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Showing 61 - 80 of 527 results

Assessing Condition of Rehabilitated Concrete Pavement With Slab Fracturing and Asphalt Overlay Using Distributed Fiber Optic Sensors [Research Brief]

Lu, Pan

;

Huang, Ying

2026-08-01 | PDF

Reflective cracking is one of the primary causes of premature deterioration in asphalt-overlaid Portland cement concrete (PCC) pavements, reducing service life and increasing maintenance costs. Because crack initiation begins within the underlying PCC layer before becoming visible at the surface, conventional inspection methods have limited capabil ...

10/19/2026

Title : Assessing Condition of Rehabilitated Concrete Pavement With Slab Fracturing and Asphalt Overlay Using Distributed Fiber Optic Sensors [Research Brief] Creator(s) : Lu, Pan;Huang, Ying;Xu, Lyuang;Zhang, Dawei;Mahmood, Yasir; Corporate Creator(s) : North Dakota State University;Center for Transformative Infrastructure Preservation and Sustainability (CTIPS) Region 8 University Transportation Center (UTC); Corporate Contributor(s) : United States. Department of Transportation. University Transportation Centers (UTC) Program;United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology;United States. Department of Transportation. Federal Highway Administration; Published Date : 2026-08-01 Report Number : CTIPS-26-006 URL : https://rosap.ntl.bts.gov/view/dot/93994
Lu, P., Huang, Y., Xu, L., Zhang, D., & Mahmood, Y. (2026). Assessing Condition of Rehabilitated Concrete Pavement With Slab Fracturing and Asphalt Overlay Using Distributed Fiber Optic Sensors [Research Brief] (Report No. CTIPS-26-006). Center for Transformative Infrastructure Preservation and Sustainability (CTIPS) Region 8 University Transportation Center (UTC). https://rosap.ntl.bts.gov/view/dot/93994

Lu, Pan, Ying Huang, Lyuang Xu, Dawei Zhang, and Yasir Mahmood. Assessing Condition of Rehabilitated Concrete Pavement With Slab Fracturing and Asphalt Overlay Using Distributed Fiber Optic Sensors [Research Brief]. Report no. CTIPS-26-006. Center for Transformative Infrastructure Preservation and Sustainability (CTIPS) Region 8 University Transportation Center (UTC), 2026. https://rosap.ntl.bts.gov/view/dot/93994.

Lu, Pan, et al. Assessing Condition of Rehabilitated Concrete Pavement With Slab Fracturing and Asphalt Overlay Using Distributed Fiber Optic Sensors [Research Brief]. Center for Transformative Infrastructure Preservation and Sustainability (CTIPS) Region 8 University Transportation Center (UTC), 2026, Report no. CTIPS-26-006, ROSA P. https://rosap.ntl.bts.gov/view/dot/93994.
Export RIS Citation Information. TY - Brief AU - Lu, Pan AU - Huang, Ying AU - Xu, Lyuang AU - Zhang, Dawei AU - Mahmood, Yasir A2 - North Dakota State University A2 - Center for Transformative Infrastructure Preservation and Sustainability (CTIPS) Region 8 University Transportation Center (UTC) A3 - United States. Department of Transportation. University Transportation Centers (UTC) Program A3 - United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology A3 - United States. Department of Transportation. Federal Highway Administration AB - Reflective cracking is one of the primary causes of premature deterioration in asphalt-overlaid Portland cement concrete (PCC) pavements, reducing service life and increasing maintenance costs. Because crack initiation begins within the underlying PCC layer before becoming visible at the surface, conventional inspection methods have limited capability for early detection. This project developed and experimentally validated a hybrid experimental-numerical framework that integrates optical frequency domain reflectometry (OFDR)-based distributed fiber optic sensing (DFOS), laboratory-scale three-point bending tests, and finite element (ABAQUS) modeling to monitor and interpret bottom-up reflective cracking. Rectangular and semi-cylindrical asphalt-overlaid PCC specimens were instrumented with surface-bonded distributed optical fibers in a serpentine layout with 20-mm spacing. Controlled bending tests reproduced bottom-up crack initiation and propagation, with cracks consistently originating at a predefined notch within the PCC layer and propagating toward the asphalt overlay. The OFDR-based DFOS system identified localized strain concentrations associated with crack development; and finite element simulations reproduced the observed crack initiation location, propagation path, stress redistribution, and global structural response. The close agreement among laboratory observations, distributed strain measurements, and numerical predictions validates the framework and demonstrates the potential of OFDR-based DFOS for structural health monitoring and condition assessment of rehabilitated concrete pavements. AN - dot:93994 DA - 2026-08-01 ET - Research Brief KW - Fiber optics KW - Remote sensing KW - Optical fibers KW - Portland cement concrete KW - Concrete pavements KW - Rehabilitation KW - Slabs KW - Pavement overlays KW - Bituminous overlays KW - Fracture mechanics KW - Structural health monitoring KW - Finite element method KW - Distributed fiber optic sensing KW - Optical frequency domain reflectometry KW - Reflective cracking KW - Slab fracturing LA - English PB - Center for Transformative Infrastructure Preservation and Sustainability (CTIPS) Region 8 University Transportation Center (UTC) PY - 2026 SN - CTIPS-26-006 TI - Assessing Condition of Rehabilitated Concrete Pavement With Slab Fracturing and Asphalt Overlay Using Distributed Fiber Optic Sensors [Research Brief] M3 - Brief N1 - United States N1 - 69A3552348308 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93994 ER -
Secured Small-Key-Based Post Quantum Cryptographic Scheme for Blockchain-Based VANET

Rahman, Mizanur

;

Abrar, Akid

2025-02-01 | PDF

The emergence of quantum computing presents significant challenges to traditional cryptographic algorithms used to secure data communication within Transportation Cyber-Physical Systems (TCPS). The vulnerabilities of traditional cryptographic schemes against quantum computing-based cyberattacks, with a particular focus on the data communication asp ...

10/19/2026

Title : Secured Small-Key-Based Post Quantum Cryptographic Scheme for Blockchain-Based VANET Creator(s) : Rahman, Mizanur;Abrar, Akid;Shakib, Kazi Hassan;Chowdhury, Mashrur;al Mamun, Abdullah;Salek, M Sabbir;Lao, Yingjie;Zhang, Zhenkai;Li, Shaozhi; Corporate Creator(s) : National Center for Transportation Cybersecurity and Resiliency (TraCR) National University Transportation Center (UTC);University of Alabama, Tuscaloosa; Corporate Contributor(s) : United States. Department of Transportation. University Transportation Centers (UTC) Program;United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology; Published Date : 2025-02-01 Report Number : 13 URL : https://rosap.ntl.bts.gov/view/dot/93993
Rahman, M., Abrar, A., Shakib, K. H., Chowdhury, M., al Mamun, A., Salek, M. S., Lao, Y., Zhang, Z., & Li, S. (2025). Secured Small-Key-Based Post Quantum Cryptographic Scheme for Blockchain-Based VANET (Report No. 13). National Center for Transportation Cybersecurity and Resiliency (TraCR) National University Transportation Center (UTC). https://rosap.ntl.bts.gov/view/dot/93993

Rahman, Mizanur, Akid Abrar, Kazi Hassan Shakib, Mashrur Chowdhury, Abdullah al Mamun, M Sabbir Salek, Yingjie Lao, Zhenkai Zhang, and Shaozhi Li. Secured Small-Key-Based Post Quantum Cryptographic Scheme for Blockchain-Based VANET. Report no. 13. National Center for Transportation Cybersecurity and Resiliency (TraCR) National University Transportation Center (UTC), 2025. https://rosap.ntl.bts.gov/view/dot/93993.

