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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 1170 results
  • Runway Incursion Mitigation Fiscal Year 2025 Annual Summary Report
    Runway Incursion Mitigation Fiscal Year 2025 Annual Summary Report
    Healey, Joseph ;
    Debban, Steven
    2026-08-01 | PDF
    In fiscal year (FY) 2012, the Federal Aviation Administration (FAA) Office of Airports (ARP) initiated a research study to identify and geographically locate areas at airports with nonstandard taxiway geometry. This research was advanced because an earlier study had shown nonstandard taxiway geometries to be associated with a higher prevalence of r ...
  • Radar Altimeter Interference Contextualization
    Radar Altimeter Interference Contextualization
    Redman, D. ;
    Fox, M.
    2026-08-01 | PDF
    This document presents a comprehensive assess sment of the compatibility between 5G systems operating in the 3700-4200 MHz band and radio altimeters (RAs) operating in the adjacent 4200-4400 MHz band. The report includes background information and describes relevant 5G emitter and RA parameters necessary to determine compatibility in the context of ...
  • ThermoMechanical Behavior of 410 Stainless Steel Over a Wide Range of Strain Rates Temperatures and Loading Conditions
    Thermo-Mechanical Behavior of 410 Stainless Steel Over a Wide Range of Strain Rates, Temperatures, and Loading Conditions
    Ho, Chong-Wei
    2026-08-01 | PDF
    This research investigates the thermomechanical behavior of 410 stainless steel under tension, compression, and torsion across a wide strain rate range from 10-4 s-1 to 5000 s-1. The material reveals identical yielding stresses across all loading modes, however, the material exhibits more pronounced hardening under tensile loading, followed by comp ...
  • StateofTechnology ReviewAutonomous Ground Vehicle Systems in Airport Environments
    State-of-Technology Review-Autonomous Ground Vehicle Systems in Airport Environments
    Woltmann, Sarah ;
    Rybski, Paul
    2026-08-01 | PDF
    As airports increasingly explore autonomous ground vehicle system technology (AGVS) to enhance operational efficiency and safety, the integration, validation, and regulatory compliance of those systems pose challenges. The adoption of AGVSs within airport environments-both nationally and internationally-has accelerated due to growing demands for ef ...
  • Evaluation of Surrogate Liquid for FluorineFree Foam Concentrate in OutputBased Aircraft Rescue and Firefighting Vehicle Tests
    Evaluation of Surrogate Liquid for Fluorine-Free Foam Concentrate in Output-Based Aircraft Rescue and Firefighting Vehicle Tests
    Hartman, Sherman
    2026-08-01 | PDF
    Under Title 14 Code of Federal Regulations Part 139, Certification of Airports, certificated airports are required to conduct output-based proportioning tests when using fluorine-free foams (F3s) to ensure their aircraft rescue and firefighting (ARFF) vehicle is in an operationally capable state. Output-based testing with F3 can be restricted by en ...
  • 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.
  • 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 ...
  • 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 ...
  • 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 ...
  • Assessment of Emerging Metallic Structures Technologies through Test and Analysis of Fuselage Structure Test Panel 3
    Assessment of Emerging Metallic Structures Technologies through Test and Analysis of Fuselage Structure: Test Panel 3
    Tian, Yongzhe ;
    Kulak, Mike
    2026-07-01 | PDF
    The Federal Aviation Administration (FAA), in partnership with Arconic, Embraer, and National Institute for Aviation Research (NIAR), is assessing emerging metallic structures technologies (EMST) using the FAA's Full-Scale Aircraft Structural Test Evaluation and Research (FASTER) facility and Structures and Materials Lab. In this collaborative effo ...
  • Towards Comprehensive Safety Assurance of a DAL A AIMLbased Runway Alignment System using Overarching Properties
    Towards Comprehensive Safety Assurance of a DAL A AI/ML-based Runway Alignment System using Overarching Properties
    Paul, Saswata ;
    Prince, Daniel
    2026-07-01 | PDF
    This report details an Overarching Properties (OPs)-based approach for assuring the safety of Artificial Intelligence/Machine Learning (AI/ML)-based digital aerospace systems. To rigorously evaluate and enhance this approach, an AI-Assisted Autonomous Runway Alignment (AARA) system is introduced as a motivating use case, allowing for the identifica ...
  • 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 ...
  • 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.
  • 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 ...
  • 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 ...
  • 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 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 ...
1 - 20 / 1170
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