THE GCARS SYSTEM FORTRAN IV PROGRAMMERS MANUAL PART C- PROGRAMS FOR CONTOUR MAPPING

THE GCARS SYSTEM IS A COMPUTER-AIDED HIGHWAY LOCATION SYSTEM. SINCE THE GCARS SYSTEM UTILIZES THREE-DEMENSIONAL DATA, PROCEDURES FOR DISPLAYING SUCH DATA WERE DEVELOPED. THE FORTRAN COMPUTER PROGRAMS USED BY THE GCARS SYSTEM ARE DESCRIBED TO PREPARE CONTOUR MAPS OF THE THREE-DIMENSIONAL MODELS OF THE INDIVIDUAL OR COMBINED HIGHWAY LOCATION FACTORS. CONTOUR MAPS ARE PREPARED ON PRINT AS PART OF THE NORMAL JOB OUTPUT, OR THEY CAN BE PRODUCED AS PEN AND INK DRAWINGS ON THE CALCOMP PLOTTER. THE CALCOMP CONTOURING PROGRAM, PROGRAM CONTOUR AND ITS ASSOCIATED SUBROUTINES, IS A SEMI-AUTONOMOUS SEQUENCE OF ROUTINES WHICH ACCEPTS PUNCHED -CARDS CONTAINING THE GRIDDED VALUES OF THE SURFACE TO BE CONTOURED. SUBROUTINE STATS IS A UTILITY SUBROUTINE WHICH COMPUTES STATISTICAL MEASURES OF DATA ARRAYS. THE ROUTINE DETERMINES THE MAXIMUM AND MINIMUM VALUES OF THE DATA, AND COMPUTES THE MEAN, STANDARD DEVIATION AND VARIANCE.

• Supplemental Notes:
  • No 27, 93 PP, 12 FIG, 1 TAB, 18 REF
• Corporate Authors:

  Purdue University/Indiana Department of Transportation JHRP

  Purdue University, School of Civil Engineering
  West Lafayette, IN  United States  47907-1284
• Authors:
  • Turner, A K
• Publication Date: 1969-9

Subject/Index Terms

• TRT Terms: Computer programs; Contours; Data plotters; Digital computers; Highways; Information display systems; Location; Mapping; Mathematical models; Punched cards; Statistical analysis
• Uncontrolled Terms: Highway location
• Old TRIS Terms: Displays
• Subject Areas: Data and Information Technology; Design; Highways;

Filing Info

• Accession Number: 00202812
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 24 1970 12:00AM