LEGAL ASPECTS OF CONTROL SURVEYS

CONTROL SURVEY DATA ARE INHERENTLY TENTATIVE VALUES WITH PROBABLE ERRORS DERIVED IN THE ADJUSTMENT OF REDUNDANT MEASUREMENTS RELATED TO A TENTATIVE GEODETIC DATUM. FEEDBACK IN THE GEODETIC ENGINEERING COMPLEX, TOGETHER WITH ACCUMULATING DATA FROM THIS AND RELATED PURE AND ENGINEERING SCIENCES, PERMITS MAKING RECURRENT READJUSTMENTS TO IMPROVE BOTH THE TENTATIVE GEODETIC DATUM AND THE FIT OF ALL ACCUMULATED AND NEAR-FUTURE MEASUREMENT RESULTS. THE NAS/NAE COMMITTEE ON A NEW WORLD GEODETIC DATUM FOUND IT TO BE TECHNICALLY AND ECONOMICALLY FEASIBLE, WITHIN THE NEXT DECADE, TO REDUCE PROBABLE ERRORS TO MINIMA OF 1:100000 FOR MODERATELY SHORT LINES AND 1:1000000 FOR LONG LINES. ACCURATE MEASUREMENTS OF VERY LONG ARCS, REPEATED AT INTERVALS APPROXIMATING A HALF CENTURY, TOGETHER WITH THE RESULTS OF SOME NEW VERY PRECISE PROCEDURES, INDICATE RELATIVE MOTIONS IN THE SAME SENSE AND WITH REASONABLY GOOD NUMERICAL AGREEMENT WITH GEOLOGIC-TIME ESTIMATES OF SEA FLOOR SPREADING, CONTINENTAL PLATE DRIFTS AND OTHER RELATED MOTIONS. CONTROL SURVEY DATA MUST NOW BE REGARDED AS SUBJECT TO RECURRENT ITERATIVE IMPROVEMENTS IN ACCURACY AND AS BEING SLIGHTLY VARIABLE IN REAL TIME. PRELIMINARY REFERENCE TO STATUTE AND CASE LAW INDICATES NEED FOR FURTHER SEARCH AND EXAMINATION OF THE LEGAL ASPECTS OF CONTROL SURVEYS AND THEIR RELATIONS TO GOVERNMENTAL AND PRIVATE BOUNDARIES, RIPARIAN RIGHTS, SURVEYING AND MAPPING IN GENERAL, ENVIRONMENTAL AND PLANNING CONTROLS, TERRESTRIAL, SEA, AIR AND SPACE NAVIGATION AND SAFETY, AND OTHER RELATED ACTIVITIES OF MAN. /AUTHOR/

  • Supplemental Notes:
    • pp 272-294, 28 REF
  • Authors:
    • Laird, M O
  • Publication Date: 1971-3

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Filing Info

  • Accession Number: 00202922
  • Record Type: Publication
  • Report/Paper Numbers: pp 782-785
  • Files: TRIS
  • Created Date: Aug 8 1971 12:00AM