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Showing 34921 - 34940 of 36747 results
  • Establishment and Management of Roadside Vegetation
    Establishment and Management of Roadside Vegetation
    Allen, Thomas J. ;
    McCully, Wayne G.
    1976-12-01 | PDF
    Straw mulch proved more effective in erosion control than re-claimed paper mulch in East Texas. Straw mulch anchored by asphalt or latex was significantly superior to a resin anchored straw mulch. There was no significant difference of Bermuda grass seedlings per square foot with latex or asphalt anchors. Bermuda grass and weeping lovegrass were th ...
  • Users manual for the Texas quickload method for foundation load testing
    Users manual for the Texas quick-load method for foundation load testing.
    Butler, H.D. ;
    Hoy, Horace E.
    1976-12-01 | PDF
    The Texas State Department of Highways and Public Transportation has·developed and implemented a "quick-load" method for load testingpiling and drilled shafts. Using this method a load test can becompleted in a relatively short time of one to two hours. On smallprojects where the time consuming AASHTO test cannot be economicallyjustified, use of th ...
  • Microscopic and XRay Examination of Rock for Durability Testing
    Microscopic and X-Ray Examination of Rock for Durability Testing
    Van Atta, Robert O. ;
    Ludowise, Harry
    1976-12-01 | PDF
    Study of quarry rocks, core, weathered rock, and road base aggregates from 12 sources in western Oregon reveals that degree and type of alteration and textural distribution of glass are the chief causes of degradation in basaltic aggregate used in road construction. Smectitic clays are the alteration products most responsible for breakdown. Samplin ...
  • ThreeDimensional Fracture Analysis
    Three-Dimensional Fracture Analysis
    Hulbert, L. E.
    1976-11-30 | PDF
    A three day workshop was held at Battelle's Columbus Laboratories on April 26-28, with the purpose of bringing together the nation's leading investigators of three-dimensional fracture to discuss together the present status of three-dimensional fracture. Proceedings of a workshop held 26-28 Apr 1976 at Battelle Columbus Laboratories, Columbus, OH.
  • An Analysis and Design Procedure for HighwayRailroad Grade Crossing Foundations
    An Analysis and Design Procedure for Highway-Railroad Grade Crossing Foundations
    Ahmad, Aziz ;
    Lytton, Robert L.
    1976-11-01 | PDF
    Both highway and railroad organizations are concerned with the maintenance problems of highway-railroad grade crossings. The Texas State Department of Highways and Public Transportation spends approximately one-half million dollars yearly for the maintenance of grade crossings. It has been the usual experience of engineers, and it is a conviction i ...
  • Stress in air traffic controllers effects of ARTSIII
    Stress in air traffic controllers : effects of ARTS-III
    Melton, C.E. ;
    Smith, R.C.
    1976-11-01 | PDF
    Physiological, biochemical, and psychological assessments of stress in air traffic controllers were made at Los Angeles (LAX) and Oakland (OAK) Terminal Radar Approach Control (TRACON) facilities before and after installation of Automated Radar Terminal Systems-III (ARTS-III). Heart rates of controllers on duty or at rest scarcely changed from befo ...
  • Physiological biochemical and multipletaskperformance responses to different alterations of the wakesleep cycle
    Physiological, biochemical, and multiple-task-performance responses to different alterations of the wake-sleep cycle.
    Higgins, E.A. ;
    Chiles, W.D.
    1976-11-01 | PDF
    Three groups, each comprising five healthy, male, paid volunteers (ages 21 to 30), were studied for 11 days. Baseline data were collected for 3 days, during which subjects adhered to a day/night routine. On the fourth day each group took a 'flight' in the altitude chamber.Following the flight day, subjects in the first group (Group I) slept from on ...
  • Determining Stiffness Coefficients and Elastic Moduli of Pavement Materials from Dynamic Deflections
    Determining Stiffness Coefficients and Elastic Moduli of Pavement Materials from Dynamic Deflections
    Michalak, C. H. ;
    Lu, D. Y.
    1976-11-01 | PDF
    The several methods of computing stiffness coefficients or elastic moduli of materials to be used in computerized pavement design procedures and in other research activities requiring the knowledge of these values are presented in this report. The methods include computer codes for calculating stiffness coefficients and elastic moduli of simple two ...
  • A Methodology for Evaluating the Public Involvement Process Used in Project Planning
    A Methodology for Evaluating the Public Involvement Process Used in Project Planning
    Weiss, Michael E. ;
    Fuller, Theron K.
    1976-11-01 | PDF
    Although there is a long history of State Department of Highways and Public Transportation (SDHPT) public involvement and although the more structured Action Plan processes have been operating for over two years, there are no established methodologies or criteria for evaluating public involvement techniques. Therefore, the methodologies and analyst ...
  • Draft notes on the Seminole Trail US 29 in Virginia
    Draft notes on the Seminole Trail (U.S. 29) in Virginia.
    Newlon, Howard
    1976-10-28 | PDF
    Notes on the attempt by the author to find documentation for the origin and validity of the designation of Route 29 in Virginia as the "Seminole Trail".
