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)

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1980/787/787-004.pdf
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=APPLICATIONS+OF+INTERACTIVE+GRAPHICS+IN+MICHIGAN'S+STATEWIDE+TRANSPORTATION+MODELING+SYSTEM&author=T.+Gotts&author=R.+Esch&publication_year=1980
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Computer Graphics and Interactive Graphics. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Gotts, Terry
  • Esch, Richard
• Conference:
  • 59th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1980-1-21 to 1980-1-25
• Publication Date: 1980

Media Info

• Media Type: Web
• Features: Figures; Maps; Photos; References;
• Pagination: pp 25-33
• Monograph Title: Computer graphics applications
• Serial:
  • Transportation Research Record
  • Issue Number: 787
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Calibration; Computer graphics; Emergency response time; Errors; Feedback control; Mathematical models; Reaction time; State departments of transportation; Transportation; Transportation planning; Values in measurement
• Uncontrolled Terms: Correction (Mathematics); Feedback; Interactive graphics; Transportation models
• Geographic Terms: Michigan
• Old TRIS Terms: Plotting
• Subject Areas: Planning and Forecasting; Transportation (General); I72: Traffic and Transport Planning;

Filing Info

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