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Showing 441 - 460 of 637 results

Demonstration of the Placement of Stone Matrix Asphalt in Colorado

Harmelink, Donna ;

Aschenbrener, Tim

1995-03-01 | PDF

The Stone Matrix Asphalt (SMA) experimental feature on SH-119, from SH-52 East to Longmont, is the Colorado Department of Transportation's (CDOT's) first attempt under contract to construct test sections for evaluation. The project successfully demonstrated the design, production, and placement of the European SMA. The research experiment on the pr ...

10/05/2026

Title : Demonstration of the Placement of Stone Matrix Asphalt in Colorado Creator(s) : Harmelink, Donna;Aschenbrener, Tim;Wood, Kenneth; Corporate Creator(s) : Colorado. Department of Transportation Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 1995-03-01 Report Number : CDOT-DTD-R-95-1 URL : https://rosap.ntl.bts.gov/view/dot/93726
Harmelink, D., Aschenbrener, T., & Wood, K. (1995). Demonstration of the Placement of Stone Matrix Asphalt in Colorado (Report No. CDOT-DTD-R-95-1). Colorado. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/93726

Harmelink, Donna, Tim Aschenbrener, and Kenneth Wood. Demonstration of the Placement of Stone Matrix Asphalt in Colorado. Report no. CDOT-DTD-R-95-1. Colorado. Department of Transportation, 1995. https://rosap.ntl.bts.gov/view/dot/93726.

Harmelink, Donna, et al. Demonstration of the Placement of Stone Matrix Asphalt in Colorado. Colorado. Department of Transportation, 1995, Report no. CDOT-DTD-R-95-1, ROSA P. https://rosap.ntl.bts.gov/view/dot/93726.
Export RIS Citation Information. TY - Tech Report AU - Harmelink, Donna AU - Aschenbrener, Tim AU - Wood, Kenneth A2 - Colorado. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - The Stone Matrix Asphalt (SMA) experimental feature on SH-119, from SH-52 East to Longmont, is the Colorado Department of Transportation's (CDOT's) first attempt under contract to construct test sections for evaluation. The project successfully demonstrated the design, production, and placement of the European SMA. The research experiment on the project consisted of placing 11,000 tons (9,979,200 kg) of SMA using three different mix designs (two polymer stabilized mixtures and one fiber mixture). The two polymers were 1) Vestoplast S from Huls America and 2) PM-ID from Koch Materials Co. The fiber mixture used a cellulose fiber in pellet form from Arbocel. The material specifications used for the design of the SMA were adequate with a few exceptions. Several plant modifications were required to add the mineral filler and additives. Production through the plant was reduced significantly because of the addition of mineral filler. The rate of production was virtually cut in half from the normally expected 250 tons (226,800 kg) per hour to 150 tons (136,080 kg) per hour. Field performance data will be evaluated on an annual basis. Results will be available in approximately 3 years. Based on the European torture tests, it is expected that the SMAs will have very good field performance with respect to rutting and moisture damage. AN - dot:93726 DA - 1995-03-01 ET - Interim Report KW - Stone matrix asphalt KW - Polymer asphalt KW - Fibers KW - Additives KW - Cellulose KW - Fiber reinforced concrete KW - Materials KW - Mix design KW - Paving KW - Polymers KW - Productivity KW - Specifications KW - Test sections LA - English PB - Colorado. Department of Transportation PY - 1995 SN - CDOT-DTD-R-95-1 TI - Demonstration of the Placement of Stone Matrix Asphalt in Colorado M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93726 ER -
Resilient Modulus of Granular Soils With Fines Contents

Chang, Nien-Yin ;

Chiang, Hsien-Hsiang

1995-04-01 | PDF

This study examined the relationship of resilient modulus with the stabilometer R-values, and with the index properties of Colorado soils. A total of 39 resilient modulus tests were conducted, 20 in this test program and 19 in an earlier test program. Soil types ranged from A-I-a to A-7-6 with varying amounts of fines. Regression analyses were perf ...

10/05/2026

Title : Resilient Modulus of Granular Soils With Fines Contents Creator(s) : Chang, Nien-Yin;Chiang, Hsien-Hsiang;Jiang, Lieu-Ching; Corporate Creator(s) : Colorado. Department of Transportation Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 1995-04-01 Report Number : CDOT-DTD-R-95-9 URL : https://rosap.ntl.bts.gov/view/dot/93725
Chang, N. Y., Chiang, H. H., & Jiang, L. C. (1995). Resilient Modulus of Granular Soils With Fines Contents (Report No. CDOT-DTD-R-95-9). Colorado. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/93725

Chang, Nien-Yin, Hsien-Hsiang Chiang, and Lieu-Ching Jiang. Resilient Modulus of Granular Soils With Fines Contents. Report no. CDOT-DTD-R-95-9. Colorado. Department of Transportation, 1995. https://rosap.ntl.bts.gov/view/dot/93725.

Chang, Nien-Yin, et al. Resilient Modulus of Granular Soils With Fines Contents. Colorado. Department of Transportation, 1995, Report no. CDOT-DTD-R-95-9, ROSA P. https://rosap.ntl.bts.gov/view/dot/93725.
Export RIS Citation Information. TY - Tech Report AU - Chang, Nien-Yin AU - Chiang, Hsien-Hsiang AU - Jiang, Lieu-Ching A2 - Colorado. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - This study examined the relationship of resilient modulus with the stabilometer R-values, and with the index properties of Colorado soils. A total of 39 resilient modulus tests were conducted, 20 in this test program and 19 in an earlier test program. Soil types ranged from A-I-a to A-7-6 with varying amounts of fines. Regression analyses were performed to formulate the functional relationship using the least square fit. Two regression equations were formulated to relate resilient modulus to R-value (one linear and one nonlinear), and four linear regression equations to relate resilient modulus to percent fines content, plasticity index, uniformity coefficient, and mean grain size. In general, the values of the Correlation coefficients are small and care should be taken when using these equations, particularly for granular soil samples with less than 30% of fines. AN - dot:93725 DA - 1995-04-01 ET - Final Report KW - Equations KW - Fine materials KW - Grain size KW - Granular soils KW - Modulus of resilience KW - Plasticity index KW - Regression analysis KW - Standardization KW - Correlation analysis KW - R-value KW - Index properties LA - English PB - Colorado. Department of Transportation PY - 1995 SN - CDOT-DTD-R-95-9 TI - Resilient Modulus of Granular Soils With Fines Contents M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93725 ER -
A Documentation of Hot Mix Asphalt Overlays on 1-25 in 1994

Aschenbrener, Tim

1995-06-01 | PDF

In 1994 there were significant changes to the Colorado Department of Transportation's (CDOT's) both mix asphalt program. Several programs culminated at this time. These programs included 1) aggregate and mix specifications, 2) variable laboratory compactive efforts, 3) field verification, and 4) European testing equipment. Furthermore, the use of t ...

10/05/2026

Title : A Documentation of Hot Mix Asphalt Overlays on 1-25 in 1994 Creator(s) : Aschenbrener, Tim Corporate Creator(s) : Colorado. Department of Transportation Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 1995-06-01 Report Number : CDOT-DTD-R-95-14 URL : https://rosap.ntl.bts.gov/view/dot/93724
Aschenbrener, T. (1995). A Documentation of Hot Mix Asphalt Overlays on 1-25 in 1994 (Report No. CDOT-DTD-R-95-14). Colorado. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/93724

Aschenbrener, Tim. A Documentation of Hot Mix Asphalt Overlays on 1-25 in 1994. Report no. CDOT-DTD-R-95-14. Colorado. Department of Transportation, 1995. https://rosap.ntl.bts.gov/view/dot/93724.

