ACCURACY REQUIREMENT AND USES OF ELECTRONIC-MEASURING DEVICES FOR SURVEYING PHOTOGRAMMETRIC CONTROL

METHODS OF HIGHWAY SURVEYING ARE ANALYZED FROM THE ERROR PROPAGATION POINT OF VIEW, PROVIDING MATHEMATICAL AND PRACTICAL EXAMPLES. THESE METHODS ARE AERIAL PHOTOGRAMMETRY, ELECTRONIC DISTANCE-MEASURING INSTRUMENTS, SUPPLEMENTED BY USE OF HIGH-SPEED ELECTRONIC COMPUTERS. THESE METHODS MUST BE HARMONICALLY ORGANIZED TO FULFILL THE DEMAND FOR MASS PRODUCTION. THE FOLLOWING CONCLUSIONS RESULTED' 1/ EMPLOYMENT OF ELECTRONIC SURVEYING IN CONNECTION WITH ESTABLISHMENT OF CONTROL FOR PHOTOGRAMMETRIC PURPOSES IS IDEAL, 2/ PERMANENT USE OF STATION MARKERS AND TARGETING THEM BEFORE PHOTOGRAPHED ARE RECOMMENDED FOR ELECTRONICALLY MEASURED TRAVERSES, 3/ USE OF STATE PLANE COORDINATE SYSTEM IS RECOMMENDED, 4/ THE INCREASE IN CONTROL POINTS WILL OCCUR AS RAPIDLY AS PRECISION SURVEYING IS DONE PHOTOGRAMMETRICALLY WITHOUT HAVING ANY MORE THAN THE MINIMUM NUMBER OF FIELD SURVEYED MEASUREMENTS, AND 5/ FURTHER INVESTIGATIONS ARE REQUIRED IN AERIAL TRIANGULATION FOR PRECISE SURVEYING, APPLICATION OF NUMERICAL PHOTOGRAMMETRY FOR RIGHT-OF-WAY LAND ACQUISITION, AND SPECIFICATIONS FOR GROUND SURVEYING IN WHICH THE NEW ADVANCED METHODS ARE TO BE EMPLOYED.

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 44-51
  • Monograph Title: Photogrammetry and Aerial Surveys 1963
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00202549
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Dec 12 1994 12:00AM