  • US Department of Transportation Nineth Annual Awards
    U.S. Department of Transportation Nineth Annual Awards
    United States. Department of Transportation
    1976-10-27 | U.S. Department of Transportation Annual Awards Ceremony | PDF
    A great American, Dr. James B. Conant, when President of Harvard University, described the pursuit of excellence for a graduating class: "Each honest calling, each walk of life, has its own elite, its own aristocracy based on excellence of performance. These words apply in full measure to our fellow co-workers whom we honor today. They are being re ...
  • Post Construction Evaluation of SulfurAsphalt Pavement Test Sections Interim Report 2
    Post Construction Evaluation of Sulfur-Asphalt Pavement Test Sections [Interim Report #2]
    Saylak, D. ;
    Gallaway, B. M.
    1976-10-01 | PDF
    To conduct post-construction testing and evaluation of a sulfur-asphalt binder concrete pavement test section located on U.S. 69, 15 miles north of Lufkin, Texas.
  • Hybrid Computer Vehicle Handling Program 1976
    Hybrid Computer Vehicle Handling Program [1976]
    Bohn, P. F. ;
    Prowznik, J.
    1976-10-01 | PDF
    This hybrid computer simulation for vehicle handling studies has been in use for four years and has been validated for a large class of two axle vehicles. The following suspensions can be simulated: (1) four wheel independent, (2) independent front and solid rear axle, (3) solid front and rear axles, and (4) any front suspensions with dual tires on ...
  • Design and Evaluation of OnFreeway Traffic Control Systems and Surveillance Techniques
    Design and Evaluation of On-Freeway Traffic Control Systems and Surveillance Techniques
    McCasland, William R. ;
    Ritch, Gene P.
    1976-10-01 | PDF
    Studies of urban traffic operations were conducted on the freeways of Texas to determine the design and effectiveness of traffic control systems and surveillance techniques. The control systems were designed to relieve peak period congestion. Surveillance techniques were studied for application in detecting disabled vehicles and their impact on the ...
  • Oil Grease and Other Pollutants in Highway Runoff
    Oil, Grease, and Other Pollutants in Highway Runoff
    Wiland, Bruce ;
    Malina Jr, Joseph F.
    1976-09-01 | PDF
    The pollutional effects of runoff from streets and highways have usually been expressed in terms of parameters commonly used to characterize municipal wastewater. This study represents an initial attempt at determining the presence or absence of certain categories of fuels, oils and tars in storm effluents. Oil, grease and heavy metals are washed f ...
  • Texturing of concrete pavements interim report No 2
    Texturing of concrete pavements : interim report No. 2.
    Ross, Joseph E. ;
    Law, Sheldon M.
    1976-09-01 | PDF
    The purpose of this research study is to document and evaluate the findings of the Category II experimental concrete texturing project. Under this plan of experimental study, several texting techniques were tried and will be compared in order to determine which concrete pavement texture will perform best in regard to skid resistance, durability and ...
  • The Effects of a Channel Relocation Project on the Ecosystem of Little Sugar Creek Benton County Arkansas
    The Effects of a Channel Relocation Project on the Ecosystem of Little Sugar Creek, Benton County, Arkansas
    Tyler, Robert
    1976-09-01 | PDF
    The widening of U.S. 71 in Northwest Arkansas required that the Arkansas State Highway and Transportation Department relocate a portion of the channel of the Little Sugar Creek. A channel relocation project, in which careful channel construction and provisions for habitat were an integral part of the plan; was carried out and the effects monitored. ...
  • Operational Characteristics of Mays Ride Meter
    Operational Characteristics of Mays Ride Meter
    Epps, Jon A. ;
    Shaw, C. W.
    1976-09-01 | PDF
    A review of the literature together with field data obtained for the vehicle mounted Mays Ride Meter roughness measuring device is presented. The operational characteristics of the Mays Ride Meter are presented by examining the type of vehicle in which it is used, changes in vehicles with time, and the effects of tire pressure, air temperature, pas ...
  • Implementing Maintenance Rating Techniques
    Implementing Maintenance Rating Techniques
    Epps, J. A. ;
    Larrimore Jr, I. E.
    1976-09-01 | PDF
    Training schools were conducted to instruct Texas State Department of Highways and Public Transportation personnel in the use of the Maintenance Rating System. The results of these schools were utilized to determine the accuracy of the maintenance rating scores obtained on a particular roadway section. An urban maintenance rating system has been de ...
  • The Development of Maintenance Management Tools for Use by the Texas State Department of Highways and Public Transportation
    The Development of Maintenance Management Tools for Use by the Texas State Department of Highways and Public Transportation
    Epps, Jon A. ;
    Larrimore, Jr. I. E.
    1976-09-01 | PDF
    Close cooperation among Texas State Department of Highways and Public Transportation district maintenance operational personnel, central office representatives and the Texas Transportation Institute study team together with a review of the literature provided the necessary information to develop selected maintenance management tools. These manageme ...
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