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FAA William J. Hughes Technical Center for Advanced Aerospace

rosaP Repository & Open Science Access Portal

Technical reports, Tech Notes, and articles that document the FAA’s applied research, engineering, testing and evaluation, and resulting scientific solutions addressing current and future air transportation challenges in collaboration with industry, academia, and other government partners. For more content, visit the FAA Technical Library https://www.faa.gov/about/office_org/headquarters_offices/ang/library/. Bookmark this collection:https://rosap.ntl.bts.gov/collection_faa_tl or https://doi.org/10.21949/1530830.

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Showing 1 - 20 of 1033 results
  • How Los Angeles Can Improve Its Delivery and Maintenance of Protected Bike Lanes and Why It Should Policy Brief
    How Los Angeles Can Improve Its Delivery and Maintenance of Protected Bike Lanes (and Why It Should) [Policy Brief]
    Wilcox, Micah
    ORCID ICON IMG
    2026-07-01 | PDF
    The study had four main components: A literature review highlighting nine best practices for active transportation infrastructure project management; interviews with seven planners from three American cities with high bikeability rankings, focusing on how these cities have implemented these best practices; interviews with four active transportation ...
  • Evaluating Bat Use of Culverts in Virginia and Opportunities to Streamline Consultation for VDOT Projects
    Evaluating Bat Use of Culverts in Virginia and Opportunities to Streamline Consultation for VDOT Projects
    Donaldson, Bridget M. ;
    Luu, Jonathan C.
    2026-07-01 | PDF
    Transportation projects in Virginia frequently require coordination with the U.S. Fish and Wildlife Service (USFWS) to address the potential effects on federally listed bat species. Although existing tools provided by USFWS and the Federal Highway Administration offer effective pathways for many projects, individual coordination is still needed to ...
  • Enhancing the Safety of Georgias Senior Drivers and Pedestrians by Analyzing Crash Characteristics and Behavior
    Enhancing the Safety of Georgia’s Senior Drivers and Pedestrians by Analyzing Crash Characteristics and Behavior
    Tsai, Yichang (James) ;
    Luo, Shiwei
    2026-07-01 | PDF
    Georgia has triggered the Federal Highway Administration's Older Drivers and Pedestrians Special Rule for two consecutive comparison periods. As a result, the State is required to incorporate strategies addressing senior road user safety into its Strategic Highway Safety Plan. This report responds directly to this requirement. The objective of this ...
  • Which Freeway Corridors in Los Angeles Can Support Regional Bus Service Policy Brief
    Which Freeway Corridors in Los Angeles Can Support Regional Bus Service? [Policy Brief]
    Sanchez, Ivan Emilio III
    2026-07-01 | PDF
    This study highlights a screening-level method for identifying potential sites for new regional bus services. The frame work is intended to help Caltrans District 7 compare freeway segments and identify sites for further technical analysis.
  • Safety Assurance for Artificial IntelligenceMachine Learning in Safety Critical Airborne Systems
    Safety Assurance for Artificial Intelligence/Machine Learning in Safety Critical Airborne Systems
    Sharma, Prashin ;
    McFarland, Chad
    2026-06-01 | PDF
    This report addresses the challenges of integrating artificial intelligence (AI) and machine learning (ML) technologies into aviation while ensuring safety and reliability. AI/ML applications in areas such as autonomous flight control and collision avoidance show great potential, but there is uncertainty around how to employ them and certify them c ...
  • Investigation of Events Involving Aerodynamic Degradation of the Vertical StabilizerRudder During Ground Icing Conditions
    Investigation of Events Involving Aerodynamic Degradation of the Vertical Stabilizer/Rudder During Ground Icing Conditions
    Green, Steven D.
    2026-06-01 | PDF
    The Federal Aviation Administration’s (FAA’s) Aircraft Icing Research Program conducts research to maintain safe winter ground operations, evaluates the effects of changing ground operations, develops test and analysis methods to support these changes, and address effects of technology changes for de/anti-icing fluids and procedures.FAA rules and r ...