Rahman, Mizanur, et al. Secured Small-Key-Based Post Quantum Cryptographic Scheme for Blockchain-Based VANET. National Center for Transportation Cybersecurity and Resiliency (TraCR) National University Transportation Center (UTC), 2025, Report no. 13, ROSA P. https://rosap.ntl.bts.gov/view/dot/93993.
Export RIS Citation Information. TY - Tech Report AU - Rahman, Mizanur AU - Abrar, Akid AU - Shakib, Kazi Hassan AU - Chowdhury, Mashrur AU - al Mamun, Abdullah AU - Salek, M Sabbir AU - Lao, Yingjie AU - Zhang, Zhenkai AU - Li, Shaozhi A2 - National Center for Transportation Cybersecurity and Resiliency (TraCR) National University Transportation Center (UTC) A2 - University of Alabama, Tuscaloosa A3 - United States. Department of Transportation. University Transportation Centers (UTC) Program A3 - United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology AB - The emergence of quantum computing presents significant challenges to traditional cryptographic algorithms used to secure data communication within Transportation Cyber-Physical Systems (TCPS). The vulnerabilities of traditional cryptographic schemes against quantum computing-based cyberattacks, with a particular focus on the data communication aspects of TCPS, are identified in this report. A case study has been conducted to analyze the vulnerabilities of a TCPS application from the Architecture Reference for Cooperative and Intelligent Transportation (ARC-IT) service package, i.e., Electronic Toll Collection, leveraging the Microsoft Threat Modeling tool. This case study highlights the cryptographic vulnerabilities of a TCPS application. In addition, this report, specifically, investigates the vulnerabilities of secured blockchain-based VANETs and presents an impersonation attack model utilizing Shor's algorithm implemented in a quantum computer to target the trust-based architecture of such networks. The findings reveal that an impersonation attack is feasible on a blockchain-based VANET, effectively compromising its trust chain. Consequently, this research underscores the critical need for a quantum-secured blockchain to enhance the security of VANETs and the urgency of transitioning to post-quantum cryptography (PQC) to mitigate these risks in TCPS. Thus, the National Institute of Standards and Technology (NIST)'s PQC standardization process, security levels, and implementation considerations of various PQC families in TCPS are reviewed. Finally, an experimental evaluation of CRYSTALS-Kyber assessed its performance across diverse TCPS communication scenarios, including both wired and wireless technologies. While CRYSTALS-Kyber proves effective in securing TCPS applications over high-bandwidth, low-latency Ethernet networks, this research highlights challenges in meeting the stringent latency requirements of safety-critical wireless applications within TCPS. AN - dot:93993 DA - 2025-02-01 ET - Final Report, 01/01/2024 - 12/31/2024 KW - Blockchains KW - Computer security KW - System architecture KW - Vehicular ad hoc networks KW - Cyberattacks KW - Toll collection KW - Transportation system management KW - Data collection KW - Case studies KW - Post-Quantum Cryptography KW - Quantum Computing KW - Blockchain, VANET, Cybersecurity KW - Cyber-attack KW - Traditional Cryptography KW - Threat Modeling, and CRYSTALS-Kyber LA - English PB - National Center for Transportation Cybersecurity and Resiliency (TraCR) National University Transportation Center (UTC) PY - 2025 SN - 13 TI - Secured Small-Key-Based Post Quantum Cryptographic Scheme for Blockchain-Based VANET M3 - Tech Report N1 - United States N1 - 69A3552344812 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93993 ER -
Development of a Method to Identify and Quantify Microplastics Generated From the Roadway Environment [Research Project Brief]

Ndebele, Nkosinobubelo ;

Lloyd, Lewis N.

2026-10-01 | PDF

The purpose of this research was to advance and apply analytical methods for the identification and quantification of MPs in roadway environments, building on prior investigations of MPs generated from recycled plastic-modified asphalt pavements.

10/19/2026

Title : Development of a Method to Identify and Quantify Microplastics Generated From the Roadway Environment [Research Project Brief] Creator(s) : Ndebele, Nkosinobubelo;Lloyd, Lewis N.;Smith, James A.; Corporate Creator(s) : Virginia Transportation Research Council (VTRC) Corporate Contributor(s) : Virginia. Department of Transportation;United States. Department of Transportation. Federal Highway Administration; Published Date : 2026-10-01 Report Number : 27-R09 URL : https://rosap.ntl.bts.gov/view/dot/93992
Ndebele, N., Lloyd, L. N., & Smith, J. A. (2026). Development of a Method to Identify and Quantify Microplastics Generated From the Roadway Environment [Research Project Brief] (Report No. 27-R09). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/93992

Ndebele, Nkosinobubelo, Lewis N. Lloyd, and James A. Smith. Development of a Method to Identify and Quantify Microplastics Generated From the Roadway Environment [Research Project Brief]. Report no. 27-R09. Virginia Transportation Research Council (VTRC), 2026. https://rosap.ntl.bts.gov/view/dot/93992.

Ndebele, Nkosinobubelo, et al. Development of a Method to Identify and Quantify Microplastics Generated From the Roadway Environment [Research Project Brief]. Virginia Transportation Research Council (VTRC), 2026, Report no. 27-R09, ROSA P. https://rosap.ntl.bts.gov/view/dot/93992.
Export RIS Citation Information. TY - Brief AU - Ndebele, Nkosinobubelo AU - Lloyd, Lewis N. AU - Smith, James A. A2 - Virginia Transportation Research Council (VTRC) A3 - Virginia. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - The purpose of this research was to advance and apply analytical methods for the identification and quantification of MPs in roadway environments, building on prior investigations of MPs generated from recycled plastic-modified asphalt pavements. AN - dot:93992 DA - 2026-10-01 ET - Research Project Brief KW - Recycled materials KW - Plastics KW - Asphalt pavements KW - Erosion control KW - Road marking materials KW - Environment KW - Roads KW - Testing KW - Laboratory tests KW - Zinc KW - Maintenance KW - Tires KW - Literature reviews LA - English PB - Virginia Transportation Research Council (VTRC) PY - 2026 SN - 27-R09 TI - Development of a Method to Identify and Quantify Microplastics Generated From the Roadway Environment [Research Project Brief] M3 - Brief N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93992 ER -
Development of a Method to Identify and Quantify Microplastics Generated From the Roadway Environment

Ndebele, Nkosinobubelo ;

Lloyd, Lewis N.

2026-10-01 | PDF

Microplastics (MPs) are increasingly recognized as an emerging environmental contaminant originating from the fragmentation of larger plastic items. MPs have been identified in roadway environments related to conventional sources (e.g., particles from tires and brakes, road markings, erosion control netting, and litter) and emerging sources such as ...

10/19/2026

Title : Development of a Method to Identify and Quantify Microplastics Generated From the Roadway Environment Creator(s) : Ndebele, Nkosinobubelo;Lloyd, Lewis N.;Smith, James A.; Corporate Creator(s) : Virginia Transportation Research Council (VTRC);University of Virginia. Department of Civil and Environmental Engineering; Corporate Contributor(s) : Virginia. Department of Transportation;United States. Department of Transportation. Federal Highway Administration; Published Date : 2026-10-01 Report Number : FHWA/VTRC 27-R09 URL : https://rosap.ntl.bts.gov/view/dot/93991
Ndebele, N., Lloyd, L. N., & Smith, J. A. (2026). Development of a Method to Identify and Quantify Microplastics Generated From the Roadway Environment (Report No. FHWA/VTRC 27-R09). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/93991

Ndebele, Nkosinobubelo, Lewis N. Lloyd, and James A. Smith. Development of a Method to Identify and Quantify Microplastics Generated From the Roadway Environment. Report no. FHWA/VTRC 27-R09. Virginia Transportation Research Council (VTRC), 2026. https://rosap.ntl.bts.gov/view/dot/93991.

Ndebele, Nkosinobubelo, et al. Development of a Method to Identify and Quantify Microplastics Generated From the Roadway Environment. Virginia Transportation Research Council (VTRC), 2026, Report no. FHWA/VTRC 27-R09, ROSA P. https://rosap.ntl.bts.gov/view/dot/93991.
Export RIS Citation Information. TY - Tech Report AU - Ndebele, Nkosinobubelo AU - Lloyd, Lewis N. AU - Smith, James A. A2 - Virginia Transportation Research Council (VTRC) A2 - University of Virginia. Department of Civil and Environmental Engineering A3 - Virginia. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - Microplastics (MPs) are increasingly recognized as an emerging environmental contaminant originating from the fragmentation of larger plastic items. MPs have been identified in roadway environments related to conventional sources (e.g., particles from tires and brakes, road markings, erosion control netting, and litter) and emerging sources such as recycled plastic-modified asphalt pavements. Still, significant knowledge gaps persist regarding consistent analytical methods and the relative contributions of these diverse sources. This study developed a method to identify these sources of MPs and quantify their concentrations and then demonstrated this method at a field site. Based on a review of academic literature and technical documents, a three-step method was created that incorporates hydrogen peroxide digestion, zinc chloride density separation with centrifugation, and thermogravimetric analysis-Fourier transform infrared (TGA-FTIR) spectroscopy. Testing in the laboratory with polymer-spiked sediment showed high recovery efficiency (≈ 99.9%) in extraction and reliably identified polyethylene based on characteristic thermal and spectral signatures. The method was then applied to field-collected stormwater and sediment samples from a rural roadway site in Palmyra, Virginia. TGA-FTIR evaluation of field samples indicated that eight of the 12 samples contained MPs associated with acrylic road markings and tire wear particles. One sample was found to contain traces of degraded erosion control netting. MP concentrations in these samples ranged from 0.135 mg/g to 1.75 mg/g, with acrylic road markings and tire wear particles being the predominant type. In this regard, this method is reproducible and thus may characterize MPs in diverse roadway environments. The study also showed that one limitation of the method is that it cannot identify MPs in samples containing an unknown mixture of polymer types. This limitation is due to some polymers having overlapping thermal degradation curves and overlapping infrared spectra. Therefore, the TGA-FTIR evaluation cannot distinguish which types of polymers are necessarily present in a given sample. A modification is proposed that replaces or complements the TGA-FTIR evaluation with pyrolysis-gas chromatography-mass spectrometry. The Virginia Department of Transportation can thus use this method, or a proposed enhancement thereof, to evaluate existing maintenance practices should regulatory conditions necessitate such work. This method may also inform the development of mitigation strategies for MPs required to comply with potential future regulatory requirements. AN - dot:93991 DA - 2026-10-01 ET - Final Report KW - Plasticity KW - Recycled materials KW - Asphalt pavements KW - Erosion control KW - Road marking materials KW - Environment KW - Roads KW - Testing KW - Laboratory tests KW - Zinc KW - Maintenance KW - Tires KW - Literature reviews KW - Microplastics KW - recycled plastic modified asphalt pavement KW - erosion control netting KW - road marking paint LA - English PB - Virginia Transportation Research Council (VTRC) PY - 2026 SN - FHWA/VTRC 27-R09 TI - Development of a Method to Identify and Quantify Microplastics Generated From the Roadway Environment M3 - Tech Report N1 - United States N1 - 125095 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93991 ER -
Best Practices for Local Reviews of Industrial Developments [Research Project Brief]