Aschenbrener, Tim A Documentation of Hot Mix Asphalt Overlays on 1-25 in 1994. Colorado. Department of Transportation, 1995, Report no. CDOT-DTD-R-95-14, ROSA P. https://rosap.ntl.bts.gov/view/dot/93724.
Export RIS Citation Information. TY - Tech Report AU - Aschenbrener, Tim A2 - Colorado. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - In 1994 there were significant changes to the Colorado Department of Transportation's (CDOT's) both mix asphalt program. Several programs culminated at this time. These programs included 1) aggregate and mix specifications, 2) variable laboratory compactive efforts, 3) field verification, and 4) European testing equipment. Furthermore, the use of the new SUPERPAVE binder tests and gyratory compactor will be implemented soon in Colorado. Coincidentally, 1994 was one of the busiest paving seasons for the COOT in quite some time. As a result, nine different projects were paved on the 1-25 corridor. Furthermore, the use of the new SUPERPAVE binder tests and gyratory compactor will be implemented soon in Colorado. The purpose of this paper is to document the HMA properties used on the projects for 1-25. This will provide information that can be correlated to the long-term performance of these pavements 5, 10 and hopefully even 15 years into the future. The tracking of these pavements' performance will then provide valuable information for the development or modification of specifications in the future. They may also provide new data for the use of life-cycle cost analysis, and the use of life-cycle cost analysis, and the implementation of the SUPERPAVE binder and gyratory recommendations. AN - dot:93724 DA - 1995-06-01 ET - Final Report KW - Hot mix asphalt KW - Field tests KW - Performance KW - Superpave KW - Compactors KW - Documents KW - Life cycle costing KW - Pavement overlays KW - Pavement performance KW - Properties of materials KW - Time duration KW - Field Performance KW - European Testing Equipment KW - SUPERPAVE Gyratory LA - English PB - Colorado. Department of Transportation PY - 1995 SN - CDOT-DTD-R-95-14 TI - A Documentation of Hot Mix Asphalt Overlays on 1-25 in 1994 M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93724 ER -
Factors Affecting the Inter-Laboratory Reproducibility of the Bulk Specific Gravity of Samples Compacted Using the Texas Gyratory Compactor [Final Report]

MacKean, Charles

1995-06-01 | PDF

The Colorado Department of Transportation (CDOT) uses the inter-laboratory variation of bulk specific gravity results from compacted asphalt mix samples to measure the reproducibility of laboratory compactive efforts. Matched asphalt mixes tested in different laboratories had average differences of sample bulk specific gravities which were statisti ...

10/05/2026

Title : Factors Affecting the Inter-Laboratory Reproducibility of the Bulk Specific Gravity of Samples Compacted Using the Texas Gyratory Compactor [Final Report] Creator(s) : MacKean, Charles Corporate Creator(s) : Colorado. Department of Transportation Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 1995-06-01 Report Number : CDOT-DTD-R-95-8 URL : https://rosap.ntl.bts.gov/view/dot/93723
MacKean, C. (1995). Factors Affecting the Inter-Laboratory Reproducibility of the Bulk Specific Gravity of Samples Compacted Using the Texas Gyratory Compactor [Final Report] (Report No. CDOT-DTD-R-95-8). Colorado. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/93723

MacKean, Charles. Factors Affecting the Inter-Laboratory Reproducibility of the Bulk Specific Gravity of Samples Compacted Using the Texas Gyratory Compactor [Final Report]. Report no. CDOT-DTD-R-95-8. Colorado. Department of Transportation, 1995. https://rosap.ntl.bts.gov/view/dot/93723.

MacKean, Charles Factors Affecting the Inter-Laboratory Reproducibility of the Bulk Specific Gravity of Samples Compacted Using the Texas Gyratory Compactor [Final Report]. Colorado. Department of Transportation, 1995, Report no. CDOT-DTD-R-95-8, ROSA P. https://rosap.ntl.bts.gov/view/dot/93723.
Export RIS Citation Information. TY - Tech Report AU - MacKean, Charles A2 - Colorado. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - The Colorado Department of Transportation (CDOT) uses the inter-laboratory variation of bulk specific gravity results from compacted asphalt mix samples to measure the reproducibility of laboratory compactive efforts. Matched asphalt mixes tested in different laboratories had average differences of sample bulk specific gravities which were statistically significant during the 1993 paving season. This investigation identified and addressed some of the causes of these inter-laboratory differences in sample bulk specific gravities. The findings have implications for the Texas gyratory compactor and possibly for the SUPERPAVE gyratory compactor. When this investigation's recommendations were implemented in Colorado, inter-laboratory differences in average bulk specific gravity results dropped dramatically. Absolute differences between CDOT Region laboratories and the CDOT Central laboratory decreased from an average of 0.016 in 1993 to 0.002 in 1994. By taking the following steps, repeatable compaction results were achieved. Formal, scheduled equipment calibration verification was necessary for all laboratories testing asphalt mixes. Also, the loading of the mold and the compaction procedure had to be standardized to a very high degree. The loading and compaction methods must minimize segregation, have strict time limits, be achievable by novice testers, be easily taught, and have high operator acceptance to minimize intentional procedure modification. AN - dot:93723 DA - 1995-06-01 ET - Final Report KW - Aggregate segregation KW - Asphalt mixtures KW - Calibration KW - Compaction KW - Compactors KW - Laboratories KW - Mechanical analysis KW - Test procedures KW - Samples KW - Specific gravity KW - Hot mix asphalt KW - Superpave KW - bulk specific gravity KW - Texas gyratory compactor KW - inter-laboratory repeatability KW - gyratory compactor LA - English PB - Colorado. Department of Transportation PY - 1995 SN - CDOT-DTD-R-95-8 TI - Factors Affecting the Inter-Laboratory Reproducibility of the Bulk Specific Gravity of Samples Compacted Using the Texas Gyratory Compactor [Final Report] M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93723 ER -
Efficient Construction Material Testing and Inspection Based on Risk Levels

Harper, Christofer ;

Nguyen, Phuong

2026-08-14 | PDF

The South Dakota Department of Transportation (SDDOT) uses a traditional approach to construction inspection and material testing. Research in the early 1990s, Project SD91-05: Essential Testing and Inspection Levels help set the current inspection and testing program. Due to this report being more than 30 years old, SDDOT has taken steps to review ...

10/05/2026

Title : Efficient Construction Material Testing and Inspection Based on Risk Levels Creator(s) : Harper, Christofer;Nguyen, Phuong;Tran, Dan;Taylor, Timothy;Elliott, Jon; Corporate Creator(s) : Colorado State University Corporate Contributor(s) : South Dakota. Department of Transportation. Office of Research;United States. Department of Transportation. Federal Highway Administration; Published Date : 2026-08-14 Report Number : SD2024-02 URL : https://rosap.ntl.bts.gov/view/dot/93722
Harper, C., Nguyen, P., Tran, D., Taylor, T., & Elliott, J. (2026). Efficient Construction Material Testing and Inspection Based on Risk Levels (Report No. SD2024-02). South Dakota. Department of Transportation. Office of Research. https://rosap.ntl.bts.gov/view/dot/93722

Harper, Christofer, Phuong Nguyen, Dan Tran, Timothy Taylor, and Jon Elliott. Efficient Construction Material Testing and Inspection Based on Risk Levels. Report no. SD2024-02. South Dakota. Department of Transportation. Office of Research, 2026. https://rosap.ntl.bts.gov/view/dot/93722.

