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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 31281 - 31300 of 35448 results
  • Chemkrete Modified asphaltic concrete field trial construction and three year evaluation experimental project program No 3 asphalt additives
    Chemkrete Modified asphaltic concrete field trial construction and three year evaluation : experimental project program No. 3 asphalt additives.
    Paul, Harold R.
    1989-06-01 | PDF
    This report documents the construction of a Chemkrete modified asphaltic concrete field trial and presents three year performance data. Normal plant and roadway operations were maintained throughout the production of the Chemkrete modified mix. Initial binder testing, however, indicated the possibility of non-uniform blending of the Chemkrete addit ...
  • Sprinkle Treatment experimental project construction and three year evaluation
    Sprinkle Treatment experimental project construction and three year evaluation.
    Paul, Harold R. ;
    Doucet, Roland J.
    1989-06-01 | PDF
    This report documents the construction of a Sprinkle Treatment field trial on a high speed/high volume roadway (55 mph/8520 ADT) and presents the performance data obtained for three years after construction. Normal plant and roadway production rates were maintained during the construction of the 3.1 mile Sprinkle Treatment section. Sprinkle chip sp ...
  • Comparison of Protective Breathing Equipment Performance at Ground Level and 8000 Feet Altitude Using Parameters Prescribed by Portions of FAA Action Notice A81502 Final Report
    Comparison of Protective Breathing Equipment Performance at Ground Level and 8,000 Feet Altitude Using Parameters Prescribed by Portions of FAA Action Notice A-8150.2: Final Report
    Schlegel, T. T. ;
    Higgins, E.A.
    1989-06-01 | PDF
    Two types of crewmember protective breathing equipment (PBE) were performance tested for compliance with Action Notice A-8150.2 at ground level (-1,300 feet) and 8,000 feet altitude. PBE #1 was a "hood with oral-nasal mask," which used potassium superoxide to remove carbon dioxide and produce its oxygen supply. PBE #2 was a "hood only," which conta ...
  • Impact of the Staggers Rail Act on Grain Transportation in the Northern and Central Great Plains
    Impact of the Staggers Rail Act on Grain Transportation in the Northern and Central Great Plains
    Griffin, Gene C. ;
    Mielke, Jon M
    1989-05-01 | PDF
    This report is an assessment of the impact that rail deregulation has had on the transportation of agricultural commodities. Specifically the Staggers Rail Act of 1980 is addressed in this report.
  • Crash Test of Texas T202 Bridge Rail
    Crash Test of Texas T202 Bridge Rail
    Hirsch, T. J. ;
    Buth, C. E.
    1989-05-01 | PDF
    The Texas Type T202 concrete bridge rail is an extremely popular bridge rail in the state of Texas. The T202 rail consists of a concrete beam element 10 in. (25.4 cm) wide by 14 in. (35.6 cm) deep, mounted 27 in. (68.6 cm) high· on concrete posts located 10 ft (3 m) apart, center1 to-center spacing. The concrete posts are 7 in. (19 cm) thick by 5 f ...
  • GraphicallyOriented Nonlinear Analysis of Statically Loaded Plane Frames on Microcomputers
    Graphically-Oriented Nonlinear Analysis of Statically Loaded Plane Frames on Microcomputers
    Roschke, Paul N. ;
    Aftab, S.
    1989-05-01 | PDF
    Computer program FRAMES performs a nonlinear analysis of statically loaded plane made to existing frames using a discrete element model. Enhancements are an FORTRAN code using currently available hardware and software. The original code runs on a minicomputer with alphanumeric terminals, while the enhanced version runs improved interface that inclu ...
  • Synthesis of Traffic Management Techniques for Major Freeway Construction
    Synthesis of Traffic Management Techniques for Major Freeway Construction
    Ullman, Gerald L. ;
    Krammes, Raymond A.
    1989-05-01 | PDF
    This report summarizes the corridor traffic management experiences at completed and ongoing construction projects nationwide. A corridor traffic management plan for a major freeway construction project has three components: (1) the traffic control plan for the construction zone, (2) impact mitigation actions on alternative routes and modes in the c ...
  • Guidelines for Using WidePaved Shoulders on LowVolume TwoLane Rural Highways Based on BenefitCost Analysis
    Guidelines for Using Wide-Paved Shoulders on Low-Volume Two-Lane Rural Highways Based on Benefit/Cost Analysis
    Woods, Donald L. ;
    Rollins, John B.
    1989-05-01 | PDF
    This study considers the relative benefit/cost for the provision of wide paved shoulders on rural two-lane highways. Cost elements considered were accidents, pavement edge maintenance, paved shoulder surface maintenance, and travel time. It is concluded that wide paved shoulders (6-10 feet wide) are cost beneficial for AADT's above 1,500 vehicles p ...
  • Profilograph Correlation with Present Serviceability Index Asphalt Pavements
    Profilograph Correlation with Present Serviceability Index, Asphalt Pavements
    Walker, Roger S.
    1989-05-01 | PDF
    A number of States are beginning to use roughness measurements from the California and Rainhart profilographs for construction control of rigid pavements. A recent Texas study, Research Study 8-10-87-56, provided correlations between Present Serviceability Index (PSI) as obtained from profile measured by the Surface Dynamics Profilometer (SDP), and ...
  • Effectiveness of antistripping additives volume II
    Effectiveness of antistripping additives : volume II.
