Now showing items 921-940 of 1023

    • Coordinate Conversion from Nad to Nad 

      D. R. Graff (American Society of Civil Engineers, 1988)
      A method for converting North American Datum (NAD) 27 coordinates to NAD 83 coordinates is presented. The method is tested on over 1,000 control points, known in both NAD 27 and NAD 83, obtained from the National Geodetic ...
    • Shift to Digital Mapping: “Points of Impact” on Management 

      David J. Coleman; John D. McLaughlin (American Society of Civil Engineers, 1988)
      The shift in market emphasis from conventional to digital mapping is now approaching completion in Canada. However, while hardware and software are evolving rapidly, management preparation and practices are not keeping ...
    • Draft Right‐of‐Way Guide 

      Unknown author (American Society of Civil Engineers, 1988)
    • Estimating Pit Excavation Volume Using Nonlinear Ground Profile 

      Said M. Easa (American Society of Civil Engineers, 1988)
      The formula used in surveying applications for estimating excavation volume for a rectangular pit assumes that the ground profile between the grid points is linear. In this paper, formulas that consider a nonlinear ground ...
    • Coordinate Systems Used in Geodesy: Basic Definitions and Concepts 

      Tomás Soler; Larry D. Hothem (American Society of Civil Engineers, 1988)
      In order to properly apply transformations when using data derived from different space techniques, the corresponding frames should be clearly stated. Only then can a rigorous comparison of results be established. This ...
    • Position Tolerance in Land Surveying 

      David A. Tyler (American Society of Civil Engineers, 1987)
      Standards of practice or recommended procedures in land surveying, often including statements concerning the accuracy or positional tolerance of surveyed points, are currently being established in many parts of the country. ...
    • Area of Irregular Region with Unequal Intervals 

      Said M. Easa (American Society of Civil Engineers, 1988)
      Simpson one‐third formula for calculating the area of an irregular region requires that the intervals between measurements be equal. In practice, however, taking measurements at equal intervals may be neither economical, ...
    • Special Survey Instrumentation for Deformation Measurements 

      W. F. Teskey (American Society of Civil Engineers, 1988)
      Deformation measurements on man‐made structures are important because they provide an independent check on whether or not the structure is exhibiting a safe deformation behavior. These measurements are especially critical ...
    • Improved Method for Locating Centroid of Earthwork 

      Said M. Easa (American Society of Civil Engineers, 1988)
      Location of the centroid (center of mass) of a cut or fill section is needed in roadway earthwork allocations which are designed by the mass‐haul diagram (MHD) and optimization methods. In the MHD, the centroid location ...
    • Surveying Engineering Education for the 21<sup>st</sup> Century 

      J. E. Colcord (American Society of Civil Engineers, 1988)
      Following a brief history of surveying education in the United States, and the current ABET (Accreditation Board for Engineering and Technology) requirements and curricula, the paper predicts the role of the surveying ...
    • Precision in Cross‐Sectional Area Calculations on Earthwork Determination 

      Youssuf M. Siyam (American Society of Civil Engineers, 1987)
      Results from an investigation have shown that errors resulting from the use of approximate methods for cross‐sectional area calculation are insignificant in earthwork volume determination. A simplified cross section can ...
    • Reviewers of the Journal of Surveying Engineering 

      Unknown author (American Society of Civil Engineers, 1988)
    • Monitoring of High‐Rise Buildings 

      Gunther Greulich; Clifford E. Rober (American Society of Civil Engineers, 1988)
      Tall buildings have mushroomed in Boston as they have elsewhere. Modern technology has made high‐rise construction efficient and architects more daring. The surveying engineer faces many adversities during the translation ...
    • Editor's Note 

      Earl F. Burkholder (American Society of Civil Engineers, 1988)
    • Irregular Boundary Area Computation by Simpson's 3/8 Rule 

      Ismat M. El Hassan (American Society of Civil Engineers, 1987)
      The trapezoidal rule and Simpson's 1/3 rule are the most common methods for computation of the area of irregular boundary. The trapezoidal rule assumes that the irregular boundary is composed of segments of straight lines ...
    • Technical Standards for Boundary Surveys Developing Model Law 

      Harlan J. Onsrud; Mathew C. Swanson; Steven D. Johnson (American Society of Civil Engineers, 1987)
      With recent advances in surveying field and computational techniques, the technical standards for boundary surveys of the individual states are rapidly becoming out of date and are inapplicable even now in controlling the ...
    • Computer‐Aided Surveying in Urban Building Construction 

      Noel Harrelson (American Society of Civil Engineers, 1987)
      In 1984–1985 the Crescent, a multiuse building complex in Dallas, Texas, was constructed in a fast‐track scheme which employed many unique applications of field computers, as well as several unusual construction surveying ...
    • Planning and Performing Surveys on Megaproject 

      Gerald Pavlic; Dan B. Chatfield (American Society of Civil Engineers, 1987)
      The Milwaukee Metropolitan Sewerage District started the Milwaukee Water Pollution Abatement Program in the summer of 1977. The program is in its tenth year with completion scheduled for 1992. Technical memorandums were ...
    • Low‐Cost Approach to Digital Mapping 

      Y. Doytsher; B. Shmutter (American Society of Civil Engineers, 1987)
      Mapping at large scales is presented as a process of forming a topographic and planimetric data base. The main stages of the process such as data collection, data editing, and data display are discussed. It is shown that ...