Harper, Christofer, et al. Efficient Construction Material Testing and Inspection Based on Risk Levels. South Dakota. Department of Transportation. Office of Research, 2026, Report no. SD2024-02, ROSA P. https://rosap.ntl.bts.gov/view/dot/93722.
Export RIS Citation Information. TY - Tech Report AU - Harper, Christofer AU - Nguyen, Phuong AU - Tran, Dan AU - Taylor, Timothy AU - Elliott, Jon A2 - Colorado State University A3 - South Dakota. Department of Transportation. Office of Research A3 - United States. Department of Transportation. Federal Highway Administration AB - The South Dakota Department of Transportation (SDDOT) uses a traditional approach to construction inspection and material testing. Research in the early 1990s, Project SD91-05: Essential Testing and Inspection Levels help set the current inspection and testing program. Due to this report being more than 30 years old, SDDOT has taken steps to review the feasibility of implementing risk-based approaches to construction inspection and material testing. Risk-based approaches focus on the value of each material test and inspection type, helping agencies direct resources to where they provide the most value and reduce the risk to end quality and performance. This, in turn, reduces impacts on cost, schedule, and safety. Therefore, due to limited resources, this research project investigates the current construction material testing and inspection program to determine frequencies and, if appropriate, modify it using risk-based approaches. To accomplish this, the research team conducted an intensive literature review, focus group interviews with SDDOT personnel and third-party contractors and consultants, and case studies with five state DOTs. A risk assessment was conducted using a list of material testing and construction inspection activities. Each activity was rated by 19 SDDOT field personnel, and an average expected value was calculated to identify the top-risky material testing and construction inspection activities. The risk assessment condensed down the list of material testing activities to 72 and construction inspection activities to 35.Then, a quantitative analysis of material testing and construction inspection data for189 projects from the material sampling and testing (MS&T) was conducted. This analysis confirmed the risk assessment and yielded failure rates for material testing activities. Furthermore, the rankings were validated using construction inspection diaries (287 field events across 51 projects, 2020-2026), with nearly 90% of the top-ranked inspection activities confirmed by field evidence. A staffing analysis of 83 projects found that inspection effort tracks project size rather than activity risk and is concentrated among a few lead inspectors, which reinforces the case for a risk-based program that directs limited resources to where they add the most value. The results of the data collection, review, and subsequent analyses result in a series of recommendations and priorities to adjust material testing and construction inspection frequencies at SDDOT using risk-based approaches. AN - dot:93722 DA - 2026-08-14 ET - Final Report: January 2025 - June 2026 KW - Materials tests KW - Construction KW - Inspection KW - Risk analysis KW - Data analysis KW - Quantitative analysis KW - Literature reviews KW - Focus groups KW - Construction Inspection KW - Risk-Based KW - Frequency of Testing LA - English PB - South Dakota. Department of Transportation. Office of Research PY - 2026 SN - SD2024-02 TI - Efficient Construction Material Testing and Inspection Based on Risk Levels M3 - Tech Report N1 - United States N1 - 311674 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93722 ER -
ALS Control Box Effects on MLS Azimuth Guidance Signals

Zyzys, Edmund

1988-06-01 | PDF

A full MLS consisting of a 1-deg. beamwidth +/- 60 deg. front azimuth, a 1-1/2 deg. beamwidth elevation, and a 2-deg. beamwidth +/- 40 deg. back azimuth antenna, was installed for runway 31 service at the FAA Technical Center in early March 1988. The system was procured from Allied Bendix Aerospace and designed to meet the requirements of FAR Part- ...

10/05/2026

Title : ALS Control Box Effects on MLS Azimuth Guidance Signals Creator(s) : Zyzys, Edmund Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. Technical Center Published Date : 1988-06-01 Report Number : CT83-140-88-13 URL : https://rosap.ntl.bts.gov/view/dot/93721
Zyzys, E. (1988). ALS Control Box Effects on MLS Azimuth Guidance Signals (Report No. CT83-140-88-13). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93721

Zyzys, Edmund. ALS Control Box Effects on MLS Azimuth Guidance Signals. Report no. CT83-140-88-13. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1988. https://rosap.ntl.bts.gov/view/dot/93721.

Zyzys, Edmund ALS Control Box Effects on MLS Azimuth Guidance Signals. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1988, Report no. CT83-140-88-13, ROSA P. https://rosap.ntl.bts.gov/view/dot/93721.
Export RIS Citation Information. TY - Tech Report AU - Zyzys, Edmund A2 - United States. Department of Transportation. Federal Aviation Administration. Technical Center AB - A full MLS consisting of a 1-deg. beamwidth +/- 60 deg. front azimuth, a 1-1/2 deg. beamwidth elevation, and a 2-deg. beamwidth +/- 40 deg. back azimuth antenna, was installed for runway 31 service at the FAA Technical Center in early March 1988. The system was procured from Allied Bendix Aerospace and designed to meet the requirements of FAR Part-171, International Civil Aviation Organization (ICAO) Standards and Recommended Practices (SARP's), and the guidance accuracies in FAA STD-022b (in effect at contract award). The system replaced the old Phase Ill MLS test bed and is used to support projects requiring MLS guidance. AN - dot:93721 DA - 1988-06-01 KW - Microwave landing systems KW - Azimuth KW - Guidance systems KW - Approach control KW - Air traffic control LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1988 SN - CT83-140-88-13 TI - ALS Control Box Effects on MLS Azimuth Guidance Signals M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93721 ER -
MLS Signal Strength Measurements and MLS Mathematical Modeling of Runway 17R Hump at Denver Colorado, Stapleton Airport

Jones, Jesse D.

1988-01-01 | PDF

The tests described in this report resulted from discussions held at Hazeltine Corporation in Commack, New York on August 28, 1987. 'It was decided at this meeting that, due to differences in the output between FAA and Hazeltine math models, a joint FAA/Hazeltine project was to be undertaken to measure the actual threshold signal strength of an MLS ...

10/05/2026

Title : MLS Signal Strength Measurements and MLS Mathematical Modeling of Runway 17R Hump at Denver Colorado, Stapleton Airport Creator(s) : Jones, Jesse D. Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. Technical Center Published Date : 1988-01-01 Report Number : CT-140-88-9 URL : https://rosap.ntl.bts.gov/view/dot/93720
Jones, J. D. (1988). MLS Signal Strength Measurements and MLS Mathematical Modeling of Runway 17R Hump at Denver Colorado, Stapleton Airport (Report No. CT-140-88-9). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93720

Jones, Jesse D.. MLS Signal Strength Measurements and MLS Mathematical Modeling of Runway 17R Hump at Denver Colorado, Stapleton Airport. Report no. CT-140-88-9. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1988. https://rosap.ntl.bts.gov/view/dot/93720.

