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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.

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Showing 32901 - 32920 of 35440 results
  • Characteristics of medically disqualified airman applicants in calendar years 1977 and 1978
    Characteristics of medically disqualified airman applicants in calendar years 1977 and 1978.
    Dark, Shirley J.
    1980-10-01 | PDF
    This study provides comprehensive data reflecting pertinent denial rates with respect to the medical and general attributes of those airmen denied medical certification in calendar years 1977 and 1978. Also provided are such descriptive epidemiologic data as age, sex, occupation, class of medical certificate applied for, total flying time, and caus ...
  • An exploratory investigation of various assessment instruments as correlates of complex visual monitoring performance
    An exploratory investigation of various assessment instruments as correlates of complex visual monitoring performance.
    Thackray, Richard I. ;
    Touchstone, R. Mark
    1980-10-01 | PDF
    The present study examined a variety of possible predictors of complex monitoring performance. The criterion task was designed to resemble that of a highly automated air traffic control radar system containing computer-generated alphanumeric displays. Forty-five men and women were administered a battery of tests and task prior to performing the cri ...
  • Evaluation of the protective efficiency of a new oxygen mask for aircraft passenger use to 40000 feet
    Evaluation of the protective efficiency of a new oxygen mask for aircraft passenger use to 40,000 feet.
    deSteiguer, D. ;
    Saldivar, J.T.
    1980-10-01 | PDF
    This report describes the methods used in the evaluation of a new continuous-flow, phase-dilution passenger oxygen mask for compliance to FAA technical Standard Order (TSO)-C64 requirements. Data presented include end expiratory partial pressures for oxygen, carbon dioxide, and nitrogen at selected altitudes and oxygen flow rates. Data indicate tha ...
  • Issue Concerning Transfers of Wealth as a Result of State Rail Freight Assistance Programs
    Issue Concerning Transfers of Wealth as a Result of State Rail Freight Assistance Programs
    Griffin, Gene C. ;
    Berreth, Gary
    1980-09-01 | PDF
    Section 803 of the Railroad Revitalization and Regulatory Reform Act of 1975 as amended in 1979 provides for public financial assistance to states on an 80/20 matching basis for state rail freight assistance programs. The program is a direct result of the financial condition of the railroad industry and the corresponding current disinvestment that ...
  • Evaluation of Computer Programs NULOAD and REHAB REHAB Computer Program Volume 2
    Evaluation of Computer Programs NULOAD and REHAB: REHAB Computer Program. Volume 2
    Garcia-Diaz, Alberto ;
    Lytton, Robert L.
    1980-09-01 | PDF
    The purpose of this study is to perform a critical evaluation of the REHAB and NULOAD computer programs. REHAB is currently being used by the Texas State Department of Highways and Public Transportation (DHT) to forecast highway rehabilitation and maintenance funds to keep the road system at an acceptable level of serviceability. To this end, a com ...
  • Evaluation of Computer Programs NULOAD and REHAB Volume 3 NULOAD Computer Program
    Evaluation of Computer Programs NULOAD and REHAB Volume 3: NULOAD Computer Program
    Garcia-Diaz, Alberto ;
    Lytton, Robert L.
    1980-09-01 | PDF
    The purpose of this study is to perform a critical evaluation of the REHAB and NULOAD computer programs. REHAB is currently being used by the Texas State Department of Highways and Public Transportation (DHT) to forecast highway rehabilitation and maintenance funds to keep the road system at an acceptable level of serviceability. To this end, a com ...
  • Evaluation of Computer Programs NULOAD and REHAB Volume 1 Evaluation Procedure
    Evaluation of Computer Programs NULOAD and REHAB Volume 1: Evaluation Procedure
    Garcia-Diaz, Alberto ;
    Lytton, Robert L.
    1980-09-01 | PDF
    The purpose of this study is to perform a critical evaluation of the REHAB and NULOAD computer programs. REHAB is currently being used by the Texas State Department of Highways and Public Transportation (DHT) to forecast highway rehabilitation and maintenance funds to keep the road system at an acceptable level of serviceability. To this end, a com ...
  • Stress anxiety and the air traffic control specialist some conclusions from a decade of research
    Stress, anxiety, and the air traffic control specialist : some conclusions from a decade of research.
    Smith, Roger C.
    1980-09-01 | PDF
    This paper summarizes a decade of research evaluating possible stress effects of work on Air Traffic Control Specialists (ATCSs).Studies were conducted at a variety of large and small air traffic facilities. A visit of several days to each facility was part of an interdisciplinary research effort involving physiological and biochemical, as well as ...
  • The Federal Aviation Administrations radar training facility and employee selection and training
    The Federal Aviation Administration's radar training facility and employee selection and training.
    Boone, James O. ;
    Buskirk, Linda Van
    1980-09-01 | PDF
    The Federal Aviation Administration (FAA) has recently constructed a Radar Training Facility (RTF) in Oklahoma City, Oklahoma, to aid in screening appropriate personnel for work in radar air traffic control (ATC). The approach is based on the idea that limited exposure to simulated radar ATC in a controlled and measured environment will lead to the ...
  • Effects of longterm exposure to low levels of ozone a review
    Effects of long-term exposure to low levels of ozone : a review.
    Melton, C.E.
    1980-09-01 | PDF
    Available literature regarding long-term effects of ozone on animals and humans is reviewed. Emphasis is placed on reports that have appeared since 1976, but some earlier reports are cited for completeness and perspective. This review shows that ozone concentration is more important than is duration of exposure in determining the effectiveness of a ...