Dougald, Lance E. ;

Nothstine, Jessica

2026-10-01 | PDF

For the purposes of determining the estimated benefits of eliminating undesignated truck parking in localities throughout Virginia (with emphasis of those along the freight corridors) the total average yearly benefit per locality is estimated at $17,654 for crashes and $1,387 for a 1-unit increase in ordinance quality score.

10/19/2026

Title : Best Practices for Local Reviews of Industrial Developments [Research Project Brief] Creator(s) : Dougald, Lance E.;Nothstine, Jessica;Xu, Yiqing;Gillespie, James S.; Corporate Creator(s) : Virginia Transportation Research Council (VTRC) Corporate Contributor(s) : Virginia. Department of Transportation;United States. Department of Transportation. Federal Highway Administration; Published Date : 2026-10-01 Report Number : R27-08 URL : https://rosap.ntl.bts.gov/view/dot/93990
Dougald, L. E., Nothstine, J., Xu, Y., & Gillespie, J. S. (2026). Best Practices for Local Reviews of Industrial Developments [Research Project Brief] (Report No. R27-08). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/93990

Dougald, Lance E., Jessica Nothstine, Yiqing Xu, and James S. Gillespie. Best Practices for Local Reviews of Industrial Developments [Research Project Brief]. Report no. R27-08. Virginia Transportation Research Council (VTRC), 2026. https://rosap.ntl.bts.gov/view/dot/93990.

Dougald, Lance E., et al. Best Practices for Local Reviews of Industrial Developments [Research Project Brief]. Virginia Transportation Research Council (VTRC), 2026, Report no. R27-08, ROSA P. https://rosap.ntl.bts.gov/view/dot/93990.
Export RIS Citation Information. TY - Brief AU - Dougald, Lance E. AU - Nothstine, Jessica AU - Xu, Yiqing AU - Gillespie, James S. A2 - Virginia Transportation Research Council (VTRC) A3 - Virginia. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - For the purposes of determining the estimated benefits of eliminating undesignated truck parking in localities throughout Virginia (with emphasis of those along the freight corridors) the total average yearly benefit per locality is estimated at $17,654 for crashes and $1,387 for a 1-unit increase in ordinance quality score. AN - dot:93990 DA - 2026-10-01 ET - Research Project Brief KW - Industrial areas KW - Ordinances KW - Trucks KW - Parking KW - Freight service KW - Data analysis KW - Literature reviews KW - Electronic commerce KW - Zoning KW - Land use KW - Infrastructure KW - Transportation safety KW - Policy KW - Facilities KW - Best practices KW - Industrial Developments KW - Truck Parking LA - English PB - Virginia Transportation Research Council (VTRC) PY - 2026 SN - R27-08 TI - Best Practices for Local Reviews of Industrial Developments [Research Project Brief] M3 - Brief N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93990 ER -
Best Practices for Local Reviews of Industrial Developments

Dougald, Lance E. ;

Nothstine, Jessica

2026-10-01 | PDF

Undesignated truck parking is one of the consequences of the growth in industrial freight activity. Truck drivers frequently park on roadway shoulders, off-ramps, vacant lots, and local streets near industrial and commercial facilities because truck stops are full, onsite staging is prohibited, and long delays at the facilities consume available ho ...

10/19/2026

Title : Best Practices for Local Reviews of Industrial Developments Creator(s) : Dougald, Lance E.;Nothstine, Jessica;Xu, Yiqing;Gillespie, James S.; Corporate Creator(s) : Virginia Transportation Research Council (VTRC) Corporate Contributor(s) : Virginia. Department of Transportation;United States. Department of Transportation. Federal Highway Administration; Published Date : 2026-10-01 Report Number : FHWA/VTRC 27-R08 URL : https://rosap.ntl.bts.gov/view/dot/93989
Dougald, L. E., Nothstine, J., Xu, Y., & Gillespie, J. S. (2026). Best Practices for Local Reviews of Industrial Developments (Report No. FHWA/VTRC 27-R08). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/93989

Dougald, Lance E., Jessica Nothstine, Yiqing Xu, and James S. Gillespie. Best Practices for Local Reviews of Industrial Developments. Report no. FHWA/VTRC 27-R08. Virginia Transportation Research Council (VTRC), 2026. https://rosap.ntl.bts.gov/view/dot/93989.

Dougald, Lance E., et al. Best Practices for Local Reviews of Industrial Developments. Virginia Transportation Research Council (VTRC), 2026, Report no. FHWA/VTRC 27-R08, ROSA P. https://rosap.ntl.bts.gov/view/dot/93989.
Export RIS Citation Information. TY - Tech Report AU - Dougald, Lance E. AU - Nothstine, Jessica AU - Xu, Yiqing AU - Gillespie, James S. A2 - Virginia Transportation Research Council (VTRC) A3 - Virginia. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - Undesignated truck parking is one of the consequences of the growth in industrial freight activity. Truck drivers frequently park on roadway shoulders, off-ramps, vacant lots, and local streets near industrial and commercial facilities because truck stops are full, onsite staging is prohibited, and long delays at the facilities consume available hours-of-service time. Although Virginia legislation has encouraged jurisdictions to identify freight corridors in their comprehensive plans, knowledge of proactive policies for industrial developments is limited at the local level. The purpose of this research was to develop guidance for local reviews of industrial developments that will enable localities to support VTrans' goals in the areas of industrial land use, truck parking, and freight mobility. Specific objectives were to (1) evaluate the level of detail in Virginia practices compared with best practices with respect to accommodating truck parking needs, (2) assess how these practices influence undesignated parking, and (3) identify locations where the greatest amount of undesignated truck parking occurs. The scope of the project entailed reviewing best practices in other states and reviewing policy and data at the local level as they relate to land use, truck parking, and freight mobility. The following conclusions were drawn from the research findings: (1) best practices with respect to local reviews of industrial developments include a detailed review process with expectations for the traffic impacts, parking, routing, and amenities and a set of supporting local ordinances for each of these areas; (2) the expansion of e-commerce-driven industrial developments and distribution centers has amplified the need for localities to update zoning ordinances; (3) the Virginia review of ordinances indicates that localities exhibit uneven treatment of freight‑related land use ordinances; (4) the moderate correlation of locality ordinance quality in Virginia and industrial site presence suggests that more industrialized localities are more likely to adopt detailed freight provisions in their zoning ordinances; (5) insufficient onsite parking at industrial facilities leads directly to undesignated parking on shoulders, ramps, and local streets, creating safety hazards and infrastructure damage; (6) undesignated parking in Virginia is not uniformly distributed and clusters around three roadway contexts-industrial queue, interchanges, and rest areas; and (7) the priority scoring cluster analysis adapted for Virginia use identifies interchange locations as the highest need based on the components of safety and undesignated parking instances and durations. Guidance was developed based on findings from the research tasks, with a focus on ordinance language that the Virginia Department of Transportation (VDOT) can share with localities. States identified in the literature review were the source of the initial template. Then, based on the review of Virginia ordinances and the parking analysis along major freight corridors, suggested language was provided across four key areas: applicant narrative, truck routing, parking (on and off site, with explicit consideration of staging), and amenities. The research recommends that VDOT's Transportation Mobility Planning Division (1) create a task group to review the guidance in the Appendix of this report, revise where appropriate, and share with localities as recommended ordinance amendment language and (2) apply the method provided in this report of using truck parking clusters to prioritize truck parking needs. AN - dot:93989 DA - 2026-10-01 ET - Final Report KW - Industrial areas KW - Ordinances KW - Trucks KW - Parking KW - Freight service KW - Data analysis KW - Literature reviews KW - Electronic commerce KW - Zoning KW - Land use KW - Infrastructure KW - Transportation safety KW - Policy KW - Facilities KW - Best practices KW - Industrial Developments KW - Truck Parking LA - English PB - Virginia Transportation Research Council (VTRC) PY - 2026 SN - FHWA/VTRC 27-R08 TI - Best Practices for Local Reviews of Industrial Developments M3 - Tech Report N1 - United States N1 - 126697 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93989 ER -
Impact Damage Characterization and Damage Tolerance of Composite Sandwich Airframe Structures

Tomblin, John ;

Raju, K. S.