Jones, Jesse D. MLS Signal Strength Measurements and MLS Mathematical Modeling of Runway 17R Hump at Denver Colorado, Stapleton Airport. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1988, Report no. CT-140-88-9, ROSA P. https://rosap.ntl.bts.gov/view/dot/93720.
Export RIS Citation Information. TY - Tech Report AU - Jones, Jesse D. A2 - United States. Department of Transportation. Federal Aviation Administration. Technical Center AB - The tests described in this report resulted from discussions held at Hazeltine Corporation in Commack, New York on August 28, 1987. 'It was decided at this meeting that, due to differences in the output between FAA and Hazeltine math models, a joint FAA/Hazeltine project was to be undertaken to measure the actual threshold signal strength of an MLS signal transmitted over a humped runway. These measurements were then to be compared to output from both the Hazeltine Wedge and the FAA Wait/Conda math models in an attempt to reconcile the differences. It was decided to perform the measurements at runway 17R at Denver Stapleton International Airport which has a severe-hump of approximately 60 feet. AN - dot:93720 DA - 1988-01-01 KW - Microwave landing systems KW - Mathematical models KW - Flight tests LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1988 SN - CT-140-88-9 TI - MLS Signal Strength Measurements and MLS Mathematical Modeling of Runway 17R Hump at Denver Colorado, Stapleton Airport M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93720 ER -
Signal-to-Noise Ratio Conditions at Amchitka, Alaska

Erikson, Robert

1988-01-01 | PDF

The signal-to-noise-ratio (SNR) out-of-tolerance condition at Amchitka was analyzed. The issue was raised in a letter sent to National Resource Specialist, ANM-104N by Lyle Wink of AVN-240. The letter states that AVN-240 is concerned about certifying the approach into Amchitka, because the SNR may be below the -6 decibel (dB) limit for Loran C stat ...

10/05/2026

Title : Signal-to-Noise Ratio Conditions at Amchitka, Alaska Creator(s) : Erikson, Robert Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. Technical Center Published Date : 1988-01-01 Report Number : CT-140-88-1 URL : https://rosap.ntl.bts.gov/view/dot/93719
Erikson, R. (1988). Signal-to-Noise Ratio Conditions at Amchitka, Alaska (Report No. CT-140-88-1). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93719

Erikson, Robert. Signal-to-Noise Ratio Conditions at Amchitka, Alaska. Report no. CT-140-88-1. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1988. https://rosap.ntl.bts.gov/view/dot/93719.

Erikson, Robert Signal-to-Noise Ratio Conditions at Amchitka, Alaska. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1988, Report no. CT-140-88-1, ROSA P. https://rosap.ntl.bts.gov/view/dot/93719.
Export RIS Citation Information. TY - Tech Report AU - Erikson, Robert A2 - United States. Department of Transportation. Federal Aviation Administration. Technical Center AB - The signal-to-noise-ratio (SNR) out-of-tolerance condition at Amchitka was analyzed. The issue was raised in a letter sent to National Resource Specialist, ANM-104N by Lyle Wink of AVN-240. The letter states that AVN-240 is concerned about certifying the approach into Amchitka, because the SNR may be below the -6 decibel (dB) limit for Loran C station Port Clarence during certain times of the day. AVN-240 has asked AWS-100 for a waiver on the SNR issue so that they can authorize the issuance of the special instrument approach procedure. In addition, they have requested a new certification tolerance for SNR which will be provided to Anchorage FIFO for future periodic inspections. AN - dot:93719 DA - 1988-01-01 KW - Signal to noise ratio KW - Instrument flying KW - Aircraft pilotage KW - Approach LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1988 SN - CT-140-88-1 TI - Signal-to-Noise Ratio Conditions at Amchitka, Alaska M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93719 ER -
Test Plan for the Evaluation of Enhancements to the Low Level Wind Shear Alert System (LLWAS) at Stapleton International Airport

O'Brien, Paul J

1987-07-01 | PDF

The purpose of this test plan is to describe the procedural approach and analytical methods to be employed in the conduct of the test and evaluation of potential enhancements to the Low Level Wind Shear Alert System (LLWAS) at Stapleton International Airport, Denver, Colorado.

10/05/2026

Title : Test Plan for the Evaluation of Enhancements to the Low Level Wind Shear Alert System (LLWAS) at Stapleton International Airport Creator(s) : O'Brien, Paul J Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. Technical Center Published Date : 1987-07-01 Report Number : CT-110-88-6 URL : https://rosap.ntl.bts.gov/view/dot/93718
O'Brien, P. J. (1987). Test Plan for the Evaluation of Enhancements to the Low Level Wind Shear Alert System (LLWAS) at Stapleton International Airport (Report No. CT-110-88-6). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93718

O'Brien, Paul J. Test Plan for the Evaluation of Enhancements to the Low Level Wind Shear Alert System (LLWAS) at Stapleton International Airport. Report no. CT-110-88-6. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1987. https://rosap.ntl.bts.gov/view/dot/93718.

O'Brien, Paul J Test Plan for the Evaluation of Enhancements to the Low Level Wind Shear Alert System (LLWAS) at Stapleton International Airport. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1987, Report no. CT-110-88-6, ROSA P. https://rosap.ntl.bts.gov/view/dot/93718.
Export RIS Citation Information. TY - Tech Report AU - O'Brien, Paul J A2 - United States. Department of Transportation. Federal Aviation Administration. Technical Center AB - The purpose of this test plan is to describe the procedural approach and analytical methods to be employed in the conduct of the test and evaluation of potential enhancements to the Low Level Wind Shear Alert System (LLWAS) at Stapleton International Airport, Denver, Colorado. AN - dot:93718 DA - 1987-07-01 KW - Wind shear KW - Tracking systems KW - Aeronautics KW - Information display systems KW - Warning systems KW - Wind LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1987 SN - CT-110-88-6 TI - Test Plan for the Evaluation of Enhancements to the Low Level Wind Shear Alert System (LLWAS) at Stapleton International Airport M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93718 ER -
Design Review of the Controller-Pilot Data Link Communications - Build I (CPDLC-1) Functionality and Computer-Human Interface for the Display System Replacement

Darby, Evan R ;

Shingledecker, C

1998-08-01 | PDF

This report documents the results of a controller design review of the proposed functionality and computer-human interface for Controller-Pilot Data Link Communications Build 1 (CPDLC-I) planned for implementation on the Display System Replacement (DSR).

10/05/2026

Title : Design Review of the Controller-Pilot Data Link Communications - Build I (CPDLC-1) Functionality and Computer-Human Interface for the Display System Replacement Creator(s) : Darby, Evan R;Shingledecker, C; Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration Published Date : 1998-08-01 Report Number : DOT/FAA/CT-98/16 URL : https://rosap.ntl.bts.gov/view/dot/93717
Darby, E. R., & Shingledecker, C. (1998). Design Review of the Controller-Pilot Data Link Communications - Build I (CPDLC-1) Functionality and Computer-Human Interface for the Display System Replacement (Report No. DOT/FAA/CT-98/16). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93717

Darby, Evan R and C Shingledecker. Design Review of the Controller-Pilot Data Link Communications - Build I (CPDLC-1) Functionality and Computer-Human Interface for the Display System Replacement. Report no. DOT/FAA/CT-98/16. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1998. https://rosap.ntl.bts.gov/view/dot/93717.

