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/

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/23/23-047.pdf
• Supplemental Notes:
  • Vol 23, pp 552-554, 1 PHOT. 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:
  • Harden, M J
• Publication Date: 1944

Media Info

• Media Type: Digital/other
• 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:
  • Highway Research Board Proceedings
  • Volume: 23
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aerial photography; Surveying; Terrain; Topographic maps
• Old TRIS Terms: Topographic mapping
• Subject Areas: Design; Highways;

Filing Info

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