  • Evaluation of Selected Human Services Transportation Providers in Texas
    Evaluation of Selected Human Services Transportation Providers in Texas
    Bullard, Diane L. ;
    Urbanik II, Thomas
    1980-08-01 | PDF
    Although considerable research has been done in the area of elderly and handicapped transportation, very little factual data exist concerning how human services transportation providers operate or what their services actually cost. In light of this fact, three providers of human services transportation were selected for in-depth evaluation. Both co ...
  • Engineering Economy and Energy Considerations Pavement Failure Analysis with Guidelines for Rehabilitation of Flexible Pavements
    Engineering Economy and Energy Considerations: Pavement Failure Analysis with Guidelines for Rehabilitation of Flexible Pavements
    Finn, F. N. ;
    Epps, J. A.
    1980-08-01 | PDF
    The objective of this report is to provide information and guidelines for pavement failure analysis and for selection of rehabilitation procedures. The report has been prepared in three parts as follows: a. Identification of Types and Causes of Premature Failure in Flexible Pavements; b. Guidelines for Detailed Investigation of the Cause of Prematu ...
  • Engineering Economy and Energy Considerations Field Evaluation of a Seal Coat Design Method
    Engineering Economy and Energy Considerations: Field Evaluation of a Seal Coat Design Method
    Epps, J. A. ;
    Chaffin, C. W.
    1980-08-01 | PDF
    The Texas State Department of Highways and Public Transportation and the Texas Transportation Institute through their cooperative research program have developed a seal coat design procedure. This design procedure is based on a modification of the original Kearby Method (1) and includes separate design curves for seal coats made from lightweight ag ...
  • Compaction of Hot Mix Asphalt Concrete
    Compaction of Hot Mix Asphalt Concrete
    Finn, F. N. ;
    Epps, J. A.
    1980-08-01 | PDF
    The need for adequate compaction of asphalt concrete has been recognized since the very beginning of asphalt pavement construction. The first asphalt pavements in the United States were built around 1870 and the first successful tandem steam roller was built in 1875. Since 1875 engineers have learned a great deal about the need for and benefits of ...
  • Engineering Economy and Energy Considerations Costs Association with Pavement Construction Rehabilitation and Maintenance
    Engineering Economy and Energy Considerations: Costs Association with Pavement Construction, Rehabilitation and Maintenance
    Epps, J. A. ;
    Finn, F. N.
    1980-08-01 | PDF
    This paper presents techniques suitable for selection of a rehabilitation strategy for a particular project. The techniques available make use of the principles of engineering economy and methods of economic evaluation. Thus, cost information is required together with information concerning the life of various rehabilitation alternatives. Cost info ...
  • Engineering Economy and Energy Considerations Energy Requirements Associated with Pavement Construction Rehabilitation and Maintenance
    Engineering Economy and Energy Considerations: Energy Requirements Associated with Pavement Construction, Rehabilitation and Maintenance
    Epps, J. A. ;
    Finn, F. N.
    1980-08-01 | PDF
    Estimates of the energy consumed for highway construction are of the order of 1.7 percent of the total annual U. S. energy demand while maintenance and rehabilitation operations are estimated to require an additional 1.5 to 2.0 percent. Information included in this report indicates that a reasonable energy estimate for routine pavement maintenance ...
  • Engineering Economy and Energy Considerations Design of Recycled Asphalt Concrete Mixtures
    Engineering Economy and Energy Considerations: Design of Recycled Asphalt Concrete Mixtures
    Epps, J. A. ;
    Holmgreen, R. J.
    1980-08-01 | PDF
    The recycling of old bituminous bound pavements in central plant operation has gained popularity since 1976. Procedures for the design of these mixtures have not been standardized; however, several producers and user-producer groups have published guides for design purposes (1-6). A mixture design method is outlined below based on these references ...
  • Effects of asphalt cement rejuvenating agents final report
    Effects of asphalt cement rejuvenating agents : final report.
    Carey, Donald E. ;
    Paul, Harold R.
    1980-08-01 | PDF
    Louisiana's initial work in the recycling of asphaltic concrete pavements has demonstrated the need to obtain a base of knowledge in the area of rejuvenating age-hardened reclaimed asphalt cement. In this report, eight rejuvenating agents are examined with regard to the rejuvenator's effect, at various levels of addition, upon age-hardened asphalts ...
  • The effects of tobacco on aviation safety
    The effects of tobacco on aviation safety.
    Dille, J.R. ;
    Linder, M.K.
    1980-08-01 | PDF
    In 1976, the FAA was petitioned to issue regulations that would prohibit all smoking in the cockpit during commercial flight operations and prohibit preflight smoking by flight crew members within 8 hours before commercial flight operations. A review of the literature was conducted to determine the effects on pilot performance of carbon monoxide (C ...
  • Annual Report of the Maritime Administration 1979 MARAD 1979
    Annual Report of the Maritime Administration 1979 [MARAD 1979]
    United States. Maritime Administration
    1980-07-01 | Annual Reports of the Maritime Administration | PDF
    This Annual Report of the Maritime Administration describes Government programs and industry developments which characterize the status of, as well as the general concern for, the U.S. merchant marine as a vital part of our peacetime transportation system, foreign and domestic trade, total economy, and national security. The narrative and the stati ...
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