Darby, Evan R, and C Shingledecker Design Review of the Controller-Pilot Data Link Communications - Build I (CPDLC-1) Functionality and Computer-Human Interface for the Display System Replacement. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1998, Report no. DOT/FAA/CT-98/16, ROSA P. https://rosap.ntl.bts.gov/view/dot/93717.
Export RIS Citation Information. TY - Tech Report AU - Darby, Evan R AU - Shingledecker, C A2 - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center A3 - United States. Department of Transportation. Federal Aviation Administration AB - This report documents the results of a controller design review of the proposed functionality and computer-human interface for Controller-Pilot Data Link Communications Build 1 (CPDLC-I) planned for implementation on the Display System Replacement (DSR). AN - dot:93717 DA - 1998-08-01 ET - Final Report KW - Air traffic control KW - Air traffic controllers KW - Communication systems KW - Human factors engineering KW - Psychology LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1998 SN - DOT/FAA/CT-98/16 TI - Design Review of the Controller-Pilot Data Link Communications - Build I (CPDLC-1) Functionality and Computer-Human Interface for the Display System Replacement M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93717 ER -
A Field Study of Transponder Performance in General Aviation Aircraft

Talotta, Nicholas J. ;

Wapelhorst, Leo

1997-12-01 | PDF

This report documents the results of a field study conducted to sample the technical health of transponders carried by General Aviation (GA) aircraft currently operating in the National Airspace System (NAS).

10/05/2026

Title : A Field Study of Transponder Performance in General Aviation Aircraft Creator(s) : Talotta, Nicholas J.;Wapelhorst, Leo;Shingledecker, C; Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration Published Date : 1997-12-01 Report Number : DOT/FAA/CT-97/7 URL : https://rosap.ntl.bts.gov/view/dot/93716
Talotta, N. J., Wapelhorst, L., & Shingledecker, C. (1997). A Field Study of Transponder Performance in General Aviation Aircraft (Report No. DOT/FAA/CT-97/7). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93716

Talotta, Nicholas J., Leo Wapelhorst, and C Shingledecker. A Field Study of Transponder Performance in General Aviation Aircraft. Report no. DOT/FAA/CT-97/7. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1997. https://rosap.ntl.bts.gov/view/dot/93716.

Talotta, Nicholas J., et al. A Field Study of Transponder Performance in General Aviation Aircraft. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1997, Report no. DOT/FAA/CT-97/7, ROSA P. https://rosap.ntl.bts.gov/view/dot/93716.
Export RIS Citation Information. TY - Tech Report AU - Talotta, Nicholas J. AU - Wapelhorst, Leo AU - Shingledecker, C A2 - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center A3 - United States. Department of Transportation. Federal Aviation Administration AB - This report documents the results of a field study conducted to sample the technical health of transponders carried by General Aviation (GA) aircraft currently operating in the National Airspace System (NAS). AN - dot:93716 DA - 1997-12-01 ET - Final Report KW - Air traffic control KW - Evaluation KW - Transponders LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1997 SN - DOT/FAA/CT-97/7 TI - A Field Study of Transponder Performance in General Aviation Aircraft M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93716 ER -
Evaluation of Dual Simultaneous Instrument Landing System Approaches to Runways Spaced 3000 Feet Apart with One Localizer Offset Using a Precision Runway Monitor System

Ozmore, R. E. ;

Morrow, Sherri L

1996-09-01 | PDF

A real time simulation was conducted to evaluate simultaneous ILS approaches to two runways spaced 3000 ft apart with one localizer offset by 2.5 degrees. Air traffic controllers monitored traffic using a simulated Precision Runway Monitor (PRM) system which consisted of Final Monitor Aid (FMA) displays and a simulated radar update rate of 1.0 seco ...

10/05/2026

Title : Evaluation of Dual Simultaneous Instrument Landing System Approaches to Runways Spaced 3000 Feet Apart with One Localizer Offset Using a Precision Runway Monitor System Creator(s) : Ozmore, R. E.;Morrow, Sherri L; Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration Published Date : 1996-09-01 Report Number : DOT/FAA/CT-96/2 URL : https://rosap.ntl.bts.gov/view/dot/93715
Ozmore, R. E., & Morrow, S. L. (1996). Evaluation of Dual Simultaneous Instrument Landing System Approaches to Runways Spaced 3000 Feet Apart with One Localizer Offset Using a Precision Runway Monitor System (Report No. DOT/FAA/CT-96/2). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93715

Ozmore, R. E. and Sherri L Morrow. Evaluation of Dual Simultaneous Instrument Landing System Approaches to Runways Spaced 3000 Feet Apart with One Localizer Offset Using a Precision Runway Monitor System. Report no. DOT/FAA/CT-96/2. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1996. https://rosap.ntl.bts.gov/view/dot/93715.

Ozmore, R. E., and Sherri L Morrow Evaluation of Dual Simultaneous Instrument Landing System Approaches to Runways Spaced 3000 Feet Apart with One Localizer Offset Using a Precision Runway Monitor System. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1996, Report no. DOT/FAA/CT-96/2, ROSA P. https://rosap.ntl.bts.gov/view/dot/93715.
Export RIS Citation Information. TY - Tech Report AU - Ozmore, R. E. AU - Morrow, Sherri L A2 - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center A3 - United States. Department of Transportation. Federal Aviation Administration AB - A real time simulation was conducted to evaluate simultaneous ILS approaches to two runways spaced 3000 ft apart with one localizer offset by 2.5 degrees. Air traffic controllers monitored traffic using a simulated Precision Runway Monitor (PRM) system which consisted of Final Monitor Aid (FMA) displays and a simulated radar update rate of 1.0 second. Aircraft blunders were introduced to test the air traffic control system ability to maintain adequate separation between aircraft on final approaches during critical situations using the proposed runway configuration. Four criteria were developed by the Multiple Parallel Approach Program (MPAP) Technical Work Group to evaluate the study: (1) the number of Test Criterion Violations (TCVs) relative to the total number of at-risk, non-responding blunders, and relative to a predetermined target level of safety of no more than one fatal accident per 25,000,000 approaches; (2) the frequency of No Transgression Zone (NTZ) entries and nuisance breakouts (NBOs); (3) an evaluation of controller communications workload; and (4) an operational assessment from MPAP TWG members and participating controller and pilot technical observers. The results of the simulation passed all of the test criteria The MPAP TWG recommended the 3000-ft dual offset procedure for approval in the operational environment, given similar controller and pilot training, when the PRM system is used. AN - dot:93715 DA - 1996-09-01 ET - Final Report KW - Air traffic control KW - Airline pilots KW - Airport runways KW - Approach KW - Flight training KW - Instrument landing systems LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1996 SN - DOT/FAA/CT-96/2 TI - Evaluation of Dual Simultaneous Instrument Landing System Approaches to Runways Spaced 3000 Feet Apart with One Localizer Offset Using a Precision Runway Monitor System M3 - Tech Report N1 - United States N1 - F2006D1 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93715 ER -
Aviation Security Human Factors Test and Evaluation Master Plan for the Airport Demonstration

Fobes, J. L. ;

McAnulty, D. Michael

1995-06-01 | PDF

This planning document describes 36 RDT&E activities designed to assess the operational effectiveness of a suite of prototype systems for enhancing screener proficiency on conventional and computed axial tomography X-ray inspection systems. Prototype equipment under test include screener selection test batteries, interface improvements, a connectio ...

