The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations.
Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.
The investigation involved an examination of current technology on concrete consolidation, current continuously reinforced concrete pavement (CRCP) consolidation practices in Texas and selected current concrete pavement problems through field examination and laboratory investigation. Principal conclusions reached were: (1) while the vast majority o
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Ledbetter, W. B., & Treybig, H. J. (1969). Consolidation Practices in Concrete Pavement Construction (Report No. 128-1 (Final)). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/84561
Ledbetter, W. B. and Harvey J. Treybig. Consolidation Practices in Concrete Pavement Construction. Report no. 128-1 (Final). Texas Transportation Institute. Texas A&M University, 1969. https://rosap.ntl.bts.gov/view/dot/84561.
Ledbetter, W. B., and Harvey J. Treybig Consolidation Practices in Concrete Pavement Construction. Texas Transportation Institute. Texas A&M University, 1969, Report no. 128-1 (Final), ROSA P. https://rosap.ntl.bts.gov/view/dot/84561.
The purpose was to find a more economical and time saving method for coating a steel bridge. This was accomplished by evaluating the cost and accelerated life of an organic zinc primer together with its appropriate topcoat versus the cost and life of the presently used Basic Lead Silico Chromate coating. Five generic types with their respective top
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Azar, David G.. Evaluation of organic zinc coatings : final report. Report no. 43. Louisiana. Dept. of Highways, 1969. https://rosap.ntl.bts.gov/view/dot/21901.
Azar, David G. Evaluation of organic zinc coatings : final report. Louisiana. Dept. of Highways, 1969, Report no. 43, ROSA P. https://rosap.ntl.bts.gov/view/dot/21901.
Visual illusions have been a persistent problem in aviation research. The spiral aftereffect (SAE) is an example of one type of visual illusion--that which occurs following the cessation of real motion. Duration and intensity of the SAE was evaluated under five conditions. Results indicate that perceived (rather than physical) characteristics of th
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Williams, M. J., & Collins, W. E. (1969). The spiral aftereffect. II, Some influences of visual angle and retinal speed on the duration and intensity of illusory motion (Report No. AM 69-15). Civil Aerospace Medical Institute. https://rosap.ntl.bts.gov/view/dot/20911
Williams, Mary Jane and William E. Collins. The spiral aftereffect. II, Some influences of visual angle and retinal speed on the duration and intensity of illusory motion. Report no. AM 69-15. Civil Aerospace Medical Institute, 1969. https://rosap.ntl.bts.gov/view/dot/20911.
Williams, Mary Jane, and William E. Collins The spiral aftereffect. II, Some influences of visual angle and retinal speed on the duration and intensity of illusory motion. Civil Aerospace Medical Institute, 1969, Report no. AM 69-15, ROSA P. https://rosap.ntl.bts.gov/view/dot/20911.
Current AASHO design standards for passing sight distance are based upon mathematical formulas which employ several assumptions regarding driver-vehicle characteristics. Many of the values used in establishing these standards were determined from studies conducted approximately thirty years ago. The subject of driver judgment and decision processes
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Weaver, G. D., & Glennon, J. C. (1969). The Passing Maneuver as It Relates to Passing Sight Distance Standards (Report No. 134-1). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/84794
Weaver, Graeme D. and John C. Glennon. The Passing Maneuver as It Relates to Passing Sight Distance Standards. Report no. 134-1. Texas Transportation Institute. Texas A&M University, 1969. https://rosap.ntl.bts.gov/view/dot/84794.
Weaver, Graeme D., and John C. Glennon The Passing Maneuver as It Relates to Passing Sight Distance Standards. Texas Transportation Institute. Texas A&M University, 1969, Report no. 134-1, ROSA P. https://rosap.ntl.bts.gov/view/dot/84794.
This report describes the design and evaluation of a deformation measurement system developed to observe the vertical and horizontal displacements of points on the surface of large diameter cylindrical specimens of granular material subjected to rapid, repeated load applications. The system consists of a loading apparatus, triaxial cell, measuremen
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Moore, W. M., Swift, G., & Milberger, L. J. (1969). Deformation Measuring System for Repetitively Loaded, Large Diameter Specimens of Granular Material (Report No. 99-4). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/84521
Moore, William M., Gilbert Swift, and Lionel J. Milberger. Deformation Measuring System for Repetitively Loaded, Large Diameter Specimens of Granular Material. Report no. 99-4. Texas Transportation Institute. Texas A&M University, 1969. https://rosap.ntl.bts.gov/view/dot/84521.
