USING ARCHIVED DATA TO MEASURE OPERATIONAL BENEFITS OF ITS INVESTMENTS, VOLUME 1: RAMP METERS

The objective of this project is to use the existing data, surveillance and communications infrastructure (to the extent possible) to develop two case study evaluations using the Portland, Oregon metropolitan area as the testbed. This volume, Volume 1, addresses the Portland ramp metering system. At their most basic level, ramp meters are traffic signals located at on-ramps to control the flow of vehicles from the ramp onto the freeway. Ramp meters are currently present in more than 30 cities worldwide with more than 3,000 ramps being metered every day. Portland has an extensive advanced traffic management system, including 75 CCTV cameras, 18 variable message signs, an extensive fiber optics communications system, and 118 ramp meters, including approximately 436 inductive loop detectors. This report consists of 5 sections: (1) Introduction; (2) Data Validation; (3) Ramp Metering Analysis; (4) Case Study: Ramp Metering in Portland, Oregon; and (5) Discussion.

• 
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/5503
• Supplemental Notes:
  • This research was supported by a grant from the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  Portland State University

  Department of Civil and Environmental Engineering, P.O. Box 751
  Portland, OR  United States  97207-0751

  TransNow, Transportation Northwest

  University of Washington, Department of Civil Engineering
  129 More Hall, Box 352700
  Seattle, WA  United States  98195-2700

  Oregon Department of Transportation

  Transportation Building, Capitol and Center Streets
  Salem, OR  United States  97310

  Research and Special Programs Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Bertini, R
  • Rose, M W
  • El-Geneidy, Ahmed
  • Eder, A
  • Leal, M
  • Malik, S
  • Tantiyanugulchai, S
  • Yin, Tingting
• Publication Date: 2004-6

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 116 p.

Subject/Index Terms

• TRT Terms: Advanced traffic management systems; Benefits; Case studies; Data banks; Intelligent transportation systems; Loop detectors; Ramp metering
• Geographic Terms: Portland (Oregon)
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 00976010
• Record Type: Publication
• Report/Paper Numbers: TNW2004-01.1,, Final Report
• Contract Numbers: DTRS99-G-0010
• Files: NTL, TRIS, USDOT, STATEDOT
• Created Date: Jul 29 2004 12:00AM