10/05/2026

Title : Aviation Security Human Factors Test and Evaluation Master Plan for the Airport Demonstration Creator(s) : Fobes, J. L.;McAnulty, D. Michael;Klock, Brenda A.; Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. Technical Center;United States. Federal Aviation Administration. Aviation Security Research and Development Division; Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Associate Administrator for Civil Aviation Security, ACS-1 Published Date : 1995-06-01 Report Number : DOT/FAA/CT-95/30 URL : https://rosap.ntl.bts.gov/view/dot/93714
Fobes, J. L., McAnulty, D. M., & Klock, B. A. (1995). Aviation Security Human Factors Test and Evaluation Master Plan for the Airport Demonstration (Report No. DOT/FAA/CT-95/30). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93714

Fobes, J. L., D. Michael McAnulty, and Brenda A. Klock. Aviation Security Human Factors Test and Evaluation Master Plan for the Airport Demonstration. Report no. DOT/FAA/CT-95/30. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1995. https://rosap.ntl.bts.gov/view/dot/93714.

Fobes, J. L., et al. Aviation Security Human Factors Test and Evaluation Master Plan for the Airport Demonstration. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1995, Report no. DOT/FAA/CT-95/30, ROSA P. https://rosap.ntl.bts.gov/view/dot/93714.
Export RIS Citation Information. TY - Tech Report AU - Fobes, J. L. AU - McAnulty, D. Michael AU - Klock, Brenda A. A2 - United States. Department of Transportation. Federal Aviation Administration. Technical Center A2 - United States. Federal Aviation Administration. Aviation Security Research and Development Division A3 - United States. Department of Transportation. Federal Aviation Administration. Associate Administrator for Civil Aviation Security, ACS-1 AB - This planning document describes 36 RDT&E activities designed to assess the operational effectiveness of a suite of prototype systems for enhancing screener proficiency on conventional and computed axial tomography X-ray inspection systems. Prototype equipment under test include screener selection test batteries, interface improvements, a connection device, trainers, and performance testing systems. Host platforms, including the InVision CTx 5000, the E(3&O Astrophysics TnT, and the Safe Passage International Limited's Vocation Station Safe Passage System 40, will be used to improve the inspection of carry-on and checked baggage at selected airports during operational demonstrations. AN - dot:93714 DA - 1995-06-01 ET - Test and Evaluation Master Plan KW - Human factors KW - Explosives detectors KW - Baggage screening KW - Training LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1995 SN - DOT/FAA/CT-95/30 TI - Aviation Security Human Factors Test and Evaluation Master Plan for the Airport Demonstration M3 - Tech Report N1 - United States N1 - DTF A03-93-C-00042 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93714 ER -
Operational Test and Evaluation (OT&E) Final Report: Radio Control Equipment (RCE)

Bilicki, H ;

Lehman, R

1996-01-01 | PDF

This report documents the results of the Operational Test and Evaluation (OT&E) of the Radio Control Equipment (RCE, previously known as the Down Scope Radio Control Equipment, DSRCE). The OT&E consisted of three separate efforts during the time period, December 1994 to September 1995. A segmented OT&E was conducted to accommodate equipment modific ...

10/05/2026

Title : Operational Test and Evaluation (OT&E) Final Report: Radio Control Equipment (RCE) Creator(s) : Bilicki, H;Lehman, R;Fesnak, R; Corporate Creator(s) : Atlantic Science and Technology Inc Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration Published Date : 1996-01-01 Report Number : DOT/FAA/CT-96/1 URL : https://rosap.ntl.bts.gov/view/dot/93713
Bilicki, H., Lehman, R., & Fesnak, R. (1996). Operational Test and Evaluation (OT&E) Final Report: Radio Control Equipment (RCE) (Report No. DOT/FAA/CT-96/1). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93713

Bilicki, H, R Lehman, and R Fesnak. Operational Test and Evaluation (OT&E) Final Report: Radio Control Equipment (RCE). Report no. DOT/FAA/CT-96/1. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1996. https://rosap.ntl.bts.gov/view/dot/93713.

Bilicki, H, et al. Operational Test and Evaluation (OT&E) Final Report: Radio Control Equipment (RCE). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1996, Report no. DOT/FAA/CT-96/1, ROSA P. https://rosap.ntl.bts.gov/view/dot/93713.
Export RIS Citation Information. TY - Tech Report AU - Bilicki, H AU - Lehman, R AU - Fesnak, R A2 - Atlantic Science and Technology Inc A3 - United States. Department of Transportation. Federal Aviation Administration AB - This report documents the results of the Operational Test and Evaluation (OT&E) of the Radio Control Equipment (RCE, previously known as the Down Scope Radio Control Equipment, DSRCE). The OT&E consisted of three separate efforts during the time period, December 1994 to September 1995. A segmented OT&E was conducted to accommodate equipment modifications necessary to correct anomalies/problems discovered during testing. AN - dot:93713 DA - 1996-01-01 ET - Final Report KW - Airports KW - Airport runways KW - Instrument landing systems KW - Landing aids LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1996 SN - DOT/FAA/CT-96/1 TI - Operational Test and Evaluation (OT&E) Final Report: Radio Control Equipment (RCE) M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93713 ER -
Chemical Options to Halons for Aircraft Use

Tapscott, Robert

1995-02-01 | PDF

This report contains summary of available fire suppression agents, their properties and applicability in the various aircraft applications. Classes of agents, with presently available agents listed, are recommended for use in the development of test protocols. The test protocol developed for a class of agents can be used, with minor modifications, ...

10/05/2026

Title : Chemical Options to Halons for Aircraft Use Creator(s) : Tapscott, Robert Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. Technical Center Published Date : 1995-02-01 Report Number : DOT/FAA/CT-95/9 URL : https://rosap.ntl.bts.gov/view/dot/93712
Tapscott, R. (1995). Chemical Options to Halons for Aircraft Use (Report No. DOT/FAA/CT-95/9). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93712

Tapscott, Robert. Chemical Options to Halons for Aircraft Use. Report no. DOT/FAA/CT-95/9. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1995. https://rosap.ntl.bts.gov/view/dot/93712.

Tapscott, Robert Chemical Options to Halons for Aircraft Use. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1995, Report no. DOT/FAA/CT-95/9, ROSA P. https://rosap.ntl.bts.gov/view/dot/93712.
Export RIS Citation Information. TY - Tech Report AU - Tapscott, Robert A2 - United States. Department of Transportation. Federal Aviation Administration. Technical Center AB - This report contains summary of available fire suppression agents, their properties and applicability in the various aircraft applications. Classes of agents, with presently available agents listed, are recommended for use in the development of test protocols. The test protocol developed for a class of agents can be used, with minor modifications, to test all agents belonging to that class. AN - dot:93712 DA - 1995-02-01 ET - Final Report KW - Aircraft cabins KW - Airplanes KW - Fire extinguishing agents KW - Fires LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1995 SN - DOT/FAA/CT-95/9 TI - Chemical Options to Halons for Aircraft Use M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93712 ER -
Toxicity Assessment of Combustion Gases and Development of a Survival Model

Speitel, Louise

1995-07-01 | PDF

This report presents an extensive review of the literature on the toxic and thermal hazards relating to human survival in aircraft cabin fires. Studies by various authors of exposures to single and mixed gases on humans, primates, rats and mice are presented for different activity levels and a wide range of concentrations and temperatures. Regressi ...

10/05/2026

Title : Toxicity Assessment of Combustion Gases and Development of a Survival Model Creator(s) : Speitel, Louise Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. Technical Center Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research Published Date : 1995-07-01 Report Number : DOT/FAA/AR-95/5 URL : https://rosap.ntl.bts.gov/view/dot/93711
Speitel, L. (1995). Toxicity Assessment of Combustion Gases and Development of a Survival Model (Report No. DOT/FAA/AR-95/5). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93711

Speitel, Louise. Toxicity Assessment of Combustion Gases and Development of a Survival Model. Report no. DOT/FAA/AR-95/5. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1995. https://rosap.ntl.bts.gov/view/dot/93711.