2001-01-01 | PDF

The use of composite sandwich construction is rapidly increasing in current and future airframe designs. Typically, these sandwich constructions use thin gage composite facesheets (0.020″ to 0.045″) which are co-cured to honeycomb and foam cores. Due to the nature of these structures, damage tolerance is more complex than conventional laminated str ...

10/19/2026

Title : Impact Damage Characterization and Damage Tolerance of Composite Sandwich Airframe Structures Creator(s) : Tomblin, John;Raju, K. S.;Liew, J;Smith, B. L.; Corporate Creator(s) : Wichita State University Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research Published Date : 2001-01-01 Report Number : DOT/FAA/AR-00/44 URL : https://rosap.ntl.bts.gov/view/dot/93988
Tomblin, J., Raju, K. S., Liew, J., & Smith, B. L. (2001). Impact Damage Characterization and Damage Tolerance of Composite Sandwich Airframe Structures (Report No. DOT/FAA/AR-00/44). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93988

Tomblin, John, K. S. Raju, J Liew, and B. L. Smith. Impact Damage Characterization and Damage Tolerance of Composite Sandwich Airframe Structures. Report no. DOT/FAA/AR-00/44. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001. https://rosap.ntl.bts.gov/view/dot/93988.

Tomblin, John, et al. Impact Damage Characterization and Damage Tolerance of Composite Sandwich Airframe Structures. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001, Report no. DOT/FAA/AR-00/44, ROSA P. https://rosap.ntl.bts.gov/view/dot/93988.
Export RIS Citation Information. TY - Tech Report AU - Tomblin, John AU - Raju, K. S. AU - Liew, J AU - Smith, B. L. A2 - Wichita State University A3 - United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research AB - The use of composite sandwich construction is rapidly increasing in current and future airframe designs. Typically, these sandwich constructions use thin gage composite facesheets (0.020″ to 0.045″) which are co-cured to honeycomb and foam cores. Due to the nature of these structures, damage tolerance is more complex than conventional laminated structures. Besides typical damage concerns such as through penetration and delamination, additional modes including core crushing and facesheet debonding must also be addressed. This complicates the certification process by introducing undefined Allowable Damage Limits (ADL) and Critical Damage Thresholds (CDT) as related to the ultimate and limit load carrying capability of the structure. In this report, the preliminary results of the damage resistance and tolerance experiments on sandwich panels are presented. The testing capabilities developed at the Wichita State University to support this program are presented in detail. AN - dot:93988 DA - 2001-01-01 ET - Final Report KW - Composite materials KW - Sandwich construction KW - Composite construction KW - Honeycomb structures KW - Engineering tolerances KW - Impact KW - Residual strength LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 2001 SN - DOT/FAA/AR-00/44 TI - Impact Damage Characterization and Damage Tolerance of Composite Sandwich Airframe Structures M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93988 ER -
Mixed Method Approach to Develop a Framework for Adoption of Intelligent Speed-Assist Technology (ISAT)

Appleyard, Bruce S.

;

Honey, Megan

2025-10-01 | PDF

Speeding remains a leading contributor to roadway fatalities in the United States, playing a role in approximately one-third of all deaths on US roads. Vulnerable Road Users (VRUs), particularly pedestrians and cyclists, face disproportionate risks due to vehicle speed and design. Traditional methods of speed control, such as roadway design modific ...

10/19/2026

Title : Mixed Method Approach to Develop a Framework for Adoption of Intelligent Speed-Assist Technology (ISAT) Creator(s) : Appleyard, Bruce S.;Honey, Megan;Cranford, Madison;Pande, Anurag;Salazar, Gianna;Machiani, Sahar Ghanipoor;Jahangiri, Arash;Baradaran, Nusheen; Corporate Creator(s) : Center for Pedestrian and Bicyclist Safety (CPBS) Tier-1 University Transportation Center (UTC) Corporate Contributor(s) : United States. Department of Transportation. University Transportation Centers (UTC) Program;United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology; Published Date : 2025-10-01 Report Number : 24SDSU01 DOI : https://doi.org/10.21949/80jb-jb97
Appleyard, B. S., Honey, M., Cranford, M., Pande, A., Salazar, G., Machiani, S. G., Jahangiri, A., & Baradaran, N. (2025). Mixed Method Approach to Develop a Framework for Adoption of Intelligent Speed-Assist Technology (ISAT) (Report No. 24SDSU01). Center for Pedestrian and Bicyclist Safety (CPBS) Tier-1 University Transportation Center (UTC). https://doi.org/10.21949/80jb-jb97

Appleyard, Bruce S., Megan Honey, Madison Cranford, Anurag Pande, Gianna Salazar, Sahar Ghanipoor Machiani, Arash Jahangiri, and Nusheen Baradaran. Mixed Method Approach to Develop a Framework for Adoption of Intelligent Speed-Assist Technology (ISAT). Report no. 24SDSU01. Center for Pedestrian and Bicyclist Safety (CPBS) Tier-1 University Transportation Center (UTC), 2025. https://doi.org/10.21949/80jb-jb97.

Appleyard, Bruce S., et al. Mixed Method Approach to Develop a Framework for Adoption of Intelligent Speed-Assist Technology (ISAT). Center for Pedestrian and Bicyclist Safety (CPBS) Tier-1 University Transportation Center (UTC), 2025, Report no. 24SDSU01, ROSA P. https://doi.org/10.21949/80jb-jb97.
Export RIS Citation Information. TY - Tech Report AU - Appleyard, Bruce S. AU - Honey, Megan AU - Cranford, Madison AU - Pande, Anurag AU - Salazar, Gianna AU - Machiani, Sahar Ghanipoor AU - Jahangiri, Arash AU - Baradaran, Nusheen A2 - Center for Pedestrian and Bicyclist Safety (CPBS) Tier-1 University Transportation Center (UTC) A3 - United States. Department of Transportation. University Transportation Centers (UTC) Program A3 - United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology AB - Speeding remains a leading contributor to roadway fatalities in the United States, playing a role in approximately one-third of all deaths on US roads. Vulnerable Road Users (VRUs), particularly pedestrians and cyclists, face disproportionate risks due to vehicle speed and design. Traditional methods of speed control, such as roadway design modifications and law enforcement, have notable limitations. This study analyzes speeding-related fatalities with a focus on understanding risks to VRUs and the potential for Intelligent Speed Assist Technology (ISAT) to mitigate these harms. Analysis of 2012-2022 federal Fatality Analysis Reporting System (FARS) data shows that 5.1% of all speeding-related fatalities involve pedestrians and cyclists. Most vehicles were traveling well above posted speed limits between 20 and 40 mph, the average speed in pedestrian deaths on 25 mph roads being 122% over the limit. Heavier vehicles such as SUVs are also overrepresented in fatal crashes. This report evaluates the cost-effectiveness of ISAT at various levels of implementation. At 90-100% effectiveness, ISAT could prevent over 95,000 deaths and generate up to $1.5 trillion in societal benefits. Additional interventions, including speed cameras, design changes, and dynamic speed limits, are also reviewed as essential complements to ISAT in advancing traffic safety goals. AN - dot:93987 DA - 2025-10-01 DO - https://doi.org/10.21949/80jb-jb97 ET - Final Research Report (October 2025) KW - Speed KW - Technology KW - Transportation safety KW - Vulnerable road users LA - English PB - Center for Pedestrian and Bicyclist Safety (CPBS) Tier-1 University Transportation Center (UTC) PY - 2025 SN - 24SDSU01 TI - Mixed Method Approach to Develop a Framework for Adoption of Intelligent Speed-Assist Technology (ISAT) M3 - Tech Report N1 - United States N1 - 69A3552348336 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93987 ER -
Identifying Pavement Improvement Projects for Enhanced Safety [Project Summary Report]

Gharaibeh, Nasir G. ;

Kutela, Boniphace

2026-04-30 | PDF

Traffic crashes and the associated injuries and fatalities remain a major public safety concern in Texas and across the United States. Crashes are complex events influenced by a wide range of factors related to the driver, vehicle, roadway, traffic stream, and weather. Understanding how these factors contribute to crash occurrence is essential for ...