Moore, William M., et al. Deformation Measuring System for Repetitively Loaded, Large Diameter Specimens of Granular Material. Texas Transportation Institute. Texas A&M University, 1969, Report no. 99-4, ROSA P. https://rosap.ntl.bts.gov/view/dot/84521.
A summary of the development of freeway ramp control systems is presented in this report, which is the last of a series of twenty six (26) reports on various aspects of freeway operation, traffic surveillance, and control. The theme of this report is that freeway ramp control systems have been adequately tested and evaluated and proven to be effect
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McCasland, W. R. (1969). Freeway Ramp Control System (Report No. 24-26). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/83648
McCasland, William R.. Freeway Ramp Control System. Report no. 24-26. Texas Transportation Institute. Texas A&M University, 1969. https://rosap.ntl.bts.gov/view/dot/83648.
McCasland, William R. Freeway Ramp Control System. Texas Transportation Institute. Texas A&M University, 1969, Report no. 24-26, ROSA P. https://rosap.ntl.bts.gov/view/dot/83648.
The Gulf Freeway Surveillance and Control System had its beginning in 1963 when the Texas Transportation Institute began a research endeavor to investigate means of improving the level of service on urban freeways. The research was sponsored by the Texas Highway Department and U.S. Bureau of Public Roads with the objective of developing criteria fo
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Goolsby, M. E., & McCasland, W. R. (1969). Freeway Operations on the Gulf Freeway Ramp Control System (Report No. 24-25). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/83649
Goolsby, Merrell E. and William R. McCasland. Freeway Operations on the Gulf Freeway Ramp Control System. Report no. 24-25. Texas Transportation Institute. Texas A&M University, 1969. https://rosap.ntl.bts.gov/view/dot/83649.
Goolsby, Merrell E., and William R. McCasland Freeway Operations on the Gulf Freeway Ramp Control System. Texas Transportation Institute. Texas A&M University, 1969, Report no. 24-25, ROSA P. https://rosap.ntl.bts.gov/view/dot/83649.
Capacity of a freeway is dependent upon physical factors of the roadway, traffic factors, and environmental factors. The effect on capacity of physical and traffic factors has been extensively investigated. However, little study has been devoted to the effect on capacity of environmental factors. This investigation determined the effect of rain, on
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Jones, E. R., & Goolsby, M. E. (1969). Effect of Rain on Freeway Capacity (Report No. 24-23). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/84035
Jones, E. Roy and Merrell E. Goolsby. Effect of Rain on Freeway Capacity. Report no. 24-23. Texas Transportation Institute. Texas A&M University, 1969. https://rosap.ntl.bts.gov/view/dot/84035.
Jones, E. Roy, and Merrell E. Goolsby Effect of Rain on Freeway Capacity. Texas Transportation Institute. Texas A&M University, 1969, Report no. 24-23, ROSA P. https://rosap.ntl.bts.gov/view/dot/84035.
This study involved the development of performance requirements to alleviate thermal distress in a high-quality surface course for flexible pavement. The four requirements determined were for (1) long term or thermal equilibrium, normal strain or stress, (2) short term or transient thermal stress, (3) shear strength and (4) peel strength of the pav
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Bynum Jr, D., & Traxler, R. N. (1969). Performance Requirements of High Quality Flexible Pavements (Report No. 127-1). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/84555
Bynum Jr, Douglas and R. N. Traxler. Performance Requirements of High Quality Flexible Pavements. Report no. 127-1. Texas Transportation Institute. Texas A&M University, 1969. https://rosap.ntl.bts.gov/view/dot/84555.
Bynum Jr, Douglas, and R. N. Traxler Performance Requirements of High Quality Flexible Pavements. Texas Transportation Institute. Texas A&M University, 1969, Report no. 127-1, ROSA P. https://rosap.ntl.bts.gov/view/dot/84555.
This final report summarizes the findings of five and one-half years of research in highway illumination on Research Study 2-8-64-75. This research was conducted by the Texas Transportation Institute in cooperation with the Texas Highway Department and the Bureau of Public Roads. The various phases of the research have been covered in detail in twe
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Walton, N. E., & Rowan, N. J. (1969). Final Report: Supplementary Studies in Highway Illumination (Report No. 75-13F). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/84486
Walton, Ned E. and Neilon J. Rowan. Final Report: Supplementary Studies in Highway Illumination. Report no. 75-13F. Texas Transportation Institute. Texas A&M University, 1969. https://rosap.ntl.bts.gov/view/dot/84486.
