USE OF STEREOSCOPIC METHODS IN PREPARING TOPOGRAPHIC MAPS FROM AERIAL PHOTOGRAPHS

THE PROCESS OF PREPARING TOPOGRAPHIC MAPS BY THE MULTIPLEX INSTRUMENT INVOLVES THE USE OF AERIAL PHOTOGRAPHS TO FORM TRUE SCALE STEREOSCOPIC MODELS OF THE TERRAIN. THE NECESSARY MEASUREMENTS FOR POSITION AND ELEVATION CAN BE MADE MUCH MORE RAPIDLY THAN SIMILAR DETERMINATIONS CAN BE MADE BY SURVEY PARTIES OPERATING IN THE FIELD. OTHER ADVANTAGES OF THE METHOD INCLUDE THE RELATIVELY LARGE SCALES AT WHICH THE DRAWINGS ARE MADE, THE ACCURACY AT WHICH HORIZONTAL POSITIONS ARE REPRESENTED, AND THE FAITHFULNESS OF THE CONTOUR LINES TO THE TRUE GROUND FORMS. THE USUAL DELAYS SUCH AS INCLEMENT WEATHER MET BY FIELD SURVEY PARTIES ARE NOT ENCOUNTERED. /AUTHOR/

  • Supplemental Notes:
    • Vol 23, pp 552-554, 1 PHOT
  • Authors:
    • Harden, M J
  • Publication Date: 1944

Media Info

  • Monograph Title: Proceedings of the Twenty-Third Annual Meeting of the Highway Research Board Held at Edgewater Beach Hotel, Chicago, Illinois November 27-30, 1943
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00202896
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 1 1971 12:00AM