10/19/2026

Title : Identifying Pavement Improvement Projects for Enhanced Safety [Project Summary Report] Creator(s) : Gharaibeh, Nasir G.;Kutela, Boniphace;Tarnini, Yussuf;Talebzadeh, Mohammad;Gao, Lu;Katale, Tejaswini; Corporate Creator(s) : Texas A&M University. Texas Transportation Institute;University of Houston; Corporate Contributor(s) : Texas Department of Transportation. Research and Technology Implementation Office;United States. Department of Transportation. Federal Highway Administration; Published Date : 2026-04-30 Report Number : 0-7177 URL : https://rosap.ntl.bts.gov/view/dot/93986
Gharaibeh, N. G., Kutela, B., Tarnini, Y., Talebzadeh, M., Gao, L., & Katale, T. (2026). Identifying Pavement Improvement Projects for Enhanced Safety [Project Summary Report] (Report No. 0-7177). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/93986

Gharaibeh, Nasir G., Boniphace Kutela, Yussuf Tarnini, Mohammad Talebzadeh, Lu Gao, and Tejaswini Katale. Identifying Pavement Improvement Projects for Enhanced Safety [Project Summary Report]. Report no. 0-7177. Texas Transportation Institute. Texas A&M University, 2026. https://rosap.ntl.bts.gov/view/dot/93986.

Gharaibeh, Nasir G., et al. Identifying Pavement Improvement Projects for Enhanced Safety [Project Summary Report]. Texas Transportation Institute. Texas A&M University, 2026, Report no. 0-7177, ROSA P. https://rosap.ntl.bts.gov/view/dot/93986.
Export RIS Citation Information. TY - Brief AU - Gharaibeh, Nasir G. AU - Kutela, Boniphace AU - Tarnini, Yussuf AU - Talebzadeh, Mohammad AU - Gao, Lu AU - Katale, Tejaswini A2 - Texas A&M University. Texas Transportation Institute A2 - University of Houston A3 - Texas Department of Transportation. Research and Technology Implementation Office A3 - United States. Department of Transportation. Federal Highway Administration AB - Traffic crashes and the associated injuries and fatalities remain a major public safety concern in Texas and across the United States. Crashes are complex events influenced by a wide range of factors related to the driver, vehicle, roadway, traffic stream, and weather. Understanding how these factors contribute to crash occurrence is essential for identifying effective safety improvements. This project focused on evaluating the impact of pavement-related factors on crash occurrence to support the Texas Department of Transportation (TxDOT) in identifying candidate sites for pavement safety improvements. Pavement surface condition factors are of particular interest to highway agencies because these factors fall directly within their control and can be addressed through maintenance and rehabilitation (M&R) treatments. AN - dot:93986 DA - 2026-04-30 ET - Project Summary Report KW - Crash risk forecasting KW - Data analysis KW - Highway safety KW - Pavement distress KW - Roughness KW - Safety analysis KW - Skid resistance KW - Rehabilitation LA - English PB - Texas Transportation Institute. Texas A&M University PY - 2026 SN - 0-7177 TI - Identifying Pavement Improvement Projects for Enhanced Safety [Project Summary Report] M3 - Brief N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93986 ER -
Determination of Temperature/Moisture Sensitive Composite Properties

Tomblin, J. S. ;

Salah, L.

2001-09-01 | PDF

An investigation of the temperature and moisture sensitive composite properties was conducted. Results provide an evaluation of the degree of conservatism of the 50°F margin from glass transition values commonly used to determine a material system's operational limit (MOL). A series of dynamic mechanical analysis (DMA) and static mechanical tests w ...

10/19/2026

Title : Determination of Temperature/Moisture Sensitive Composite Properties Creator(s) : Tomblin, J. S.;Salah, L.;Ng, Y. C.; Corporate Creator(s) : National Institute for Aviation Research (U.S.);Wichita State University; Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research Published Date : 2001-09-01 Report Number : DOT/FAA/AR-01/40 URL : https://rosap.ntl.bts.gov/view/dot/93985
Tomblin, J. S., Salah, L., & Ng, Y. C. (2001). Determination of Temperature/Moisture Sensitive Composite Properties (Report No. DOT/FAA/AR-01/40). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93985

Tomblin, J. S., L. Salah, and Y. C. Ng. Determination of Temperature/Moisture Sensitive Composite Properties. Report no. DOT/FAA/AR-01/40. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001. https://rosap.ntl.bts.gov/view/dot/93985.

Tomblin, J. S., et al. Determination of Temperature/Moisture Sensitive Composite Properties. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001, Report no. DOT/FAA/AR-01/40, ROSA P. https://rosap.ntl.bts.gov/view/dot/93985.
Export RIS Citation Information. TY - Tech Report AU - Tomblin, J. S. AU - Salah, L. AU - Ng, Y. C. A2 - National Institute for Aviation Research (U.S.) A2 - Wichita State University A3 - United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research AB - An investigation of the temperature and moisture sensitive composite properties was conducted. Results provide an evaluation of the degree of conservatism of the 50°F margin from glass transition values commonly used to determine a material system's operational limit (MOL). A series of dynamic mechanical analysis (DMA) and static mechanical tests were performed using specimens conditioned at three relative humidity levels and tested at six different temperatures for two commonly used 270°F cure prepreg systems. This report documents the results obtained from the DMA and static mechanical tests from which moisture and temperature sensitive properties can be determined. Limitations of the scope of this project are addressed as a means of providing recommendations for future research. AN - dot:93985 DA - 2001-09-01 ET - Final Report KW - Composite materials KW - Temperature KW - Dynamic stability KW - Humidity KW - Moisture content KW - Glass transition temperature LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 2001 SN - DOT/FAA/AR-01/40 TI - Determination of Temperature/Moisture Sensitive Composite Properties M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93985 ER -
The Effect of Loading Parameters on Fatigue of Composite Laminates: Part V

Han, H. T. ;

Choi, S. W.

2001-06-01 | PDF

This report is the fifth in a series of reports on the damage growth of notched and visible impact-damaged AS4/3501-6 graphite/epoxy quasi-isotropic laminates under long-term mechanical fatigue loading. The effects of load type, load level, load sequence, and spectrum modification are evaluated in this study. X-ray radiography is taken of the test ...

10/19/2026

Title : The Effect of Loading Parameters on Fatigue of Composite Laminates: Part V Creator(s) : Han, H. T.;Choi, S. W.; Corporate Creator(s) : University of California, Los Angeles. Mechanical and Aerospace Engineering Department Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research Published Date : 2001-06-01 Report Number : DOT/FAA/AR-01/24 URL : https://rosap.ntl.bts.gov/view/dot/93984
Han, H. T., & Choi, S. W. (2001). The Effect of Loading Parameters on Fatigue of Composite Laminates: Part V (Report No. DOT/FAA/AR-01/24). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93984

Han, H. T. and S. W. Choi. The Effect of Loading Parameters on Fatigue of Composite Laminates: Part V. Report no. DOT/FAA/AR-01/24. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001. https://rosap.ntl.bts.gov/view/dot/93984.

Han, H. T., and S. W. Choi The Effect of Loading Parameters on Fatigue of Composite Laminates: Part V. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001, Report no. DOT/FAA/AR-01/24, ROSA P. https://rosap.ntl.bts.gov/view/dot/93984.
Export RIS Citation Information. TY - Tech Report AU - Han, H. T. AU - Choi, S. W. A2 - University of California, Los Angeles. Mechanical and Aerospace Engineering Department A3 - United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research AB - This report is the fifth in a series of reports on the damage growth of notched and visible impact-damaged AS4/3501-6 graphite/epoxy quasi-isotropic laminates under long-term mechanical fatigue loading. The effects of load type, load level, load sequence, and spectrum modification are evaluated in this study. X-ray radiography is taken of the test specimens to monitor the fatigue damage, which are in the form of splitting and delamination around the center hole of a specimen. AN - dot:93984 DA - 2001-06-01 ET - Final Report KW - Airplanes KW - Composite materials KW - Laminates KW - Epoxides KW - Impact loads KW - Engineering tolerances KW - Composite materials KW - Compressive strength KW - Damage KW - Fatigue(Mechanics) KW - Impact tests KW - Laminates KW - Load parameters KW - Static loads LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 2001 SN - DOT/FAA/AR-01/24 TI - The Effect of Loading Parameters on Fatigue of Composite Laminates: Part V M3 - Tech Report N1 - United States N1 - 95-G-021 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93984 ER -
Video Landing Parameter Survey: Honolulu International Airport

Barnes, T. ;

DeFiore, T.