Walton, Ned E., and Neilon J. Rowan Final Report: Supplementary Studies in Highway Illumination. Texas Transportation Institute. Texas A&M University, 1969, Report no. 75-13F, ROSA P. https://rosap.ntl.bts.gov/view/dot/84486.
Under Secretary James M. Beggs will represent the Department of Transportation at the seventh meeting of the Joint United States-Japan Committee on Trade and Economic Affairs which will be held in Tokyo on July 29 through July 31.
United States. Department of Transportation (1969). For Release Monday, July 28, 1969. United States. Department of Transportation. https://doi.org/10.21949/1531150
United States. Department of Transportation. For Release Monday, July 28, 1969. United States. Department of Transportation, 1969. https://doi.org/10.21949/1531150.
United States. Department of Transportation For Release Monday, July 28, 1969. United States. Department of Transportation, 1969, ROSA P. https://doi.org/10.21949/1531150.
United States. Department of Transportation. Office of the Secretary
1969-07-02
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Secretary of Transportation John A. Volpe has recently transmitted a report entitled "Transportation Information" to the Committee on Appropriations, House of Representatives. The program described in the report provides for the use of existing transportation information programs to the greatest possible extent and the filling of information gaps.
United States. Department of Transportation. Office of the Secretary (1969). For Release Wednesday, July 2, 1969. United States. Department of Transportation. Office of the Secretary. https://doi.org/10.21949/1531147
United States. Department of Transportation. Office of the Secretary. For Release Wednesday, July 2, 1969. United States. Department of Transportation. Office of the Secretary, 1969. https://doi.org/10.21949/1531147.
United States. Department of Transportation. Office of the Secretary For Release Wednesday, July 2, 1969. United States. Department of Transportation. Office of the Secretary, 1969, ROSA P. https://doi.org/10.21949/1531147.
Eleven male subjects were given flight training according to a conventional but rigidly standardized private pilot syllabus. On half of the dual flights chloridazepoxide was given; identical-appearing placebo capsules were given on the remaining dual flights. No treatment was given on solo flights. Differences could not be distinguished between tra
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Melton, C., Hoffman, M., & Delafield, R. (1969). The use of a tranquilizer (chlordiazepoxide) in flight training (Report No. AM 69-12). Civil Aerospace Medical Institute. https://rosap.ntl.bts.gov/view/dot/20908
Melton, C.E., Marlene Hoffman, and R.H. Delafield. The use of a tranquilizer (chlordiazepoxide) in flight training. Report no. AM 69-12. Civil Aerospace Medical Institute, 1969. https://rosap.ntl.bts.gov/view/dot/20908.
Melton, C.E., et al. The use of a tranquilizer (chlordiazepoxide) in flight training. Civil Aerospace Medical Institute, 1969, Report no. AM 69-12, ROSA P. https://rosap.ntl.bts.gov/view/dot/20908.
The information contained herein was developed on Research Project 2-5-69-140 entitled "Evaluation of the Roadside Environment by Dynamic Analysis of the Interaction Between the Vehicle, Passenger, and Roadway" which is a cooperative research study sponsored jointly by the Texas Highway Department and the U. S. Department of Transportation, Bureau
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Young, R. D., Edwards, T. C., Bridwell, R. J., & Ross Jr, H. E. (1969). Documentation of Input for Single Vehicle Accident Computer Program (Report No. 140-1). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/84806
Young, Ronald D., Thomas C. Edwards, Richard J. Bridwell, and Hayes E. Ross Jr. Documentation of Input for Single Vehicle Accident Computer Program. Report no. 140-1. Texas Transportation Institute. Texas A&M University, 1969. https://rosap.ntl.bts.gov/view/dot/84806.
Young, Ronald D., et al. Documentation of Input for Single Vehicle Accident Computer Program. Texas Transportation Institute. Texas A&M University, 1969, Report no. 140-1, ROSA P. https://rosap.ntl.bts.gov/view/dot/84806.
The objectives of this research were to review the established specifications for erosion control used by the Texas Highway Department and to determine better plant materials and operational practices for establishing a plant cover on roadsides.
McCully, W. G., & Bowmer, W. J. (1969). Erosion Control on Roadsides in Texas (Report No. 67-8 (Final)). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/84431
McCully, Wayne G. and William J. Bowmer. Erosion Control on Roadsides in Texas. Report no. 67-8 (Final). Texas Transportation Institute. Texas A&M University, 1969. https://rosap.ntl.bts.gov/view/dot/84431.
McCully, Wayne G., and William J. Bowmer Erosion Control on Roadsides in Texas. Texas Transportation Institute. Texas A&M University, 1969, Report no. 67-8 (Final), ROSA P. https://rosap.ntl.bts.gov/view/dot/84431.
