INTEGRATION OF GEOGRAPHIC INFORMATION SYSTEMS WITH A TRAVEL DEMAND FORECASTING MODEL

Saskatchewan Department of Highways and Transportation (DHT) conducted a pilot study in 1989 to assess the benefits of utilizing a GIS to graphically illustrate and query the existing corporate databases. The success of this pilot study led to the full development and implementation of GIS for the Department. In August 1990, DHT initiated a planning study of the rural and suburban highways surrounding Saskatoon, throughout one of six highway districts of the Department. The study had two objectives: first, the study provided a regional highway system plan for the Saskatoon District. This was based upon the development of a travel database, and the calibration of a travel demand forecasting model. The second objective was the implementation of a strategy for updating and managing the highway system plan. This required a means of transferring information between the travel demand model and DHT's GIS and databases. Together, these give DHT the capability of forecasting travel demands, calculating level of service and capacities, and setting functional design standards and control of access levels. This paper describes the full scale integration by the Department of GIS with a travel demand forecasting model. The finished product is a microcomputer based system capable of generating, distributing and assigning future traffic volumes to the existing or modified highway network. The system calculates level of service parameters, and displays input and output data on a digitized base map of the Saskatoon District. (A) For the covering abstract of the conference see IRRD Abstract no. 807788.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1895102324
• Corporate Authors:

  Transportation Association of Canada (TAC)

  401-1111 Prince of Wales Drive
  Ottawa, Ontario  Canada 
• Authors:
  • Kriger, D
  • Hossack, M
  • Schlosser, M
• Conference:
  • PROCEEDINGS OF THE 1991 ANNUAL CONFERENCE OF THE TRANSPORTATION ASSOCIATION OF CANADA, WINNIPEG, MANITOBA, SEPTEMBER 15-19, 1991, VOLUME 3
• Publication Date: 1991

Language

• English

Media Info

• Features: References;
• Pagination: A5-A18

Subject/Index Terms

• TRT Terms: Automatic control; Automation; Conferences; Data banks; Forecasting; Highways; Level of service; Networks; Scale models; Structural models; Traffic counts
• Uncontrolled Terms: Transportation networks
• Geographic Terms: Canada
• ITRD Terms: 3882: Automatic; 8018: Canada; 8525: Conference; 8614: Database; 132: Forecast; 2755: Highway; 653: Level of service; 6205: Model (not math); 1054: Network (traffic); 689: Traffic count
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00631549
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• ISBN: 1-895102-32-4
• Files: ITRD, ATRI
• Created Date: Jul 1 1993 12:00AM