PHOTOLOGGING TO OBTAIN DIMENSIONS

HAVING A DETAILED PHOTOGRAPHIC RECORD OF EACH HIGHWAY, ITS APPURTENANCES, AND ITS ADJACENT FEATURES, IS ADVANTAGEOUS FOR EVOLVING MAINTENANCE PROGRAMS, CORRECTING DEFECTS, AND ELIMINATING HAZARDS. IF THE RECORD CAN BE USED FOR DETERMINING POSITION, SPACING, AND RELEVANT DIMENSIONS, IT WILL BE FULLY EFFECTIVE. TECHNIQUES ARE PRESENTED FOR COMPUTING DIMENSIONS, USING MEASUREMENTS MADE ON THE PHOTOGRAPHS TAKEN SINGLY AND ALONG THE HIGHWAY, OR AT RANDOM, IF NECESSARY. TESTS INDICATE POSITION AND DIMENSION DETERMINED USING THE DEVELOPED EQUATIONS AND DO NOT DIFFER BY MORE THAN FIVE PERCENT FROM ACTUAL VALUES. GREATER PRECISION IS FEASIBLE, IF FIDUCIAL MARKS ARE PROVIDED AND ACCURATE POSITIONING OF THE PERSPECTIVE CENTER IS READILY OBTAINABLE. /AUTHOR/

  • Corporate Authors:

    Soc Phot-optical Instrum Engrs Proc

    ,    
  • Authors:
    • Pryor, W T
  • Publication Date: 1973-4

Media Info

  • Pagination: p. 103-11
  • Serial:
    • Volume: 37

Subject/Index Terms

Filing Info

  • Accession Number: 00203032
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 22 1973 12:00AM