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Showing 36581 - 36600 of 36747 results
  • An analysis of sitting areas and pressures of man
    An analysis of sitting areas and pressures of man.
    Swearingen, J.J. ;
    Wheelwright, C.D.
    1962-01-01 | PDF
    Studies of sitting area on a plane rigid surface for a group of 104 male subjects were made. Area was found to vary with height and weight and to increase with age up to 40 years after which there is a steady decline. Means were 179.4 sq. in. for area and .92 pounds/sq/ in. for average pressure. Sitting contact area was found to increase with exper ...
  • Elementary Sampling for Traffic Engineers
    Elementary Sampling for Traffic Engineers
    Votaw, David Freeman ;
    Levinson, Herbert S.
    1962-01-01 | PDF
    Over the centuries, land travel has evolved from foot to wheel to self-propelled vehicle. With each advance in mode, there has ensued a dramatic revolution in distance, time, and travel pattern. Within memory there was a period of relatively little travel as compared to the motor vehicle age. Man lived a quiet life in the neighborhood of his birth, ...
  • ApproachEnd Treatment of Channelization Signing and Delineation
    Approach-End Treatment of Channelization: Signing and Delineation
    Rowan, Neilon J.
    1962-01-01 | PDF
    This report was developed from a research project conducted by the Texas Transportation Institute in cooperation with the Texas Highway Department. The general objectives of the research project were to evaluate the effects of design, signing, delineation, and illumination of channelization on the factors of safety, efficiency of operation, and cap ...
  • Problems in air traffic management I Longitudinal prediction of effectiveness of air traffic controllers
    Problems in air traffic management. I., Longitudinal prediction of effectiveness of air traffic controllers.
    Trites, David K.
    1961-12-01 | PDF
    Current (1961) job performance evaluations and medical history data were obtained for 149 of 197 men trained in air traffic control work in 1956. Evaluations of psychological test and biographical data collected at the time they went through training indicate that:1.Psychological tests can make a useful contribution to screening applicants for air ...
  • A Report on the Physical Properties of Concrete at Early Ages
    A Report on the Physical Properties of Concrete at Early Ages
    Jones Jr, Truman R. ;
    Hirsch, T.J.
    1961-08-01 | PDF
    This portion of the study reported herein was undertaken in order to obtain a better understanding of the physical properties of concrete at an early age. The data presented in this report includes the strength, shrinkage, coefficient of expansion and contraction, and tensile deformation properties of concrete from 12 hours of age to 28 days of age ...
  • Design and operation of diamond interchanges
    Design and operation of diamond interchanges.
    Pinell, Charles ;
    Capelle, Donald G.
    1961-08-01 | PDF
    This report is a presentation of results obtained from research studies ondiamond interchanges conducted by the Texas Transportation Institute in cooperation with the Texas Highway Department. These studies were conductedin connection with Research Project RP-16, .. Ramps and Interchanges, .. andhad the objective of investigating the capacity, desi ...
  • Annual Report of the Maritime Administration 1961 MARAD 1961
    Annual Report of the Maritime Administration 1961 [MARAD 1961]
    United States. Maritime Administration
    1961-08-01 | Annual Reports of the Maritime Administration | PDF
    Report of the Federal Maritime Board and Maritime Administration covering their activities for the fiscal year ended June 30, 1961.
  • The Applied Environmental Research Program of the Department of the Army Annual Report June 1961
    The Applied Environmental Research Program of the Department of the Army: Annual Report, June 1961
    United States. Army. Office of the Quartermaster General. Research and Engineering Command
    1961-06-01 | PDF
    This report is the annual accounting by the Quartermaster Corps of its stewardship of applied environmental research within the Department of the Army. This stewardship is exercised by the Quartermaster Corps under its primary cognizance for the field as defined and assigned by the General Staff, U.S. Army (Appendix 1). Applied environmental resear ...
  • Armenia in the SevenYear Plan
    Armenia in the Seven-Year Plan
    Kochinyan, A.
    1961-05-17 | PDF
    The author of this brochure chairman of the Council of Ministers of the Armenian SSR, tells the readers of the grandiose changes that have occurred in Armenia during the years of Soviet power, and of the prospectives for its development during the years of the Seven-Year Plan. The brochure contains material that is of interest to agitators and prop ...
  • Final Report on Project RP3 Improvement of Asphaltic Materials
    Final Report on Project RP-3: Improvement of Asphaltic Materials
    Jimenez, Rudolf A. ;
    Gallaway, Bob M.
