HIGH SPEED COMPUTING TO FACILITATE REAL TIME ANALYSIS OF TRANSPORTATION PLANNING ALTERNATIVES

This project built upon previous experiences with supercomputing and GIS. It investigated procedures for integrating supercomputer and GIS capabilities in transportation modeling. The researchers working on this project had previously successfully linked TRANPLAN and a GIS program on computer workstations. This batch mode linkage was limited, however, to exploiting the data management and output capabilities of GIS. Further, the time required for a single run of the travel demand model for a medium to large region prohibited the interactive viewing of outputs resulting from changes in assumption and data. The goal of this project was to demonstrate the usefulness of high speed computing to transportation planning. The goal was met by developing an interactive system whereby GIS can be used to change demand model inputs, call for a run of the travel demand model on a mainframe computer, and display the results. The user interface is a multi-layer thematic map graphic which improves the user's ability not only to modify data and assumptions, but to recognize the implications of changes through overlay of input and output networks.

• Supplemental Notes:
  • Sponsored by Department of Transportation, Washington, DC, University Transportation Centers Program, and Midwest Transportation Center, Ames, IA.
• Corporate Authors:

  Midwest Transportation Consortium

  Iowa State University, 2711 South Loop Drive, Suite 4700
  Ames, IA  United States  50010-8664
• Authors:
  • Souleyrette, Reginald Roy
  • Hans, Z N
• Publication Date: 1995-1

Language

• English

Media Info

• Pagination: 68 p.

Subject/Index Terms

• TRT Terms: Data management; Geographic information systems; Information processing; Real time control; Transportation planning; Travel demand
• Uncontrolled Terms: Interactive models
• Old TRIS Terms: Real time operations
• Subject Areas: Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00719121
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 16 1996 12:00AM