This research summary report provides a description of research carried out to improve the understanding of the mechanisms of hydration of portland cement in complex and simple mixtures; develop analytical methods to directly observe hydration processes in real time; and develop and validate improved computer models to design optimal concrete compo
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2019-04-01
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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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This document summarizes the activities undertaken by members of the National Coalition on Truck Parking Working Groups. The Working Groups met to develop products that highlight best practices related to parking capacity, technology and data, funding, finance and regulations, and State, regional, and local government coordination. The activities a
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Transportation agencies receiving federal-aid must conduct biennial Work Zone Process Reviews (WZ PRs) to analyze their current policies and procedures for managing work zone traffic operations (23 CFR 630). In an environment of constrained resources, agencies are pressed to find the time for comprehensive self-evaluation or to conduct broad review
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Engagement from all stakeholders helps a STIC thrive. These dynamic partnerships rely on effective collaboration so that members of the transportation community in each State can brainstorm, exchange information, and generate new ideas that benefit their organizations and communities. Strategically aimed communication can help reach this goal.
Every Day Counts (EDC) is a Federal Highway Administration program to advance a culture of innovation in the transportation community in partnership with public and private stakeholders. FHWA coordinates rapid deployment of proven strategies and technologies to shorten the project delivery process, enhance roadway safety, reduce congestion, and imp
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Microsimulation is the modeling of individual vehicle movements on a second or sub-second basis for the purpose of assessing the traffic performance of highway and street systems, transit, and pedestrians. Microsimulation analyses are increasingly visible and important – fostered both by the continued evolution of microsimulation software capabilit
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The Federal Highway Administration's (FHWA's) Fostering Multimodal Connectivity Newsletter is intended to provide transportation professionals with real-world examples of ways that multimodal transportation investments promote economic revitalization, provide access to jobs, and achieve safer communities through support of accelerated project deliv
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This Tech Brief focuses on enhancing the fresh and/or hardened properties of paving grade concrete through the use of chemical admixtures. The chemical admixtures most commonly used in paving concrete are discussed in detail, specifically those used to entrain air, reduce water, and modify set. Other admixtures that are occasionally used in paving
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This report is intended to guide the Texas A&M Transportation Institute Connected Vehicle Pilot Deployment (TTI CVPD) Evaluation Team in collecting information to assess the stakeholder acceptance of the New York City Connected Vehicle Pilot Deployment. It contains the protocols and procedures the TTI CVPD Evaluation Team will use to conduct the St
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This report is intended to guide the Texas A&M Transportation Institute Connected Vehicle Pilot Deployment (TTI CVPD) Evaluation Team in collecting information to assess the stakeholder acceptance of the Tampa Hillsborough Expressway Authority Connected Vehicle Pilot Deployment. It contains the protocols and procedures the TTI CVPD Evaluation Team
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United States. Federal Highway Administration. Office of Planning, Environment, and Realty
2019-03-21
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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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United States. Federal Highway Administration. Office of Planning, Environment, and Realty
2019-03-07
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PDF
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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United States. Department of Transportation. Federal Highway Administration. Office of Operations
2019-03-01
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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.
This project aims to develop PedPal, a mobile app that enables pedestrians with disabilities to more safely and more efficiently cross signalized intersections. The proposed technology concept is a smart phone app that interacts directly with a real-time, adaptive traffic signal control system at the intersection via 3G/4G wireless ration technolog
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The movement of superheavy loads (SHLs) on the Nation's highways is an increasingly common, vital economic necessity for many important industries, such as chemical, oil, electrical, and defense. SHL hauling units are much larger in size and weight than standard trucks. SHL gross vehicle weights may be in excess of a few million pounds, so they oft
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This report is intended to guide the Texas A&M Transportation Institute Connected Vehicle Pilot Deployment (TTI CVPD) Evaluation Team in collecting information to assess the stakeholder acceptance of the Wyoming Connected Vehicle Pilot Deployment. It contains the protocols and procedures the TTI CVPD Evaluation Team will use to conduct the Stakehol
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This report summarizes the Data-Driven Safety Analysis (DDSA) Applications in Performance-Based Project Development peer exchange hosted by Federal Highway Administration (FHWA) and the Highway Safety Manual Implementation Pooled Fund, including an overview of the peer exchange, key takeaways, overview of the presentations and resulting discussion,
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In 2010, FHWA developed a new systematic, data-driven, risk-based oversight process for monitoring State compliance with the National Bridge Inspection Standards (NBIS). Based on the success of that process, FHWA has now developed a similar process for the recently implemented National Tunnel Inspection Standards (NTIS) required by 23 U.S.C. 144(h)
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