ACCOUNTING FOR INDUCED TRAVEL IN EVALUATION OF URBAN HIGHWAY EXPANSION

This paper demonstrates application of the principles of economic analysis to evaluate highway capacity expansion in an urban setting, using a sketch-planning model called "Spreadsheet Model for Induced Travel Estimation" (SMITE). The application takes into account new travel that may be induced by highway expansion over and above that which is simply diverted from other regional highways. The authors demonstrate how the effects of induced travel can be incorporated into the evaluation process at a sketch planning level of analysis, especially in cases where four-step urban travel models are either unavailable or are unable to forecast the full induced demand effects, such as in small and medium-sized urban areas. The methodology and the SMITE spreadsheet can be used to provide useful information to assist policy makers in evaluating proposals for specific additions to highway capacity for corridor studies. The spreadsheet will soon be made available at: www.ota.fhwa.dot.gov/steam.

• Record URL:
  https://doi.org/10.21949/1403373
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/12722
• Supplemental Notes:
  • Conference proceedings available only on CD-ROM.
• Corporate Authors:

  Washington State Department of Transportation

  Transportation Building, 310 Maple Park Avenue SE, P.O. Box 47300
  Olympia, WA  United States  98504-7300
• Authors:
  • DeCorla-Souza, P
  • Cohen, H
• Conference:
  • Sixth National Conference on Transportation Planning for Small and Medium-Sized Communities
  • Location: Spokane Washington, United States
  • Date: 1998-9-16 to 1998-9-18
• Publication Date: 1999

Language

• English

Media Info

• Pagination: 12p
• Monograph Title: SIXTH NATIONAL CONFERENCE ON TRANSPORTATION PLANNING FOR SMALL AND MEDIUM SIZED COMMUNITIES, SEPTEMBER 16-18, 1998, SPOKANE, WASHINGTON

Subject/Index Terms

• TRT Terms: Economic analysis; Evaluation; Expansion; Highway capacity; Medium sized cities; Small cities; Spreadsheets; Traffic models; Travel; Urban areas
• Uncontrolled Terms: Induced travel
• Subject Areas: Economics; Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00780098
• Record Type: Publication
• Files: NTL, TRIS, STATEDOT
• Created Date: Dec 7 1999 12:00AM