    Shute, John W. ;
    Hicks, R. G.
    1989-05-01 | PDF
    No Description
  • Effectiveness of antistripping additives volume I
    Effectiveness of antistripping additives : volume I.
    Shute, John W. ;
    Hicks, R. G.
    1989-05-01 | PDF
    No Description
  • Relationships of Anxiety Scores to Academy and Field Training Performance of Air Traffic Control Specialists
    Relationships of Anxiety Scores to Academy and Field Training Performance of Air Traffic Control Specialists
    Collins, William E. ;
    Schroeder, David J.
    1989-05-01 | PDF
    State-trait anxiety scores were used prior to the 1981 strike of air traffic control specialists (ATCSs) to estimate perceived levels of job stress in field studies of this occupational group. The present study assessed the relationship between anxiety, as measured by the State-Trait Personality Inventory (STPI), and post-strike ATCS trainee succes ...
  • Prediction of Success in FAA Air Traffic Control Field Training as a Function of Selection and Screening Test Performance
    Prediction of Success in FAA Air Traffic Control Field Training as a Function of Selection and Screening Test Performance
    Manning, Carol A. ;
    Della Rocco, Pamela S.
    1989-05-01 | PDF
    This study compared correlations between Office of Personnel Management (OPM) selection test scores for Air Traffic Control Specialists (ATCSs) and scores from the FAA Academy's second-stage screening program with measures of field training performance. Field training performance measures were collected for 3,185 en route and 1,740 terminal ATCS de ...
  • Performance Evaluation of the PuritanBennett CrewMember Portable Protective Breathing Device as Prescribed by Portions of FAA Action Notice A81502
    Performance Evaluation of the Puritan-Bennett Crew-Member Portable Protective Breathing Device as Prescribed by Portions of FAA Action Notice A-8150.2
    Higgins, E.A. ;
    McLean, G.A.
    1989-05-01 | PDF
    This study was undertaken, on request, to evaluate the performance of the Puritan-Bennett portable crew protective breathing device for contaminant leaks. O2, CO2 levels, inhalation/exhalation pressure, and inhalation temperature. Tests were conducted in the facilities of the FAA Civil Aeromedical Institute (CAMI) in Oklahoma City, OK, (test chambe ...
  • Backhaul Opportunities for North Dakota Grain Truckers
    Backhaul Opportunities for North Dakota Grain Truckers
    Dooley, Frank J ;
    Bertram, Leslie M
    1989-04-01 | PDF
    The overall objective of this report is to assist grain trucking firms manage their backhaul opportunities. The specific objectives of this report are to: 1) identify and define the industry backhaul characteristics of North Dakota grain truckers; 2) determine and describe what methods are being used to obtain backhauls; 3) determine what obstacles ...
  • Annual Report of the Maritime Administration for Fiscal Year 1988 MARAD 1988
    Annual Report of the Maritime Administration for Fiscal Year 1988 [MARAD 1988]
    United States. Department of Transportation. Maritime Administration
    1989-04-01 | Annual Reports of the Maritime Administration | PDF
    The Annual Report of the Maritime Administration (MARAD) for the fiscal year which ended on September 30, 1988, is submitted to the Congress in accordance with Section 208 of the Merchant Marine Act, 1936, as amended. It incorporates reports required by the Congress on the following topics: acquisition of obsolete vessels in exchange for vessel tra ...
  • Travel Trends in NonCBD Activity Centers
    Travel Trends in Non-CBD Activity Centers
    Gordon, Peter ;
    Richardson, Harry
    1989-04-01 | PDF
    Los Angelization, the movement of people, jobs, residences and other activities away from the CBD, is being replicated across the nation. This modern phenomenon is diminishing the importance of traditional downtown and resulting in commuting economies and shrinking markets for conventional transit. This is a case study of the travel trends in the L ...
  • Repeatability of testing procedures for resilient modulus and fatigue appendices
    Repeatability of testing procedures for resilient modulus and fatigue : appendices.
    Scholz, Todd ;
    Hicks, R. Gary
    1989-04-01 | PDF
    The article is the appendices of "Repeatability of testing procedures for resilient modulus and fatigue".Extensive use of diametral resilient modulus and fatigue testing is made by the Oregon State Highway Division to evaluate asphaltic concrete materials. Test results on similar materials (e.g., adjacent field cores), however, often indicate a poo ...
  • Repeatability of testing procedures for resilient modulus and fatigue
    Repeatability of testing procedures for resilient modulus and fatigue.
    Scholz, Todd ;
    Hicks, R. Gary
    1989-04-01 | PDF
    Extensive use of diametral resilient modulus and fatigue testing is made by the Oregon State Highway Division to evaluate asphaltic concrete materials. Test results on similar materials (e.g., adjacent field cores), however, often indicate a poor level of repeatability.In this study, laboratory fabricated briquettes were tested to evaluate the repe ...
  • Recreational Pilot Practical Test Standards for Airplane Rotorcraft
    Recreational Pilot Practical Test Standards for Airplane, Rotorcraft
    United States. Federal Aviation Administration. Flight Standards Service
    1989-04-01 | PDF
    The Aviation Standards National Field Office of the FAA has developed this book to be used as a standard by FAA inspectors and designated pilot examiners when conducting recreational pilot airmen practical tests. Flight instructors are expected to use this book in preparing applicants for practical tests. This book contains standards that set forth ...
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