Speitel, Louise Toxicity Assessment of Combustion Gases and Development of a Survival Model. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1995, Report no. DOT/FAA/AR-95/5, ROSA P. https://rosap.ntl.bts.gov/view/dot/93711.
Export RIS Citation Information. TY - Tech Report AU - Speitel, Louise A2 - United States. Department of Transportation. Federal Aviation Administration. Technical Center A3 - United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research AB - This report presents an extensive review of the literature on the toxic and thermal hazards relating to human survival in aircraft cabin fires. Studies by various authors of exposures to single and mixed gases on humans, primates, rats and mice are presented for different activity levels and a wide range of concentrations and temperatures. Regression equations giving the best fit were derived from these studies. The regression equation which was judged to best model the human escaping from an aircraft cabin fire was selected for each gas and utilized in the survival model. The effect of carbon dioxide increasing the uptake of other gases was included in the model. This survival model uses incapacitation data to obtain a fractional effective dose for incapacitation (FEDI) and lethality data to obtain a fractional effective dose for lethality (FEDL). The time when either FED reaches 1 determines the exposure time available to escape from an aircraft cabin fire and to survive postexposure. AN - dot:93711 DA - 1995-07-01 ET - Final Report KW - Air transportation crashes KW - Aircraft cabins KW - Combustion KW - Fires KW - Human factors LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1995 SN - DOT/FAA/AR-95/5 TI - Toxicity Assessment of Combustion Gases and Development of a Survival Model M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93711 ER -
INDOT Training Gap Analysis, Developing a Training Program for INDOT Workforce Development (New, Front-Line, Supervisors) and Smart Tool for Effective Planning for Workforce

Dunlop, Steven R. ;

Ukkusuri, Satish V.

2026-02-26 | PDF

The primary goal of the study was to understand reasons for workforce turnover, addressing INDOT's employee attraction and retention strategies. This objective was achieved by dividing the project into four tasks, each focusing on different criteria. Task A focused on understanding workforce development needs and gaps by determining training opport ...

10/05/2026

Title : INDOT Training Gap Analysis, Developing a Training Program for INDOT Workforce Development (New, Front-Line, Supervisors) and Smart Tool for Effective Planning for Workforce Creator(s) : Dunlop, Steven R.;Ukkusuri, Satish V.;Chen, Yunfeng;Thakkar, Dutt J.;Ka, Eunhan;Mittal, Shagun;Hu, Xinran;Wang, Ze;Khanna, Isha;Tammineni, Rithesh; Corporate Creator(s) : Purdue University. Joint Transportation Research Program Corporate Contributor(s) : Indiana Department of Transportation;United States. Department of Transportation. Federal Highway Administration; Published Date : 2026-02-26 Report Number : FHWA/IN/JTRP-2026/12 URL : https://rosap.ntl.bts.gov/view/dot/93710
Dunlop, S. R., Ukkusuri, S. V., Chen, Y., Thakkar, D. J., Ka, E., Mittal, S., Hu, X., Wang, Z., Khanna, I., & Tammineni, R. (2026). INDOT Training Gap Analysis, Developing a Training Program for INDOT Workforce Development (New, Front-Line, Supervisors) and Smart Tool for Effective Planning for Workforce (Report No. FHWA/IN/JTRP-2026/12). Purdue University. Joint Transportation Research Program. https://rosap.ntl.bts.gov/view/dot/93710

Dunlop, Steven R., Satish V. Ukkusuri, Yunfeng Chen, Dutt J. Thakkar, Eunhan Ka, Shagun Mittal, Xinran Hu, Ze Wang, Isha Khanna, and Rithesh Tammineni. INDOT Training Gap Analysis, Developing a Training Program for INDOT Workforce Development (New, Front-Line, Supervisors) and Smart Tool for Effective Planning for Workforce. Report no. FHWA/IN/JTRP-2026/12. Purdue University. Joint Transportation Research Program, 2026. https://rosap.ntl.bts.gov/view/dot/93710.

Dunlop, Steven R., et al. INDOT Training Gap Analysis, Developing a Training Program for INDOT Workforce Development (New, Front-Line, Supervisors) and Smart Tool for Effective Planning for Workforce. Purdue University. Joint Transportation Research Program, 2026, Report no. FHWA/IN/JTRP-2026/12, ROSA P. https://rosap.ntl.bts.gov/view/dot/93710.
Export RIS Citation Information. TY - Tech Report AU - Dunlop, Steven R. AU - Ukkusuri, Satish V. AU - Chen, Yunfeng AU - Thakkar, Dutt J. AU - Ka, Eunhan AU - Mittal, Shagun AU - Hu, Xinran AU - Wang, Ze AU - Khanna, Isha AU - Tammineni, Rithesh A2 - Purdue University. Joint Transportation Research Program A3 - Indiana Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - The primary goal of the study was to understand reasons for workforce turnover, addressing INDOT's employee attraction and retention strategies. This objective was achieved by dividing the project into four tasks, each focusing on different criteria. Task A focused on understanding workforce development needs and gaps by determining training opportunities available at INDOT and understanding the different training methods and frequency of training required. Additionally, Task A also benchmarked workforce development programs with industry and other neighboring states. Task B comprised performing a comprehensive numerical and text data analysis of the workforce using exit interview data to identify the reasons contributing to workforce turnover at INDOT. Task C and D focused on developing a survey instrument to identify workforce development needs for current staff and develop a technical program for the employees based on feedback. The study concluded that INDOT needs to address different demographics with different needs to tackle the broader challenges surrounding workforce development. The employee survey also highlighted the employee sentiment and preferences which INDOT needs to take into consideration. These findings resulted in the recommendation of specific actions that address the main factors affecting workforce turnover and steps that INDOT can take to attract and retain its employees. AN - dot:93710 DA - 2026-02-26 ET - Final Report KW - Training KW - Surveying KW - Workforce development KW - Data analysis KW - Benchmarks KW - Interviewing KW - attraction KW - retention LA - English PB - Purdue University. Joint Transportation Research Program PY - 2026 SN - FHWA/IN/JTRP-2026/12 TI - INDOT Training Gap Analysis, Developing a Training Program for INDOT Workforce Development (New, Front-Line, Supervisors) and Smart Tool for Effective Planning for Workforce M3 - Tech Report N1 - United States N1 - SPR-4806 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93710 ER -
FAA Technical Center System Security Technology Program: Safety Analysis (SA) Project Plan

Polillo, Ronald R

1994-12-01 | PDF

The Safety Analysis (SA) Plan details the type and level of effort necessary to discover the inherent hazards and evaluate the level of risk of ACA research activities. Literature reviews, interviews and inspections will be used to develop the data. Deliverables will include audit reports, Standard Operating Procedures (SOPs), checklists, Job Safet ...