    1961-02-01 | PDF
    The investigation reported herein concerns the changes which have occurred in asphalt cements recovered from test roads during six years of service. Results of standardized tests and special tests performed on the asphalts are shown to compare the initial properties of the asphalts with subsequent changes in physical and chemical properties. Differ ...
  • Hardening of Paving Asphalts and Relation to Composition
    Hardening of Paving Asphalts and Relation to Composition
    Traxler, R. N.
    1961-02-01 | PDF
    The objectives of this project were to: (1) Investigate the paving asphalts used by the Texas Highway Department and determine how these binders can best be classified as to quality; (2) Establish specifications to assure use of superior asphalts by the Department; and (3) Determine how the durability of paving asphalts can be improved. A modified ...
  • The Elimination of Random Car Sequence in Trains
    The Elimination of Random Car Sequence in Trains
    Landow, Herbert Trask
    1961-01-01 | PDF
    Herbert T. Landow’s "The Elimination of Random Car Sequence in Trains" (1961) emphasizes the economic and operational consequences of random car sequencing during train assembly. He compares traditional flat and hump yard designs, analyzing their physical layouts, switching procedures, and limitations in eliminating randomness within train consists ...
  • Interstate System TraveledWay Study Instructions for Updating 1961
    Interstate System Traveled-Way Study: Instructions for Updating (1961)
    United States. Federal Highway Administration
    1961-01-01 | PDF
    No Description
  • Distribution of Loads in Beam and Slab Bridge Floors
    Distribution of Loads in Beam and Slab Bridge Floors
    Senne Jr, Joseph Harold
    1961-01-01 | PDF
    Bridge Floors Currently most states use the American Association of State Highway Officials (AASHO) specifications for design of slab and beam floor systems. Since the present AASHO specifications (1957) show considerable error in the load distribution to the beams of some bridges, a number of methods have been developed by various individuals in o ...
  • A Quarter Century of Financing Municipal Highways 1937 1961
    A Quarter Century of Financing Municipal Highways (1937 - 1961)
    United States. Federal Highway Administration
    1961-01-01 | PDF
    No Description
  • Parking Garage Operation
    Parking Garage Operation
    Whiteside, Robert E.
    1961-01-01 | PDF
    This monograph examines the necessity of planned parking and parking garages in urban areas and central business districts circa 1961. The type, layout, and location of parking garages are best determined by a comprehensive study often based on interviews with potential parkers. This aids in determination of origins, destinations, walking distances ...
  • Soil Stabilization With Chemicals
    Soil Stabilization With Chemicals
    Davidson, D. T
    1960-12-21 | PDF
    This bulletin is the second in a series of compilations of reports on completed research done for the Iowa Highway Research Board Project HR-1, "The Loess and Glacial Till Materials of Iowa; an Investigation of Their Physical and Chemical Properties and Techniques for Processing Them to Increase Their All-Weather Stability for Road Construction." T ...
  • Changes in Land Value Land Use and Business Activity Along a Section of the Interstate Highway System in Temple Texas
    Changes in Land Value, Land Use, and Business Activity Along a Section of the Interstate Highway System in Temple, Texas
    Wootan, Charley V. ;
    Meuth, Hugo G.
    1960-09-01 | PDF
    The study was to include an analysis of the economic impact on local areas of the Interstate Highway System. The specific objectives were to measure the changes in land value, land use, business activity, travel habits and general community development that could be associated with this new highway facility.
  • Highway Relocations US 30Lincoln Highway 1960 SD WMV 720x48029fps1920 MB
    Highway Relocations (U.S. 30/Lincoln Highway, 1960) [SD .WMV (720x480/29fps/192.0 MB)]
    Iowa. State Highway Commission. Inforamtion Section
    1960-01-01 | WMV
    By the late 1950s, it had become increasingly clear to Iowa transportation professionals that highways, roads and streets in the state needed to be redesigned to safely and efficiently carry ever-growing traffic volumes. This 16-minute film, produced in 1960 and titled Highway Relocations, was created by the Iowa State Highway Commission (ISHC), no ...
  • Highway Statistics 1960
    Highway Statistics 1960
    United States. Bureau of Public Roads
    1960-01-01 | PDF
    This publication, the sixteenth of an annual series, presents the 1960 statistical and analytical tables of general interest on motor fuel, motor vehicles, highway-user taxation, State and local highway finance, highway mileage, and Federal aid for highways. Data for the financing of highways by county and local rural governments are also included, ...
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