ASSESSING THE BENEFITS OF TRAVELER AND TRANSPORTATION INFORMATION SYSTEMS

The goal of advanced traveler information systems (ATIS) is to provide travelers with information that will facilitate their decisions concerning route choice, departure time, trip delay or elimination, and mode of transportation. The benefits of ATIS projects can be evaluated through field studies, simulation software, and surveys. An evaluation method called the ITS Deployment Analysis System (IDAS) is suggested for use by the Washington State Department of Transportation (WSDOT). IDAS is a sketch planning tool intended for screening and prioritizing all intelligent transportation systems (ITS) projects (not just ATIS projects). The software evaluates a number of benefits. These are determined by changes attributable to the deployment of ITS in vehicle miles traveled (VMT), vehicle hours traveled (VHT), volume-capacity (v/c) ratios, and vehicle speeds throughout a given network. The IDAS evaluation depends on a number of assumptions that affect the calculations of costs and benefits. The IDAS developers recommend that these assumptions be inspected by local agencies and adjusted to better represent local conditions. The assumptions about the impacts on VMT, VHT, v/c ratios, and vehicle speed are particularly important. Consequently, suggestions are made within this report for adjustments that WSDOT should make to these default values. These values will allow the WSDOT to successfully employ IDAS for ATIS evaluation.

• Record URL:
  http://www.wsdot.wa.gov/research/reports/fullreports/597.1.pdf
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/37929
• Corporate Authors:

  Washington State Transportation Center

  University of Washington, 1107 NE 45th Street, Suite 535
  Seattle, WA  United States  98105

  Washington State Department of Transportation

  Transportation Building, 310 Maple Park Avenue SE, P.O. Box 47300
  Olympia, WA  United States  98504-7300

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Kristof, T
  • Lowry, M
  • Rutherford, G S
• Publication Date: 2005-3

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; References; Tables;
• Pagination: 69 p.

Subject/Index Terms

• TRT Terms: Advanced traveler information systems; Benefits; Evaluation and assessment; Intelligent transportation systems; Operating speed; Sketch planning; Software; Vehicle miles of travel
• Identifier Terms: ITS Deployment Analysis System
• Uncontrolled Terms: Vehicle hours traveled; Volume capacity ratio
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00989192
• Record Type: Publication
• Report/Paper Numbers: WA-RD 597.1,, Final Research Report
• Contract Numbers: Agreement T2695, Task 29
• Files: NTL, TRIS, USDOT, STATEDOT
• Created Date: Apr 12 2005 12:00AM