TRIGONOMETRIC CONSTRUCTION STAKING (TRIGSTAK)

TRIGSTAK (ACRONYM FOR TRIGONOMETRIC STAKING) IS A METHOD OF CONSTRUCTION STAKING BY HORIZONTAL AND VERTICAL INTERSECTION LINES OF SIGHT FROM TWO OR MORE THEODOLITES STRATEGICALLY LOCATED AT THE CONSTRUCTION SITE OR ROAD ALIGNMENT. IT IS ACTUALLY AN EXTENSION OF THE AUTOMATION ALREADY ACHIEVED IN THE MAPPING AND DESIGN OF MOUNTAIN HIGHWAYS. PHOTOGRAMMETRIC DIGITIZING IS USED TO OBTAIN A MATHEMATICAL MODEL OF THE EARTH'S SURFACE OVER THE ENTIRE AREA OF THE PROPOSED CONSTRUCTION. THIS DIGITAL TERRAIN MODEL IS STORED IN A COMPUTER ALONG WITH THE HORIZONTAL AND VERTICAL GEOMETRY AND ROADBED TEMPLET OF THE PROPOSED HIGHWAY TO OBTAIN A MASS DIAGRAM AND AN EARTHWORK SUMMARY. INPUT OF THE TRIGSTAK PROGRAM ITSELF INCLUDES COORDINATES OF THE TRIANGULATION STATIONS, THE STATION (PLUSES) OF SLOPE STAKES TO BE SET FROM EACH TRIANGULATION STATION, AND VERTICAL CONTROL DATA. TRIGSTAK IS ALSO USED TO CHECK PHOTOGRAMMETRIC MAPS AND DIGITIZING USING THE TERRAIN DATA ONLY. /AUTHOR/

  • Supplemental Notes:
    • Vol 28, No 3, PP 437-445
  • Authors:
    • Stipp, D W
  • Publication Date: 1968-9

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Filing Info

  • Accession Number: 00215135
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 26 1994 12:00AM