2001-05-01 | PDF

The Federal Aviation Administration (FAA) William J. Hughes Technical Center is conducting a series of video landing parameter surveys at high-activity commercial airports to acquire a better understanding of typical landing contact conditions for a wide variety of aircraft and airports as they relate to current aircraft design criteria and practic ...

10/19/2026

Title : Video Landing Parameter Survey: Honolulu International Airport Creator(s) : Barnes, T.;DeFiore, T.;Micklos, R.; Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. Airport and Aircraft Safety Research and Development Division. Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research Published Date : 2001-05-01 Report Number : DOT/FAA/AR-OO/72 URL : https://rosap.ntl.bts.gov/view/dot/93983
Barnes, T., DeFiore, T., & Micklos, R. (2001). Video Landing Parameter Survey: Honolulu International Airport (Report No. DOT/FAA/AR-OO/72). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93983

Barnes, T., T. DeFiore, and R. Micklos. Video Landing Parameter Survey: Honolulu International Airport. Report no. DOT/FAA/AR-OO/72. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001. https://rosap.ntl.bts.gov/view/dot/93983.

Barnes, T., et al. Video Landing Parameter Survey: Honolulu International Airport. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001, Report no. DOT/FAA/AR-OO/72, ROSA P. https://rosap.ntl.bts.gov/view/dot/93983.
Export RIS Citation Information. TY - Tech Report AU - Barnes, T. AU - DeFiore, T. AU - Micklos, R. A2 - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. Airport and Aircraft Safety Research and Development Division. A3 - United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research AB - The Federal Aviation Administration (FAA) William J. Hughes Technical Center is conducting a series of video landing parameter surveys at high-activity commercial airports to acquire a better understanding of typical landing contact conditions for a wide variety of aircraft and airports as they relate to current aircraft design criteria and practices. AB - This is the third of a series of landing parameter surveys. This report documents the results from a survey at Honolulu International Airport (HNL) performed in April 1996. Previous surveys were conducted first at John F. Kennedy International Airport (JFK) in June 1994 and later at Washington National Airport (DCA) performed in June 1995. At HNL, four video cameras were temporarily installed along the south side of runway 8L. Video images of 332 heavy, wide-body transports were captured, analyzed, and the results presented herein. Landing parameters presented include sink rate; approach speed; touchdown pitch, roll, and yaw angles and rates; off-center distance; and the touchdown distance from the runway threshold. Wind and weather conditions were also recorded and landing weights were available for most landings. Since this program is only concerned with overall statistical usage information, all data were processed and are presented without regard to the airline or flight number. AB - This survey has reinforced the findings from the JFK survey concerning the landing impact parameters of heavy, wide-body aircraft. The results from this survey and the prior landing parameter surveys at JFK and DCA differ substantially from aircraft sink speeds reported 35 years ago during National Aeronautics and Space Administration (NASA) surveys. No other efforts to collect operational landing data were performed by either the FAA or NASA in the interim. AN - dot:93983 DA - 2001-05-01 ET - Final Report KW - Aircraft navigational aids KW - Aircraft operations KW - Approach KW - Landing aids KW - Wind factor LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 2001 SN - DOT/FAA/AR-OO/72 TI - Video Landing Parameter Survey: Honolulu International Airport M3 - Tech Report N1 - United States N1 - DTFA03-94-Z-0029 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93983 ER -
Commercial Off-The-Shelf (COTS) Avionics Software Study

Krodel, J.

2001-05-01 | PDF

A trend has developed via the economics of software development to streamline process and products of organizations, increase their efficiency, and reduce overall software development costs. System development activities associated with Radio Technical Commission for Aeronautics, Inc. (RTCA) document "Software Considerations in Airborne Systems and ...

10/19/2026

Title : Commercial Off-The-Shelf (COTS) Avionics Software Study Creator(s) : Krodel, J. Corporate Creator(s) : United Technologies Research Center Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research Published Date : 2001-05-01 Report Number : DOT/FAA/AR-01/26 URL : https://rosap.ntl.bts.gov/view/dot/93982
Krodel, J. (2001). Commercial Off-The-Shelf (COTS) Avionics Software Study (Report No. DOT/FAA/AR-01/26). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93982

Krodel, J.. Commercial Off-The-Shelf (COTS) Avionics Software Study. Report no. DOT/FAA/AR-01/26. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001. https://rosap.ntl.bts.gov/view/dot/93982.

Krodel, J. Commercial Off-The-Shelf (COTS) Avionics Software Study. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001, Report no. DOT/FAA/AR-01/26, ROSA P. https://rosap.ntl.bts.gov/view/dot/93982.
Export RIS Citation Information. TY - Tech Report AU - Krodel, J. A2 - United Technologies Research Center A3 - United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research AB - A trend has developed via the economics of software development to streamline process and products of organizations, increase their efficiency, and reduce overall software development costs. System development activities associated with Radio Technical Commission for Aeronautics, Inc. (RTCA) document "Software Considerations in Airborne Systems and Equipment Certification," DO-178B, can be expensive and, therefore, are the focus of efforts to increase efficiency and reduce costs. The motivation is even a bit beyond monetary resources as the scarcity of highly trained personnel that can develop such systems has also provided fuel to the attractiveness of considering reuse of commercial off-the-shelf (COTS) software. AN - dot:93982 DA - 2001-05-01 ET - Final Report KW - Avionics KW - Evaluation KW - Software KW - Electronics KW - Commerical Off-the Shelf(COTS) LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 2001 SN - DOT/FAA/AR-01/26 TI - Commercial Off-The-Shelf (COTS) Avionics Software Study M3 - Tech Report N1 - United States N1 - DTFA03-99-C-00030 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93982 ER -
Effects of Surface Preparation on Long-Term Durability of Composite Adhesive Bonds

Bardis, J. ;

Kedward, K.

2001-04-01 | PDF

The long-term effects of surface preparation techniques for composite bonded joints are addressed. Several potential factors are evaluated, concentrating on the effects of peel plies and grit blasting on the fracture toughness and failure mode of adhesively bonded composites. An evaluation of the floating roller peel test configuration is described ...

10/19/2026

Title : Effects of Surface Preparation on Long-Term Durability of Composite Adhesive Bonds Creator(s) : Bardis, J.;Kedward, K.; Corporate Creator(s) : University of California, Santa Barbara Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research Published Date : 2001-04-01 Report Number : DOT/FAA/AR-01/8 URL : https://rosap.ntl.bts.gov/view/dot/93981
Bardis, J., & Kedward, K. (2001). Effects of Surface Preparation on Long-Term Durability of Composite Adhesive Bonds (Report No. DOT/FAA/AR-01/8). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93981

Bardis, J. and K. Kedward. Effects of Surface Preparation on Long-Term Durability of Composite Adhesive Bonds. Report no. DOT/FAA/AR-01/8. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001. https://rosap.ntl.bts.gov/view/dot/93981.

Bardis, J., and K. Kedward Effects of Surface Preparation on Long-Term Durability of Composite Adhesive Bonds. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001, Report no. DOT/FAA/AR-01/8, ROSA P. https://rosap.ntl.bts.gov/view/dot/93981.
Export RIS Citation Information. TY - Tech Report AU - Bardis, J. AU - Kedward, K. A2 - University of California, Santa Barbara A3 - United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research AB - The long-term effects of surface preparation techniques for composite bonded joints are addressed. Several potential factors are evaluated, concentrating on the effects of peel plies and grit blasting on the fracture toughness and failure mode of adhesively bonded composites. An evaluation of the floating roller peel test configuration is described, where the intent was to extract quantitative data from this commonly used quality control test method. Subsequently, an alternate form of the double cantilever beam (DCB) test was developed and used for a sequence of test evaluations. The research will aid the interpretation of a form of the wedge test where the usual aluminum adherends are replaced by composite adherends. AN - dot:93981 DA - 2001-04-01 ET - Final Report KW - Adhesion KW - Adhesives KW - Composite materials KW - Joints LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 2001 SN - DOT/FAA/AR-01/8 TI - Effects of Surface Preparation on Long-Term Durability of Composite Adhesive Bonds M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93981 ER -
Stress Analysis of In-Plane, Shear-Loaded, Adhesively Bonded Composite Joints and Assemblies

Kim, H. ;

Kedward, K.

