United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2019-02-01
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Advancements in the science of concrete materials have led to the development of a new class of cementitious composites called ultra-high performance concrete (UHPC). UHPC exhibits mechanical and durability properties that make it ideal for use in new solutions to pressing concerns about highway-infrastructure deterioration, repair, and replacement
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This report documents the state of the practice among State Departments of Transportation (DOTs) and Metropolitan Planning Organizations (MPOs) regarding how these agencies are considering and addressing environmental justice concerns in their transportation planning and programming process. Based on a detailed scan of publicly available planning a
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Since 1995, a Science and Technology Implementing Arrangement between the United States Department of Transportation’s (USDOT) Federal Highway Administration (FHWA) and the Republic of Korea’s Ministry of Land, Infrastructure and Transport (MOLIT) has made cooperation between these two governmental agencies a priority. The arrangement has led to an
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This document is a resource to help transportation practitioners consider and make informed decisions about tradeoffs relating to the selection of bikeway types. This report highlights linkages between the bikeway selection process and the transportation planning process. This guide presents these factors and considerations in a practical process o
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The use of the term “preservation” for concrete pavements is somewhat of a misnomer in that many preservation treatments are actually stop-gap measures used to address visible signs of deterioration in the existing pavement. The treatments address the symptoms of the problem but may not directly address the underlying causes of the distress, which
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The New Mexico Department of Transportation (NMDOT) rehabilitated about 8.7 miles (milepoint 0.448 to milepoint 9.168) of New Mexico State Road 136 (NM 136) in Dona Ana County, just northwest of El Paso, TX. This four-lane arterial roadway serves as a connection between the Santa Teresa Port of Entry and Interstate 10 (I-10) near the Texas State Li
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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.
The Tampa Hillsborough Expressway Authority (THEA) Connected Vehicle (CV) Pilot Deployment Program is part of a national effort to advance CV technologies by deploying, demonstrating, testing and offering lessons learned for future deployers. The THEA CV Pilot is developing a suite of CV applications, or apps, that utilize vehicle-to-infrastructure
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The Tampa Hillsborough Expressway Authority (THEA) Connected Vehicle (CV) Pilot Deployment Program is developing a suite of CV applications, or apps, that utilize vehicle-to-infrastructure (V2I), vehicle-to-vehicle (V2V) and Vehicle to everything (V2X) communication technology to reduce traffic congestion, improve safety, and decrease emissions. Th
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Value capture presents an opportunity to meet funding challenges for transportation projects at a local and State level. Value capture refers to a set of techniques that take advantage of increases in property values, economic activity, and growth linked to infrastructure investments to help fund current or future improvements.
The Smart Travel Concierge System includes a series of travel readiness assessments designed to be used by individuals with cognitive disabilities and other users to self-assess their knowledge and experience in preparation for engaging in the use of fixed route public transit systems. This document provides an overview of the process used to creat
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United States. Federal Highway Administration. Office of Planning, Environment, and Realty
2019-01-10
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This digest shares the latest information from a range of Federal and non-Federal sources, addressing transportation and its relationship to the human environment. Through this information exchange, FHWA hopes to foster dialogue at all levels and continue to further the state of the practice on these important topics in support of safety; infrastru
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The Moving Ahead for Progress in the 21st Century (MAP-21) and Fixing America’s Surface Transportation (FAST) Acts promote the use of performance-based decisions for managing the nation’s highway system. Under the legislation, State Departments of Transportation (DOTs) are required to develop and implement a risk-based Transportation Asset Manageme
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This report describes the data management plan that the TTI Connected Vehicle Pilot Deployment (CVPD) Evaluation Team, as the Independent Evaluator, plans to follow in conducting its evaluation of the New York City CVPD. This plan describes the data that the TTI CVPD Evaluation Team plans to use to identify operational scenarios to be examined in t
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United States. Department of Transportation. Federal Highway Policy & Guidance Center
2019-01-01
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Memoranda & Guidance: Guidance
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This Technical Advisory contains guidance and recommendations relating to the design and construction of joints in jointed plain concrete pavements (JPCP).
The movement of superheavy loads (SHLs) has become more common over the years since it is a vital necessity for many important industries, such as chemical, oil, electrical, and defense. SHL hauling units are much larger in size and weight compared to standard trucks. SHL gross vehicle weights may be in excess of a few million pounds, so they often
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Changeable-message signs (CMSs), also referred to as variable- or dynamic-message signs, are programmable signs used on roadways throughout the United States. Because they provide relevant, current information safely, CMSs are among the most popular methods of disseminating information about nonrecurring events to travelers.
While several proven safety countermeasures and strategies exist to mitigate roadway departure crashes on horizontal curve sections of two-lane rural highways, there are several countermeasures or strategies that have yet to be proven via a rigorous safety evaluation. The purpose of this research was to identify several of these strategies or count
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