United States. Department of Transportation. Federal Highway Administration
2026-03-01
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This postcard is to announce the Excellence in Highway Safety Data Awards Student Contest 2026. The intended audience is all undergraduate, graduate, and community college students with a passion for impactful research and data analysis.
United States. Department of Transportation. Federal Highway Administration
2026-02-01
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This fact sheet highlights the Cooperative Automation Driving System (C-ADS) with Road Weather Management (RWM) with a Lane Closure. The RWM Program seeks to develop and promote effective tools to observe and predict the impacts of weather on the roads and to alleviate those impacts. The program pursues the following objectives: Develop a national,
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This executive summary finds that high-speed rail is feasible in Colorado under Federal Railroad Administration criteria, focusing on the state’s two principal corridors: I-25 from Fort Collins to Pueblo and I-70 from Denver International Airport to Eagle County Airport. It evaluates highway, greenfield, and existing rail alignments and compares di
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This document reports on approximately 2,800 responses to a North American survey of older adults who cycle. The survey, open from March 2024 through February 2025, included questions that captured a person’s cycling over their life course, as well as their current cycling styles, habits, and preferences. Responses reflect the impact of various fac
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United States. Department of Transportation. Federal Highway Administration
2024-07-16
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The U.S. Department of Transportation Federal Highway Administration’s (FHWA's) Strategic Workforce Development (SWD) Program plays a pivotal role in addressing the growing demand for a highway construction workforce while breaking down barriers for individuals seeking career opportunities and community improvement.
The standard technique for evaluating fleet noise is to estimate the flight procedure source noise by using noise–power–distance (NPD) curves. Noise calculations within the Aviation Environmental Design Tool (AEDT) rely on NPD curves provided by aircraft manufacturers. This dataset reflects representative aircraft categories at set power levels and
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The primary objective of this study was to investigate the feasibility of using lignin, an environmentally friendly biopolymer, for sustainable protection of Kansas roadsides against wind and rainfall erosion during the critical stage of construction that occurs prior to the emergence of a vegetative cover. Results from laboratory-scale experiments
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The primary objective of this study was to investigate the feasibility of using lignin, an environmentally friendly biopolymer, for sustainable protection of Kansas roadsides against wind and rainfall erosion during the critical stage of construction that occurs prior to the emergence of a vegetative cover. Results from laboratory-scale experiments
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The objectives of this project, as stated in the Invitation for ASCENT COE Notice of Intent (COE-2014-29), are to “measure the spray characteristics of the nozzles used in the Referee Combustor used in Area 6 tests and to develop models for characterizing the atomization and vaporization of the reference fuels.” We conducted experiments within the
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The objective of this research is to gather and analyze aircraft engine non-volatile particulate matter (nvPM) emissions data collected from CLEEN, ACCESS and other recent emission measurement campaigns and to develop improved models for the relationship between fuel composition and nvPM emissions. Improvements to estimates of nvPM emissions from a
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The objective of this project was to continue research at The Pennsylvania State University in the ASCENT Center of Excellence to complement the sonic boom standards development ongoing within the Committee for Aviation Environmental Protection's (CAEP) Working Group 1 (Noise Technical), Supersonics Standards Task Group (SSTG). This research aimed
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The objective of ASCENT Project 21 is to facilitate continued development of climate policy analysis tools that will enable impact assessments for different policy scenarios at the global, zonal, and regional scales and will enable FAA to address its strategic vision on sustainable aviation growth. Following this overall objective, the particular o
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United States. Department of Transportation. Federal Highway Administration
2026-02-23
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The National Highway System supports our economy, safety, and daily travel. But delays that are caused by planned activities, like work zones and events, or unexpected problems, like crashes and bad weather, interrupt its function. Both transportation workers and travelers need accurate, up-to-date information, but this can be hard to get due to: I
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The jet from a model-scale, internally mixed nozzle produced a loud howling when operated at jet Mach numbers between 0.80 and 1.00. Discrete tones dominated the noise radiated to the far field and powerful oscillations were present in the jet. To explain these observations, this paper leverages a blend of experimental acoustic and flow measurement
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The Indiana Department of Transportation’s (INDOT) roadside management program is tasked with multiple items across the state’s 39,000 lane miles. Roadside maintenance is an essential task that keeps INDOT’s rights-of-way (ROWs) safe and functional for drivers. Most roadside vegetation maintenance work for INDOT is outsourced, and INDOT’s in-house
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The I-24 Smart Corridor project, launched by TDOT since 2018, is a first-ever Smart Corridor study in Tennessee. This project integrates I-24 and SR-1, a parallel arterial roadway, with physical, technological, and operational enhancements to provide road users with accurate, real-time information and actively manage traffic. The I-24 project is co
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The goal of this project was to research potential open-source alternative geospatial frameworks for upgrading AEDT, and to test and experiment with different novel computational approached in order to drastically speed up the noise exposure calculations from potential large numbers of UAS being operated for package delivery or other potential UAS
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The Federal Aviation Administration (FAA) Office of Aviation Research, Airport Technology Research and Development Branch, AAR-410 has designed, installed, and evaluated a prototype Advanced Taxiway Guidance System (ATGS) at the Atlantic City International Airport (ACY). The principal feature of this prototype is automatically controllable taxiway
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The exploration of novel acoustic liner designs using 3D internal lattices has become a growing topic of interest within the field of additive manufacturing (AM). However, the comparison between the acoustic liner response of computational simulation and experimental testing tends to show significant deviation. A potential cause of this deviation i
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The environmental impact of nitrogen oxide (NOx) emissions varies with emission altitude and latitude. NOx emissions from subsonic aviation (9-12 km) contribute to net global ozone formation, whereas those from supersonic aircraft (above 14 km) lead to net global ozone depletion. However, the effects of NOx emission altitude on surface air quality
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United States Department of Transportation
Speth, Raymond