submitted data to FHWA on: motor fuel use, driver licensing, vehicle registration, State and local financing, land area, population, and vehicle miles of travel.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2020-01-01
|
Highway Statistics Series: State Statistical Abstracts
|
PDF
The data in these State by State Abstracts contain State-submitted data to FHWA on: motor fuel use, driver licensing, vehicle registration, State and local financing, land area, population, and vehicle miles of travel.
United States. Department of Transportation. Federal Highway Administration
2020-01-01
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PDF
In 2015, North Carolina was among the States that reported the highest percentage of speeding related fatalities; 40 percent of traffic fatalities in North Carolina involved a speeding vehicle.1 To tackle this problem, North Carolina safety stakeholders partnered with the Federal Highway Administration (FHWA) to develop a Speed Management Action Pl
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2020-01-01
|
Highway Statistics Series: State Statistical Abstracts
|
PDF
The data in these State by State Abstracts contain State-submitted data to FHWA on: motor fuel use, driver licensing, vehicle registration, State and local financing, land area, population, and vehicle miles of travel.
United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure
2020-01-01
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PDF
Plan and profiles, cross sections, and details along with specifications have been the source of design and construction information for decades. Whether printing to paper or maintaining them virtually in a portable document (PDF), operation is occurring at level zero. Project data are contained in a variety of different documents where filtering a
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Crashes occur because of complex interactions between multiple variables, including driver behavior, environmental context, roadway design, and vehicle dynamics. Datadriven safety analysis (DDSA) models help State and local agencies quantify safety data, identify high-risk roadway features, and predict the effects of proposed safety measures. Howev
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United States. Department of Transportation. Federal Highway Administration
2020-01-01
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PDF
Intersections represent one-quarter of all traffic fatalities and one-half of all traffic injuries. Each intersection project is an incremental opportunity to enhance safety and take one more step toward zero deaths and serious injuries on our Nation’s roads. Using a performance-based approach, Intersection Control Evaluation (ICE) is used to scree
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Highway construction projects produce massive amounts of valuable data. Historically, information such as materials tickets and as-built plans were communicated via paper. Today’s transportation agencies are improving on these paper processes by integrating them into electronic and digital workflows. Electronic ticketing (e-Ticketing) improves the
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2020-01-01
|
Highway Statistics Series: State Statistical Abstracts
|
PDF
The data in these State by State Abstracts contain State-submitted data to FHWA on: motor fuel use, driver licensing, vehicle registration, State and local financing, land area, population, and vehicle miles of travel.
Pedestrian impact testing of the U.S. vehicle fleet by the National Highway Traffic Safety Administration has provided snapshots of the performance of evolving technologies that protect a pedestrian’s head in head-to-hood impacts. One of the recent evolving technologies is the introduction of active hood systems that pop up upon contact with a pede
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United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure
2020-01-01
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PDF
Since the day of punch cards that ended up in a pile on the floor or disks that ended up blank after an encounter with a magnet, we have welcomed technological advancements of data storage. The USB and external drives have taken the place of optical disks, but too often they are the carriers of malware and viruses. Now, agencies are torn between th
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The Federal Lands Transportation Program (FLTP) was established under the Moving Ahead for Progress in the 21st Century Act (MAP-21) and continued under the Fixing America’s Surface Transportation Act (FAST), (23 USC § 203) to improve transportation facilities for the following Federal Land Management Agency (FLMA) partners: National Park Service (
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2020-01-01
|
Highway Statistics Series: State Statistical Abstracts
|
PDF
The data in these State by State Abstracts contain State-submitted data to FHWA on: motor fuel use, driver licensing, vehicle registration, State and local financing, land area, population, and vehicle miles of travel.
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