DIGITIZING STEREOPLOTTER OUTPUT FOR PRELIMINARY DESIGN AND CONSTRUCTION

THE AUTO-TROL SCALER, AN ANALOG-DIGITAL CONVERTER DEVELOPED FOR THE FEDERAL HIGHWAY PROJECTS OFFICE, REGION 9, DENVER, COLORADO, IS ONE ANSWER TO THE PROBLEM OF CROSS- SECTIONING WITH THE KELSH STEREOPLOTTER. ACTUAL DEVELOPMENT OF THIS INSTRUMENT WAS BEGUN IN OCTOBER 1959 AND COMPLETED IN MARCH 1960. THE IMPETUS FOR THIS DEFINITE STEP FORWARD WAS THE NEED FOR A MODERN AND APPLICABLE INSTRUMENT DESIGNED TO EXTRACT ACCURATE, BASIC TERRAIN DATA NECESSARY FOR HIGHWAY DESIGN BY PHOTOGRAMMETRIC METHODS. THIS INSTRUMENT COMPILES THE INFORMATION IN A CONVENTIONAL MANNER ACCEPTABLE TO THE HIGHWAY ENGINEER AND AT THE SAME TIME PREPARES THE INFORMATION IN A FORM ACCEPTABLE FOR ELECTRONIC PROCESSING. /AUTHOR/

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  • Supplemental Notes:
    • No 312, pp 43-73, 10 FIG, 2 APP Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
  • Authors:
    • Winsor, D E
    • Preston, E S
  • Conference:
  • Publication Date: 1961

Media Info

  • Media Type: Digital/other
  • Monograph Title: Photogrammetry and aerial surveys: development and applications - 1961
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00202657
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Dec 9 1994 12:00AM