  • Effect of Bridge Deck Placement Sequences on Cracking Performance
    Effect of Bridge Deck Placement Sequences on Cracking Performance
    Arce, Gabriel A. ;
    Ozyildirim, Celik
    2026-06-01 | PDF
    Uncertainty persists regarding the influence of continuous deck placement on cracking performance. This study evaluates the effect of bridge deck placement sequence—that is, continuous versus sequential (checkerboard)—through a literature review, a survey of state departments of transportation and Virginia Department of Transportation (VDOT) distri ...
  • Report 26R49 Effect of Bridge Deck Placement Sequences on Cracking Performance Research Project Brief
    Report 26-R49: Effect of Bridge Deck Placement Sequences on Cracking Performance [Research Project Brief]
    Arce, Gabriel A. ;
    Ozyildirim, Celik
    2026-06-01 | PDF
    The objective of this study was to gain an understanding of the effect of bridge deck placement methods on bridge deck cracking performance.
  • Report 26R51 Analyzing and Predicting Truck Travel Time Reliability Research Project Brief
    Report 26-R51: Analyzing and Predicting Truck Travel Time Reliability [Research Project Brief]
    Zhao, Mo ;
    Appiah, Justice
    2026-06-01 | PDF
    The study analyzed 2019–2025 National Performance Management Research Data Set truck travel time data for 1,743 interstate segments alongside traffic, roadway, crash, incident, and weather information. Three modeling approaches were tested: a hierarchical Bayesian model, random forest models for each period analyzed (AM peak, midday, PM peak, overn ...
  • Evaluation of Existing Transportation Demand Management Calculators
    Evaluation of Existing Transportation Demand Management Calculators
    Scheib, Walter ;
    Kilpatrick, Ian
    2026-06-01 | PDF
    The Colorado Department of Transportation (CDOT) supports the use of Transportation Demand Management (TDM) strategies to reduce greenhouse gas emissions (GHG) and maximize transportation investments implemented at the state and local levels. This report represents initial research that will inform potential development of a CDOT TDM Calculator. Sp ...
  • Artificial Intelligence Deployment Center of Excellence AI COE Brief
    Artificial Intelligence Deployment Center of Excellence (AI COE) [Brief]
    United States. Department of Transportation. Federal Highway Administration
    2026-06-01 | PDF
    The Federal Highway Administration (FHWA) is establishing the Artificial Intelligence Deployment Center of Excellence (AI COE) to provide national leadership for AI research, technology, and knowledge transfer in surface transportation.
  • How Bike Ridership Data Can Improve Bike Safety in Los Angeles
    How Bike Ridership Data Can Improve Bike Safety in Los Angeles
    Salazar, Anthony Kenzo
    2026-06-01 | PDF
    Biking is a crucial mobility option for cities as it is dramatically more space-efficient than cars. Los Angeles, however, has failed over the last ten years to increase the viability of biking, as the number of cyclist deaths and serious injuries has not changed, while ridership has stagnated, and may be decreasing. One reason for this may be that ...
  • Equestrian Transportation Safety in the Northeastern San Fernando Valley
    Equestrian Transportation Safety in the Northeastern San Fernando Valley
    Johnson, Milena
    ORCID ICON IMG
    2026-06-01 | PDF
    The Northeastern San Fernando Valley is a historic, passionate, and diverse equestrian community in suburban Los Angeles. It hosts approximately three-quarters of the equestrian population of the City of Los Angeles. Though the region has an extensive network of equestrian trails, many of these trails are unofficial, not clearly mapped, or lacking ...
