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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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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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.
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
2018-04-01
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This document provides guidance and direction to the FHWA Division Bridge Engineers in performing National Bridge Inspection Program (NBIP) compliance reviews of State bridge safety inspection programs. The term “reviewer” refers to the FHWA Division Bridge Engineer. The term “State” refers to either a State DOT or Federal agency being reviewed. Th
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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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United States. Department of Transportation. Federal Highway Policy & Guidance Center
2018-04-01
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Memoranda & Guidance: Guidance
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In this document, Federal Highway Administration (FHWA) provides average vehicle occupancy (AVO) factors for computing: (1) Travel Time Reliability measures; and (2) Total Peak Hour Excessive Delay (PHED) metrics.
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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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.
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.
This report describes the experiment on how to model impacts of connected and autonomous/automated vehicles (CAVs) and ride-hailing with an Activity-Based Model (ABM) and Dynamic Traffic Assignment (DTA) in the context of Exploratory Modeling and Analysis (EMA). EMA is a systematic approach to perform sensitivity analyses using models when users ca
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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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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 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 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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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 Health in Transportation Working Group 2017 Annual Report provides an overview of the Working Group’s activities and accomplishments in 2017, summarizes other U.S. DOT health-related accomplishments, and documents its progress toward the recommendations laid out in the 2016 Annual Report. The report also offers goals for 2018.
Connected Vehicle technologies help reduce the number of driving related injuries and fatalities by allowing road users to be aware of potential dangerous situations on the road. There are two main types of Connected Vehicles communications, vehicle-to-infrastructure and vehicle-to-vehicle. Vehicle-to-infrastructure communication takes place betwee
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