The importance of proper compaction of asphalt pavements has been recognized for many years. Investigators have shown that pavement stability, durability, tensile strength, fatigue resistance, stiffness, and flexibility are controlled to a certain degree by the density of asphalt concrete. To ensure adequate compaction several agencies specify "in-
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Epps, J. A., Gallaway, B. M., Harper, W. J., Scott Jr, W. W., & Seay, J. W. (1969). Compaction of Asphalt Concrete Pavements (Report No. 90-2F). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/84517
Epps, Jon A., Bob M. Gallaway, William J. Harper, William W. Scott Jr, and Jeff W. Seay. Compaction of Asphalt Concrete Pavements. Report no. 90-2F. Texas Transportation Institute. Texas A&M University, 1969. https://rosap.ntl.bts.gov/view/dot/84517.
Epps, Jon A., et al. Compaction of Asphalt Concrete Pavements. Texas Transportation Institute. Texas A&M University, 1969, Report no. 90-2F, ROSA P. https://rosap.ntl.bts.gov/view/dot/84517.
This Part 1 (Research Report 113-2) is a progress report on one phase of the general project "Splices and Anchorage of Reinforcing Bars". It covers an investigation of 11 bar splices under a condition which models the necessary splices at the base of the stem of a cantilever retaining wall. While an extension of the present work will continue into
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Ferguson, P. M., & Briceno, E. A. (1969). Tensile Lap Splices Part I: Retaining Wall Type, Varying Moment Zone (Report No. 113-2). University of Texas at Austin. Center for Highway Research. https://rosap.ntl.bts.gov/view/dot/85509
Ferguson, Phil M. and Eduardo A. Briceno. Tensile Lap Splices Part I: Retaining Wall Type, Varying Moment Zone. Report no. 113-2. University of Texas at Austin. Center for Highway Research, 1969. https://rosap.ntl.bts.gov/view/dot/85509.
Ferguson, Phil M., and Eduardo A. Briceno Tensile Lap Splices Part I: Retaining Wall Type, Varying Moment Zone. University of Texas at Austin. Center for Highway Research, 1969, Report no. 113-2, ROSA P. https://rosap.ntl.bts.gov/view/dot/85509.
Summary data with respect to occupational prevalence in the active airman population is presented according to major occupation groups utilized by the Bureau of the Census. Occupational characteristics of the active airman population are compared to the occupational characteristics of the general population of the United States. Type of flying enga
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There are four factors of production or classes of resources that are needed for production of any good or service. These are land or raw materials, labor, capital, and management ability. In order to enter or remain in the trucking industry, all four factors of production must be employed and accountable. However, to increase in size, capital avai
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Almond, J. R., & Nelson, D. C. (1969). A Credit Quality Study of the Agricultural Trucking Industry of North Dakota (Report No. UGPTI Publication No. 9). Upper Great Plains Transportation Institute. https://rosap.ntl.bts.gov/view/dot/60048
Almond, James R and David C Nelson. A Credit Quality Study of the Agricultural Trucking Industry of North Dakota. Report no. UGPTI Publication No. 9. Upper Great Plains Transportation Institute, 1969. https://rosap.ntl.bts.gov/view/dot/60048.
Almond, James R, and David C Nelson A Credit Quality Study of the Agricultural Trucking Industry of North Dakota. Upper Great Plains Transportation Institute, 1969, Report no. UGPTI Publication No. 9, ROSA P. https://rosap.ntl.bts.gov/view/dot/60048.
This study was primarily concerned with how operators in an intensive farming area adjusted to the location of Interstate Highway 35E through one or more of their operating units. Information was gathered by personal interview from the study area operators and nearby control area operators covering their 1963, 1965 and 1967 operations. These years
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Meuth, H. G., & Buffington, J. L. (1969). Right of Way Effects of Controlled Access Type Highway on a Farming Area in Ellis County, Texas (Report No. 58-5). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/84117
Meuth, Hugo G. and Jesse L. Buffington. Right of Way Effects of Controlled Access Type Highway on a Farming Area in Ellis County, Texas. Report no. 58-5. Texas Transportation Institute. Texas A&M University, 1969. https://rosap.ntl.bts.gov/view/dot/84117.
Meuth, Hugo G., and Jesse L. Buffington Right of Way Effects of Controlled Access Type Highway on a Farming Area in Ellis County, Texas. Texas Transportation Institute. Texas A&M University, 1969, Report no. 58-5, ROSA P. https://rosap.ntl.bts.gov/view/dot/84117.
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