2001-04-01 | PDF

Recent small aircraft that have been certified in the United States, such as the Cirrus SR20 and the Lancair Columbia 300, share similar structural attributes. Specifically, they are both of nearly all-composite construction and both make extensive use of adhesive bonding as a primary method for forming structural joints. Adhesive bonding has poten ...

10/19/2026

Title : Stress Analysis of In-Plane, Shear-Loaded, Adhesively Bonded Composite Joints and Assemblies Creator(s) : Kim, H.;Kedward, K.; Corporate Creator(s) : University of California, Santa Barbara Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research Published Date : 2001-04-01 Report Number : DOT/FAA/AR-01/7 URL : https://rosap.ntl.bts.gov/view/dot/93980
Kim, H., & Kedward, K. (2001). Stress Analysis of In-Plane, Shear-Loaded, Adhesively Bonded Composite Joints and Assemblies (Report No. DOT/FAA/AR-01/7). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93980

Kim, H. and K. Kedward. Stress Analysis of In-Plane, Shear-Loaded, Adhesively Bonded Composite Joints and Assemblies. Report no. DOT/FAA/AR-01/7. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001. https://rosap.ntl.bts.gov/view/dot/93980.

Kim, H., and K. Kedward Stress Analysis of In-Plane, Shear-Loaded, Adhesively Bonded Composite Joints and Assemblies. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001, Report no. DOT/FAA/AR-01/7, ROSA P. https://rosap.ntl.bts.gov/view/dot/93980.
Export RIS Citation Information. TY - Tech Report AU - Kim, H. AU - Kedward, K. A2 - University of California, Santa Barbara A3 - United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research AB - Recent small aircraft that have been certified in the United States, such as the Cirrus SR20 and the Lancair Columbia 300, share similar structural attributes. Specifically, they are both of nearly all-composite construction and both make extensive use of adhesive bonding as a primary method for forming structural joints. Adhesive bonding has potential for being a simple and cost-effective means by which large built-up structures can be assembled. Challenges to bonding exist in the areas regarding adhesive selection, proper surface preparation, and technician training as well as intelligent design and confidence in analyses. This report addresses the latter challenge by presenting an analysis methodology that can be used in the design of joints loaded in both tension and in-plane shear. Example calculations and applications to real structures are provided. AN - dot:93980 DA - 2001-04-01 ET - Final Report KW - Adhesion KW - Joining KW - Shear properties KW - Loads KW - Aerodynamic force KW - Cracking KW - General aviation LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 2001 SN - DOT/FAA/AR-01/7 TI - Stress Analysis of In-Plane, Shear-Loaded, Adhesively Bonded Composite Joints and Assemblies M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93980 ER -
Material Qualification and Equivalency for Polymer Matrix Composite Material Systems

Tomblin, J. S. ;

Ng, Y. C.

2001-04-01 | PDF

This document presents a qualification plan that will provide the detailed background information and engineering practices to help ensure the control of repeatable base material properties and processes, which are applied to both primary and secondary structures for aircraft products using composite materials. This qualification plan includes reco ...

10/19/2026

Title : Material Qualification and Equivalency for Polymer Matrix Composite Material Systems Creator(s) : Tomblin, J. S.;Ng, Y. C.;Raju, K. S.; Corporate Creator(s) : Wichita State University;National Institute for Aviation Research (U.S.); Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research Published Date : 2001-04-01 Report Number : DOT/FAA/AR-00/47 URL : https://rosap.ntl.bts.gov/view/dot/93979
Tomblin, J. S., Ng, Y. C., & Raju, K. S. (2001). Material Qualification and Equivalency for Polymer Matrix Composite Material Systems (Report No. DOT/FAA/AR-00/47). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93979

Tomblin, J. S., Y. C. Ng, and K. S. Raju. Material Qualification and Equivalency for Polymer Matrix Composite Material Systems. Report no. DOT/FAA/AR-00/47. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001. https://rosap.ntl.bts.gov/view/dot/93979.

Tomblin, J. S., et al. Material Qualification and Equivalency for Polymer Matrix Composite Material Systems. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001, Report no. DOT/FAA/AR-00/47, ROSA P. https://rosap.ntl.bts.gov/view/dot/93979.
Export RIS Citation Information. TY - Tech Report AU - Tomblin, J. S. AU - Ng, Y. C. AU - Raju, K. S. A2 - Wichita State University A2 - National Institute for Aviation Research (U.S.) A3 - United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research AB - This document presents a qualification plan that will provide the detailed background information and engineering practices to help ensure the control of repeatable base material properties and processes, which are applied to both primary and secondary structures for aircraft products using composite materials. This qualification plan includes recommendations for the original qualification as well as procedures to statistically establish equivalence to the original data set. The plan describes in detail the procedures to generate statistically based design allowables for both A- and B-basis applications. Specific test matrices are presented which produce lamina level composite material properties for various loading modes and environmental conditions for aircraft applications not exceeding 200oF. This plan only covers the initial material qualification at the lamina level and does not include procedures for laminate or higher-level building block tests. The general methodology, however, is applicable to a broader usage. AN - dot:93979 DA - 2001-04-01 ET - Final Report KW - Airframes KW - Composite materials KW - Materials KW - Polymers KW - Qualifications KW - Recommendations LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 2001 SN - DOT/FAA/AR-00/47 TI - Material Qualification and Equivalency for Polymer Matrix Composite Material Systems M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93979 ER -
The Effect of Loading Parameters on Fatigue of Composite Laminates: Part IV Information Systems

Hahn, H. T. ;

Turkgenc, O.

2000-12-01 | PDF

Damage tolerance, damage resistance and durability assessments of aircraft composite structures are essential components of certification. The certification procedure requires lengthy experimental validation of those assessments, although much research has been conducted to understand the behavior of polymer matrix composites under service conditio ...

10/19/2026

Title : The Effect of Loading Parameters on Fatigue of Composite Laminates: Part IV Information Systems Creator(s) : Hahn, H. T.;Turkgenc, O.; Corporate Creator(s) : University of California, Los Angeles. Mechanical and Aerospace Engineering Department Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research Published Date : 2000-12-01 Report Number : DOT/FAA/AR-00/48 URL : https://rosap.ntl.bts.gov/view/dot/93978
Hahn, H. T., & Turkgenc, O. (2000). The Effect of Loading Parameters on Fatigue of Composite Laminates: Part IV Information Systems (Report No. DOT/FAA/AR-00/48). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93978

Hahn, H. T. and O. Turkgenc. The Effect of Loading Parameters on Fatigue of Composite Laminates: Part IV Information Systems. Report no. DOT/FAA/AR-00/48. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2000. https://rosap.ntl.bts.gov/view/dot/93978.

Hahn, H. T., and O. Turkgenc The Effect of Loading Parameters on Fatigue of Composite Laminates: Part IV Information Systems. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2000, Report no. DOT/FAA/AR-00/48, ROSA P. https://rosap.ntl.bts.gov/view/dot/93978.
Export RIS Citation Information. TY - Tech Report AU - Hahn, H. T. AU - Turkgenc, O. A2 - University of California, Los Angeles. Mechanical and Aerospace Engineering Department A3 - United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research A4 - Shyprykevich, Peter AB - Damage tolerance, damage resistance and durability assessments of aircraft composite structures are essential components of certification. The certification procedure requires lengthy experimental validation of those assessments, although much research has been conducted to understand the behavior of polymer matrix composites under service conditions. A fair amount of data is available together with a number of analytical models in these areas of research. However, because of the vast number of parameters involved, a generic model is rather difficult to develop. The ultimate goal of this study is the identification of design parameters to be used in the development of information system tools that can help engineers synthesize different sets of data efficiently. AN - dot:93978 DA - 2000-12-01 ET - Final Report KW - Airplanes KW - Composite materials KW - Laminates KW - Engineering tolerances KW - Mechanical fatigue LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 2000 SN - DOT/FAA/AR-00/48 TI - The Effect of Loading Parameters on Fatigue of Composite Laminates: Part IV Information Systems M3 - Tech Report N1 - United States N1 - DTFA03-92-A-00003 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93978 ER -
Ballistic Experiments with Titanium and Aluminum Targets

Gogolowski, R. P. ;

Morgan, B. R.

