United States. Federal Highway Administration. Office of Safety and Operations Research and Development
2024-01-01
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PDF
This test case proved the benefits of CDA application in signalized intersections with adaptive settings and helped provide a better understanding of its advantages. Potential for future work remains high. In particular, the developed framework can be significantly improved by completing further research in the following areas: Large Scale Testing,
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United States. Department of Transportation. Federal Highway Administration
2024-01-01
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PDF
On rural roadways, traffic incident responders face several unique roadway characteristics and conditions that create safety challenges for both responders and the traveling public. These safety challenges can slow the Traffic Incident Management (TIM) response timeline (detection, notification, and arrival stages), disrupt responder communications
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Using alternative materials (e.g., lightweight, recycled) in geotechnical applications may be advantageous compared to conventional structural backfills. This report summarizes current knowledge and the state of practice for using alternative backfill materials in applications, including backfills for retaining walls, bridge abutments, and pipes/cu
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The Database for Air Quality and Noise Analysis (DANA) tool version 2.1 provides traffic-related inputs to the Motor Vehicle Emission Simulator (MOVES) vehicle emissions model and the Traffic Noise Model (TNM). DANA provides real world measurements of traffic conditions for use in environmental analyses. By having these data already compiled, envir
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The 2022 National Household Travel Survey (NHTS) provides an inventory of daily personal travel in the United States. It is the only source of national-level multimodal statistics on personal travel in the United States. The survey series (conducted since 1969) includes demographic data on households, people, and vehicles as well as detailed inform
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United States. Department of Transportation. Federal Highway Administration
2024-01-01
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PDF
From 2017 to 2021, over 83,000 people died on rural roadways; this accounts for 43 percent of all roadway deaths despite only 20 percent of the U.S. population residing in these areas and only 31 percent of vehicle miles traveled occurring in rural areas. Furthermore, 43 percent of speed- related fatalities, 56 percent of roadway departure fataliti
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This report details the approach and findings from research conducted regarding the occurrence of responder struck-by crashes. There is not one national source of responder struck-by crashes from which to draw and analyze data to better understand and mitigate these tragic incidents. This project sought to cast a wide net across many different pote
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In recognition of the prevalence of asphalt concrete (AC) overlays as a rehabilitation solution for existing portland cement concrete (PCC) pavements, this project looked at State Departments of Transportation (DOTs) practices for the evaluation, design, construction, maintenance, and rehabilitation of AC/PCC composite pavements. This was primarily
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United States. Department of Transportation. Federal Highway Administration
2024-01-01
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PDF
Since 1995, the Environmental Excellence Awards have recognized leaders across the country who make outstanding contributions to environmental stewardship and partnerships above and beyond traditional transportation project outcomes. The winning projects and programs exemplify FHWA’s strategic goals of safety, economic strength and global competiti
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United States. Department of Transportation. Federal Highway Administration
2024-01-01
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PDF
The Federal Highway Administration (FHWA) has an ongoing Accelerated Implementation and Deployment of Pavement Technologies (AIDPT) Program, which includes the deployment of innovative technologies to improve pavement performance and reduce agency risk. A constant challenge in the transportation community is timely and efficient deployment of these
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United States. Department of Transportation. Federal Highway Administration
2024-01-01
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PDF
This poster highlights the 2024 Recipient of the Transportation Pooled Fund (TPF) Excellence Award - the Indiana Department of Transportation (INDOT) and its efforts in accomplishing this honor. As a result of extensive collaboration and research, this TPF study created two new American Association of State Highway and Transportation Officials (AAS
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United States. Federal Highway Administration. Office of Safety and Operations Research and Development
2024-01-01
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PDF
This fact sheet shows the practicality of Cooperative Driving Automation (CDA) -enabled vehicles receiving notifications about alterations due to temporary traffic control in the presence of a work zone can enable the vehicles to navigate through the work area safely and precisely. Future research could potentially focus on the following areas: Tes
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United States. Federal Highway Administration. Office of Safety and Operations Research and Development
2024-01-01
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PDF
This fact sheet provides information regarding move over laws that prove that documented benefits could be achieved through the application of Cooperative Driving Automation (CDA) traffic incident management scenarios and helped provide a better understanding of its advantages. Through data collection and analysis, the research team outlined some s
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United States. Department of Transportation. Federal Highway Administration
2024-01-01
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PDF
This flyer highlights how you can learn more about the resources that are available to the Turner-Fairbank Highway Research Center (TFHRC). These include: TFHRC, The Federal Highway Administration (FHWA) Research and Technology (R&T) Portfolio, The FHWA R&T Story, Public Roads, TFHRC Office and Tours, The Exploratory Advanced Research Program, Tran
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This document provides technical information on the hydraulic analysis and design of bridges. The goal is to provide information so that bridges can be designed as safely as possible while optimizing costs and limiting impacts to property and the environment. Many significant aspects of bridge hydraulic design are discussed. These include regulator
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United States. Department of Transportation. Federal Highway Administration
2024-01-01
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PDF
FHWA annually recognizes innovation among local agencies and tribes through the Build a Better Mousetrap (BABM) national competition. BABM shines a spotlight on those frontline workers who use their expertise and creativity to solve everyday problems that improve safety, reduce costs, and increase efficiency. The FHWA Office of Technical Services -
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United States. Department of Transportation. Federal Highway Administration
2024-01-01
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PDF
This poster highlights the 2024 recipient of the Transportation Pooled Funds (TPF) Excellence Award - the Minnesota Department of Transportation (MnDOT). Clear Roads Transportation Pooled Fund (TPF) - beginning nearly 20 years ago, has completed 86 research and synthesis projects in the areas of methods, equipment, materials, training, technology,
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Safety analysis primarily focuses on identifying and quantifying the influences of contributing factors to traffic collisions and the consequences of these factors. A practice of relying on observed data only allows relative comparisons between analysis methods and may not lead to determining how well the methods mimic the true underlying crash-gen
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