United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2018-04-01
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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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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2018-04-01
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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 storm surge and waves generated by Hurricane Katrina caused widespread damage to built infrastructure in coastal Mississippi and neighboring states. A number of coastal bridges and roadways failed during this event. One such bridge in coastal Mississippi was the Henderson Point connector that carries US HWY 90 over railroad tracks and a small t
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Over the past 15 years, advances in technology have led to the development of a variety of different travel demand model designs or frameworks. Agencies now face a complex choice when developing or updating their travel model. The alternatives include both very traditional as well as enhanced trip-based designs, activity-based designs of varying co
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This Geotechnical Engineering Circular (GEC) is intended to provide recommended guidance for the LRFD design, analysis, and testing of laterally loaded deep foundations for transportation facilities. This document applies to deep foundation elements such as driven piles, drilled shafts, micropiles, and continuous flight auger (CFA) piles that are u
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Travel forecasts inherently embody some level of uncertainty as a result of uncertainties around many of the key inputs, simplifications, and statistical methods that are used to derive those forecasts. This uncertainty translates into risks that decisions based on the forecasts will be misguided - either failing to meet objectives or simply not pe
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This How-to guide presents new incremental improvements to trip-based models to enhance the representation of nonhome-based trips. These techniques are designed to be inexpensive enhancements to existing trip-based models that can be implemented quickly in a straightforward manner as part of a model update without requiring the development of a who
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The purpose of this peer exchange was to showcase the Geographic Information System (GIS) applications being used for maintenance purposes across the U.S. and discuss challenges, needs, and issues agencies face in implementing maintenance activities. The Pennsylvania Department of Transportation (PennDOT) agreed to host the peer exchange and demons
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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.
This report summarizes noteworthy presentations and results of a Create-a-FutureTM activity that took place during a scenario planning workshop, hosted by the Metropolitan Transportation Commission/Association of Bay Area Governments, on April 23-24, 2018, in San Francisco, CA. The Federal Highway Administration (FHWA) sponsored this event as part
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The FHWA Computation Procedure for the Pavement Condition Measures presents the steps for Federal Highway Administration (FHWA) to compute pavement condition measures for the purpose of determining: (1) the minimum Interstate pavement condition level for each State (23 CFR 490.317); and (2) whether or not a State DOT has made significant progress t
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United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2018-04-01
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This TechBrief provides an overview of micro-sampling and micro-extraction of hot or warm mix asphalt pavement. Micro-sampling and micro-extraction have just recently become feasible because of the development of 4-mm dynamic shear rheometry (DSR).
The Development of Crash Modification Factors program conducted safety evaluation of horizontal curve realignment on rural, two-lane roads for the Evaluation of Low Cost Safety Improvements Pooled Fund Study. The goal of this evaluation is to evaluate the safety effectiveness of this strategy. This strategy sought to reduce lane departure crashes,
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This document is a technical summary of the Federal Highway Administration report "Alternative Contracting Method Performance in U.S. Highway Construction" (DTFH61-13-C-00024).
United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center
2018-04-01
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This document is a technical summary of the Federal Highway Administration report "Validation of Pavement Performance Measures Using LTPP Data," Publication No. FHWA-HRT-17-089.
This report presents the steps for the Federal Highway Administration (FHWA) to compute measures for the purpose of determining whether a State Department of Transportation (DOT) has made significant progress towards the achievement of its National Highway Performance Program and National Highway Freight Program targets (23 CFR 490.109). While desi
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United States. Federal Highway Administration. Office of Bridges and Structures
2018-04-01
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This guide defines bridge preservation terms and identifies commonly practiced bridge preservation activities. It also provides guidance to State governments and other bridge-owning agencies on establishing or improving existing bridge preservation programs as part of an asset management program.
This report presents the steps for Federal Highway Administration (FHWA) to compute bridge condition measures for the purpose of determining: (1) the minimum bridge condition level for each State (23 CFR 490.411); and (2) whether a State Department of Transportation (DOT) has made significant progress towards the achievement of its bridge condition
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United States. Department of Transportation. Federal Highway Administration. Office of Safety
2018-04-01
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This flyer lists twenty proven safety countermeasures from the following categories: roadway departure, intersections, pedestrians/bicycles, and crosscutting.
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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