This manual is intended to provide a technical resource for engineers responsible for the selection and design of drilled shaft foundations for transportation structures. It is used as the reference manual for use with the three-day National Highway Institute (NHI) training course No. 132014 on the subject, as well as the 10th in the series of FHWA
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High volume fly ash (HVFA) concrete mixtures offer many benefits, including reduced cost, reduced energy content, enhanced environmental sustainability, and improved long-term performance. The aim of "Greatly Increased Use of Fly Ash in Hydraulic Cement Concrete (HCC) for Pavement Layers and Transportation Structures," an Exploratory Advanced Resea
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Successes in Stewardship is a Federal Highway Administration (FHWA) bimonthly newsletter highlighting current best practices in stewardship and environmental review from around the country.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2010-05-01
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FHWA R&T Now
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Federal Highway Administration's FHWA R&T Now is a newsletter containing information and updates about research, technology, and development from the U.S. Department of Transportation, Federal Highway Administration. The newsletter is an electronic newsletter and is updated approximately every other month.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2010-05-01
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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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The Federal Highway Administration (FHWA) established the Carbon Sequestration Pilot Program (CSPP) in 2008 to assess whether a roadside carbon sequestration effort through modified maintenance and management practices is appropriate and feasible for state Departments of Transportation (DOTs) when balanced against ecological and economic uncertaint
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The Transportation Research Board’s (TRB) 2010 Environment and Energy Workshop: Better Delivery of Better Solutions, which will be held June 6-10, 2010 in Raleigh, North Carolina, will commence with a session to discuss research needs in the workshop’s focus area topics: climate change, sustainability, energy, and livability. These four topic areas
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The Volpe Center Acoustics Facility, in support of the Federal Highway Administration (FHWA) has been conducting a study to investigate the effects of using different ground types based on an improved understanding of the characteristics of the ground types defined in FHWA’s Traffic Noise Model (TNM) version 2.5. This study also investigates the ef
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The New Mexico Department of Transportation (NMDOT) rebuilt the Big I interchangein Albuquerque to make it safer and more efficient and to provide better access. The BigI is where the Coronado Interstate (I-40) and the Pan American Freeway (I-25) intersectin Albuquerque, New Mexico. The original Big I was designed to support an averagedaily traffic
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This publication is a resource designed to enable transportation planners and their planning partners to build a transportation plan that includes operations objectives, performance measures, and strategies that are relevant to their region, that reflect the community’s values and constraints, and that move the region in a direction of improved mob
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Speeding, the driver behavior of exceeding the posted speed limit or driving too fast for conditions, has consistently been estimated to be a contributing factor to a significant percentage of fatal and nonfatal crashes. The U.S. Department of Transportation has instituted the Speed Management Strategic Initiative to seek more effective ways to man
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This flyer describes the Road Weather Management Performance Measures that will help the Road Weather Management Program (RWMP) maximize the use of available road weather information and technologies; expand road weather research and development efforts to enhance roadway safety, capacity, and efficiency while minimizing environmental impacts; and
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Today’s transportation professionals are challenged to meet the mobility needs of an increasing population with limited resources. At many highway junctions, congestion continues to worsen. Drivers, pedestrians, and bicyclists experience longer delays and greater exposure to risk. Today’s traffic and safety problems are more complex and complicated
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Under Public Law 109-59, the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU), the Secretary of the U.S. Department of Transportation was directed to conduct a demonstration project in Alaska and Tennessee to study the safety impacts, environmental impacts, and cost effectiveness of different pavemen
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Learning in Progress, NHI's quarterly newsletter, provides updates on new course launches, upcoming Web conference seminars, training programs and events, and NHI policy changes.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2010-04-01
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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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Road building sometimes requires extra care and special design considerations to avoid sensitive properties and treacherous terrain. Larry Adams wrote about his experiences on U.S. Highway Alternate 10, now Idaho 200. While bypassing a steep hillside and dangerous curves, the design also incorporated a bridge over railroad right-of-way that had to
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As partners with the Forest Service, Western Federal Lands Highway Division is often involved in building or improving roads through the rough back country of our national forests. Gaining access to such remote areas, far from other roads or development, sometimes requires alternate means of transportation—and often merits spontaneous action.
United States. Federal Highway Administration. Center for Accelerating Innovation
2010-04-01
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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.
Repairs to underwater bridge elements have been successfully completed for many years. However, the increased age of the nation’s bridges and related structures, as well as the increased emphasis in regular underwater inspection since the revisions to the National Bridge Inspection Standards in 1988 indicates an increased need to perform repairs to
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