  • Analyzing and Predicting Truck Travel Time Reliability
    Analyzing and Predicting Truck Travel Time Reliability
    Zhao, Mo ;
    Appiah, Justice
    2026-06-01 | PDF
    Truck travel time reliability (TTTR) is one of the most important performance measures for assessing freight movement on the interstates. The Virginia Department of Transportation (VDOT) and the Virginia Office of Intermodal Planning and Investment have been reporting TTTR and setting performance targets as required by the Federal Highway Administr ...
  • Report 26R47 Field Evaluation and Asset Management Planning for Noise Barriers Research Project Brief
    Report 26-R47: Field Evaluation and Asset Management Planning for Noise Barriers [Research Project Brief]
    Provines, Jason T.
    2026-06-01 | PDF
    The purpose of this research was to improve the life-cycle management of VDOT’s noise barrier inventory. This project was conducted through (1) field evaluations of the condition and durability of VDOT’s noise barriers, (2) developing a framework for VDOT noise barrier inspection and asset management programs, and (3) conducting trial inspections u ...
  • Investigation of Unbraced Pile Height in Fully Encased Pile Bents of Bridge Structures
    Investigation of Unbraced Pile Height in Fully Encased Pile Bents of Bridge Structures
    Dahlberg, Justin ;
    Liu, Zhengyu
    2026-05-01 | PDF
    This study investigated the structural performance of fully encased steel H-piles used in bridge foundations, with a specific focus on the effects of unbraced pile height resulting from scour conditions. While concrete encasement is widely used to protect piles, its structural contribution is often excluded from axial capacity calculations in curre ...
  • Seismic Avalanche Detection for the Turnagain Arm Transportation Corridor
    Seismic Avalanche Detection for the Turnagain Arm Transportation Corridor
    Lynch, Richard
    2026-05-01 | PDF
    Three inexpensive ultra-low-noise MEMS accelerometers were deployed along the Turnagain Arm corridor near Girdwood, Alaska, to evaluate automated seismic avalanche detection. Over 145 days of monitoring, 400 seismic events were recorded including two confirmed avalanches on the same evening (one detected seismically, one confirmed by sensor burial) ...
  • Flight Loads and Airframe Usage Analysis of NextGeneration Airtankers CL415
    Flight Loads and Airframe Usage Analysis of Next-Generation Airtankers – CL-415
    Kliment, Linda K. ;
    Rokhsaz, Kamran
    2026-04-01 | PDF
    This report presents the results of an analysis of operational data from a fleet of four CL-415 Super Scooper aircraft flown in support of the United States Forest Service aerial firefighting operations. The aircraft were equipped with IONode100 digital flight data recorders supported by Latitude Technologies Corporation. Data used for this report ...
  • National Airport Pavement Test Facility Construction Cycle 9 Volume 5Flexible Pavement Overload Test
    National Airport Pavement Test Facility Construction Cycle 9 - Volume 5—Flexible Pavement Overload Test
    Kazmee, Hasan ;
    Murrell, Scott
    2026-04-01 | PDF
    The Federal Aviation Administration (FAA) conducted traffic tests of full-scale flexible airport pavements at the National Airport Pavement Test Facility (NAPTF) as part of Construction Cycle 9 (CC9). Within CC9, the Flexible Pavement Overload Test was designed to develop International Civil Aviation Organization (ICAO) criteria for allowable overl ...
  • National Airport Pavement Test Facility Construction Cycle 9 Volume 4 CementTreated Permeable Base Test
    National Airport Pavement Test Facility Construction Cycle 9 — Volume 4, Cement-Treated Permeable Base Test
    Kazmee, Hasan ;
    Murrell, Scott
    2026-04-01 | PDF
    Construction Cycle 9 (CC9) was the ninth in a series of full-scale airport pavement tests performed at FAA’s National Airport Pavement Test Facility (NAPTF), the fifth involving flexible pavements. It contained four test areas: Fatigue, Geosynthetics, Cement-Treated Permeable Base (CTPB), and Overload. This report addresses the CTPB test area, whic ...
1 - 20 / 1033