APPLICATIONS OF INTERACTIVE GRAPHICS IN MICHIGAN'S STATEWIDE TRANSPORTATION MODELING SYSTEM

Modern transportation agencies face increasing responsibilities and decreasing revenues. The only viable solution is increased productivity and efficiency. NETEDIT, an operational interactive method of updating, displaying, and interrogating networks, has allowed Michigan's Department of Transportation to increase its analysis capabilities without sacrificing production time. The utility of such a process is easily seen by contrasting manual coding and batch updating with the interactive update process. NETEDIT gives the user instant pictorial feedback, which enables correction of errors on the spot. This allows the average elapsed time for generation of alternatives to drop from two weeks to 4h. In addition, the ability to vary the way a link is drawn--solid, dotted, dashed, crosshatched, even varying bandwidths--based on its attributes lends versatility. The addition of a digitizer tablet has allowed creation of 2000-node networks in two weeks. A tree-plotting subroutine eliminates much of the elapsed time in network calibration. Most importantly, NETEDIT, together with Michigan's Statewide Transportation Modeling System, has been used in more than 350 actual planning applications over the past two and one-half years. As a result, NETEDIT has become a valuable transportation planning technique in Michigan. (Author)

Media Info

  • Media Type: Web
  • Features: Figures; Maps; Photos; References;
  • Pagination: pp 25-33
  • Monograph Title: Computer graphics applications
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00335216
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Oct 28 1981 12:00AM