10/05/2026

Title : FAA Technical Center System Security Technology Program: Safety Analysis (SA) Project Plan Creator(s) : Polillo, Ronald R Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. Technical Center;United States. Federal Aviation Administration. Aviation Security Research and Development Division; Corporate Contributor(s) : United States. Department of Transportation. Federal Aviation Administration. Associate Administrator for Civil Aviation Security, ACS-1 Published Date : 1994-12-01 Report Number : DOT/FANCT-94/l2l URL : https://rosap.ntl.bts.gov/view/dot/93709
Polillo, R. R. (1994). FAA Technical Center System Security Technology Program: Safety Analysis (SA) Project Plan (Report No. DOT/FANCT-94/l2l). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93709

Polillo, Ronald R. FAA Technical Center System Security Technology Program: Safety Analysis (SA) Project Plan. Report no. DOT/FANCT-94/l2l. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1994. https://rosap.ntl.bts.gov/view/dot/93709.

Polillo, Ronald R FAA Technical Center System Security Technology Program: Safety Analysis (SA) Project Plan. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1994, Report no. DOT/FANCT-94/l2l, ROSA P. https://rosap.ntl.bts.gov/view/dot/93709.
Export RIS Citation Information. TY - Tech Report AU - Polillo, Ronald R A2 - United States. Department of Transportation. Federal Aviation Administration. Technical Center A2 - United States. Federal Aviation Administration. Aviation Security Research and Development Division A3 - United States. Department of Transportation. Federal Aviation Administration. Associate Administrator for Civil Aviation Security, ACS-1 AB - The Safety Analysis (SA) Plan details the type and level of effort necessary to discover the inherent hazards and evaluate the level of risk of ACA research activities. Literature reviews, interviews and inspections will be used to develop the data. Deliverables will include audit reports, Standard Operating Procedures (SOPs), checklists, Job Safety Analysis (JSA) worksheets and a Project Report. A recommended classification scheme will be developed to assist in prioritizing suggested corrective actions. AN - dot:93709 DA - 1994-12-01 ET - Final Report KW - Aeronautics KW - Airports KW - Occupational safety KW - Risk assessment LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1994 SN - DOT/FANCT-94/l2l TI - FAA Technical Center System Security Technology Program: Safety Analysis (SA) Project Plan M3 - Tech Report N1 - United States N1 - DTFA03-93-C-00042 DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93709 ER -
Evaluation of Retro-Reflective Beads in Airport Pavement Markings

Bagot, Keith

1994-12-01 | PDF

This report identifies the results of a 1-year comparative evaluation on the use of retro-reflective glass beads in airport surface pavement markings. Class beads meeting Federal Specification TT-B-1325B, Type I and III were tested at three airports for retro-reflectivity, effects of runway friction, conspicuity, and durability. The three test airp ...

10/05/2026

Title : Evaluation of Retro-Reflective Beads in Airport Pavement Markings Creator(s) : Bagot, Keith Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. Technical Center Published Date : 1994-12-01 Report Number : DOT-FAA-CT-94-120 URL : https://rosap.ntl.bts.gov/view/dot/93708
Bagot, K. (1994). Evaluation of Retro-Reflective Beads in Airport Pavement Markings (Report No. DOT-FAA-CT-94-120). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93708

Bagot, Keith. Evaluation of Retro-Reflective Beads in Airport Pavement Markings. Report no. DOT-FAA-CT-94-120. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1994. https://rosap.ntl.bts.gov/view/dot/93708.

Bagot, Keith Evaluation of Retro-Reflective Beads in Airport Pavement Markings. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1994, Report no. DOT-FAA-CT-94-120, ROSA P. https://rosap.ntl.bts.gov/view/dot/93708.
Export RIS Citation Information. TY - Tech Report AU - Bagot, Keith A2 - United States. Department of Transportation. Federal Aviation Administration. Technical Center AB - This report identifies the results of a 1-year comparative evaluation on the use of retro-reflective glass beads in airport surface pavement markings. Class beads meeting Federal Specification TT-B-1325B, Type I and III were tested at three airports for retro-reflectivity, effects of runway friction, conspicuity, and durability. The three test airports were Atlantic City, Greater Pittsburgh, and Phoenix Sky Harbor International airports. Data from this study show the use of beaded materials in airport markings increased the conspicuity and quality of the airport markings. Also discovered in this evaluation was the friction enhancement gained from the incorporation of beads and silica additives into the paint materials. As a result of the findings of this study, certain modifications are recommended for the two existing specifications regarding airport pavement markings. AN - dot:93708 DA - 1994-12-01 ET - Final Report KW - Airport runways KW - Durability KW - Friction KW - Glass beads KW - Retroreflectors KW - Road markings KW - Visibility LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1994 SN - DOT-FAA-CT-94-120 TI - Evaluation of Retro-Reflective Beads in Airport Pavement Markings M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93708 ER -
Evaluation of Alternative Pavement Marking Materials

Bagot, Keith

1995-01-01 | PDF

This study was undertaken to evaluate potential alternative marking materials for use on airport pavement marking systems. The materials were evaluated for conspicuity, durability, rubber buildup, color retention, friction, environmental acceptability, and cost benefits. Five materials were evaluated (two waterborne, two epoxies, and one methacryli ...

10/05/2026

Title : Evaluation of Alternative Pavement Marking Materials Creator(s) : Bagot, Keith Corporate Creator(s) : United States. Department of Transportation. Federal Aviation Administration. Technical Center Published Date : 1995-01-01 Report Number : DOT/FAA/T-94/119 URL : https://rosap.ntl.bts.gov/view/dot/93707
Bagot, K. (1995). Evaluation of Alternative Pavement Marking Materials (Report No. DOT/FAA/T-94/119). United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. https://rosap.ntl.bts.gov/view/dot/93707

Bagot, Keith. Evaluation of Alternative Pavement Marking Materials. Report no. DOT/FAA/T-94/119. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1995. https://rosap.ntl.bts.gov/view/dot/93707.

Bagot, Keith Evaluation of Alternative Pavement Marking Materials. United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center, 1995, Report no. DOT/FAA/T-94/119, ROSA P. https://rosap.ntl.bts.gov/view/dot/93707.
Export RIS Citation Information. TY - Tech Report AU - Bagot, Keith A2 - United States. Department of Transportation. Federal Aviation Administration. Technical Center AB - This study was undertaken to evaluate potential alternative marking materials for use on airport pavement marking systems. The materials were evaluated for conspicuity, durability, rubber buildup, color retention, friction, environmental acceptability, and cost benefits. Five materials were evaluated (two waterborne, two epoxies, and one methacrylic resin) at three test airports around the country for a period of one year. The three test airports, chosen for their different climatic conditions, were Atlantic City, Greater Pittsburgh, and Phoenix Sky Harbor International airports. Epoxies and resins were more durable than water-borne paints in areas subject to heavy snowfall and snowplow activity, particularly when applied to Portland cement concrete surfaces. The epoxies tested did show some signs of yellowing after extensive ultraviolet exposure. It was also determined that the addition of silica and/or glass beads improved the conspicuity of the markings, improved friction, and minimized rubber adherence. The cost-benefit analysis showed that more durable materials and the addition of silica and/or beads does increase the initial cost of marking the airport surfaces but could reduce the number of painting cycles on many portions of the airport from several times per year to once every several years. AN - dot:93707 DA - 1995-01-01 ET - Final Report KW - Airport runways KW - Alternatives analysis KW - Benefit cost analysis KW - Durability KW - Epoxy coatings KW - Marking materials KW - Road markings KW - Visibility LA - English PB - United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center PY - 1995 SN - DOT/FAA/T-94/119 TI - Evaluation of Alternative Pavement Marking Materials M3 - Tech Report N1 - United States DB - ROSA P UR - https://rosap.ntl.bts.gov/view/dot/93707 ER -

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