2001-04-01 | PDF

This report describes experiments in penetration mechanics on 6Al-4V titanium and 2024-T3 aluminum. This work was accomplished by the Lawrence Livermore National Laboratory (LLNL) at the LLNL Terminal Ballistics Laboratory of the Physics Directorate under an Interagency Agreement between the Federal Aviation Administration (FAA) William J. Hughes T ...

10/19/2026

Title : Ballistic Experiments with Titanium and Aluminum Targets Creator(s) : Gogolowski, R. P.;Morgan, B. R.; Corporate Creator(s) : Lawrence Livermore National Laboratory Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research Published Date : 2001-04-01 Report Number : DOT/FAA/AR-01/21 URL : https://rosap.ntl.bts.gov/view/dot/93977
Gogolowski, R. P., & Morgan, B. R. (2001). Ballistic Experiments with Titanium and Aluminum Targets (Report No. DOT/FAA/AR-01/21). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93977

Gogolowski, R. P. and B. R. Morgan. Ballistic Experiments with Titanium and Aluminum Targets. Report no. DOT/FAA/AR-01/21. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001. https://rosap.ntl.bts.gov/view/dot/93977.

Gogolowski, R. P., and B. R. Morgan Ballistic Experiments with Titanium and Aluminum Targets. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001, Report no. DOT/FAA/AR-01/21, ROSA P. https://rosap.ntl.bts.gov/view/dot/93977.
Export RIS Citation Information. TY - Tech Report AU - Gogolowski, R. P. AU - Morgan, B. R. A2 - Lawrence Livermore National Laboratory A3 - United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research AB - This report describes experiments in penetration mechanics on 6Al-4V titanium and 2024-T3 aluminum. This work was accomplished by the Lawrence Livermore National Laboratory (LLNL) at the LLNL Terminal Ballistics Laboratory of the Physics Directorate under an Interagency Agreement between the Federal Aviation Administration (FAA) William J. Hughes Technical Center and the Department of Energy (DOE). The work was accomplished under the FAA's Aircraft Catastrophic Failure Prevention Program as part of its research into the turbine engine uncontainment event. The object of the experiments was to determine the ballistic speed limit of 6Al-4V alloy titanium and 2024-T3 alloy aluminum and the failure modes of the projectiles and targets. Data was obtained for both materials using various thickness plates of the test materials to simulate aircraft skins and various size and shape 6Al-4V alloy titanium projectiles. The results of this experimental work will be used to help define the type of material failures in material models of the DYNA3D finite element code, which are being developed/validated for evaluating aircraft/engine designs relative to the federal airworthiness standards and for improving mitigation/containment technology. AN - dot:93977 DA - 2001-04-01 ET - Final Report KW - Aluminum KW - Penetration resistance KW - Titanium KW - Aircraft KW - Aircraft safety KW - Aluminum KW - Aluminum alloy T3-2024 KW - Ballistics KW - Failure analysis KW - Finite element analysis KW - Gas turbine engines KW - Titanium LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 2001 SN - DOT/FAA/AR-01/21 TI - Ballistic Experiments with Titanium and Aluminum Targets M3 - Tech Report N1 - United States N1 - DTFA03-97-Z-90007 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93977 ER -
A Methodology to Predict the Empennage In-Flight Loads of a General Aviation Aircraft Using Backpropagation Neural Networks

Kim, D. ;

Marciniak, M.

2001-02-01 | PDF

Backpropagation neural networks were used to predict strains resulting from maneuver loads in the empennage structure of a Cessna 172P. The purpose of this research was to develop a methodology for the prediction of strains in the tail section of a general aviation aircraft that would not require installation of strain gages and to determine the mi ...

10/19/2026

Title : A Methodology to Predict the Empennage In-Flight Loads of a General Aviation Aircraft Using Backpropagation Neural Networks Creator(s) : Kim, D.;Marciniak, M.; Corporate Creator(s) : Embry-Riddle Aeronautical University Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research Published Date : 2001-02-01 Report Number : DOT/FAA/AR-00/50 URL : https://rosap.ntl.bts.gov/view/dot/93976
Kim, D., & Marciniak, M. (2001). A Methodology to Predict the Empennage In-Flight Loads of a General Aviation Aircraft Using Backpropagation Neural Networks (Report No. DOT/FAA/AR-00/50). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93976

Kim, D. and M. Marciniak. A Methodology to Predict the Empennage In-Flight Loads of a General Aviation Aircraft Using Backpropagation Neural Networks. Report no. DOT/FAA/AR-00/50. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001. https://rosap.ntl.bts.gov/view/dot/93976.

Kim, D., and M. Marciniak A Methodology to Predict the Empennage In-Flight Loads of a General Aviation Aircraft Using Backpropagation Neural Networks. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001, Report no. DOT/FAA/AR-00/50, ROSA P. https://rosap.ntl.bts.gov/view/dot/93976.
Export RIS Citation Information. TY - Tech Report AU - Kim, D. AU - Marciniak, M. A2 - Embry-Riddle Aeronautical University A3 - United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research AB - Backpropagation neural networks were used to predict strains resulting from maneuver loads in the empennage structure of a Cessna 172P. The purpose of this research was to develop a methodology for the prediction of strains in the tail section of a general aviation aircraft that would not require installation of strain gages and to determine the minimum set of sensors necessary for a prediction suitable for small aircraft. This report provides a methodology for determining in-flight tail loads using neural networks. The method does not require the installation of strain gages on each airplane. It is an inexpensive and effective technique for collecting empennage load spectra for small transport airplanes already in service where installation of strain gages are impractical. Linear accelerometer, angular accelerometer, rate gyro, and strain gage signals were collected in flight using DAQBook portable data acquisition system for dutch-roll, roll, sideslip left, sideslip right, stabilized g turn left, stabilized g turn right, and push-pull maneuvers at airspeeds of 65 KIAS, 80 KIAS, and 95 KIAS. The sensor signals were filtered and used to train the neural networks. Modular neural networks were used to predict the strains. The horizontal tail neural network was trained with c.g. Nz and x-, y-, and z-axis angular accelerometer signals and predicted 93% of all strains to within 50 he of measured values. The vertical tail neural network predicted 100% of all strains to within 50 he of measured values. AN - dot:93976 DA - 2001-02-01 ET - Final Report KW - Aircraft KW - Aircraft operations KW - Aviation KW - Backpropagation KW - Flight KW - Flight control systems KW - Flight recorders KW - Loads LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 2001 SN - DOT/FAA/AR-00/50 TI - A Methodology to Predict the Empennage In-Flight Loads of a General Aviation Aircraft Using Backpropagation Neural Networks M3 - Tech Report N1 - United States N1 - 93-G-026 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93976 ER -
Assessment of Probabilistic Certification Methodology for Composite Structures

Kan, H. P.

2001-01-01 | PDF

A sensitivity study has been conducted to assess the currently available probabilistic structural analysis methods. The influence of the distribution parameters on the probability of failure was investigated analytically. The significant parameters that have an impact on development of probabilistic certification procedures were identified. The tec ...

10/19/2026

Title : Assessment of Probabilistic Certification Methodology for Composite Structures Creator(s) : Kan, H. P. Corporate Creator(s) : Northrop Grumman Corporation Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center Published Date : 2001-01-01 Report Number : DOT/FAA/AR-00/74 URL : https://rosap.ntl.bts.gov/view/dot/93975
Kan, H. P. (2001). Assessment of Probabilistic Certification Methodology for Composite Structures (Report No. DOT/FAA/AR-00/74). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93975

Kan, H. P.. Assessment of Probabilistic Certification Methodology for Composite Structures. Report no. DOT/FAA/AR-00/74. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001. https://rosap.ntl.bts.gov/view/dot/93975.

Kan, H. P. Assessment of Probabilistic Certification Methodology for Composite Structures. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 2001, Report no. DOT/FAA/AR-00/74, ROSA P. https://rosap.ntl.bts.gov/view/dot/93975.
Export RIS Citation Information. TY - Tech Report AU - Kan, H. P. A2 - Northrop Grumman Corporation A3 - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center AB - A sensitivity study has been conducted to assess the currently available probabilistic structural analysis methods. The influence of the distribution parameters on the probability of failure was investigated analytically. The significant parameters that have an impact on development of probabilistic certification procedures were identified. The technical gaps which need to be filled for probabilistic certification of composite structures were discussed. AN - dot:93975 DA - 2001-01-01 ET - Final Report KW - Aircraft KW - Certification KW - Composite materials KW - Composite structures KW - Probability KW - Sensitivity analysis LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 2001 SN - DOT/FAA/AR-00/74 TI - Assessment of Probabilistic Certification Methodology for Composite Structures M3 - Tech Report N1 - United States N1 - DTFA03-98-F-IA024, 437-25-24 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93975 ER -

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