Freeway Performance Measurement System (PeMS), Version 3 Phase II

This report discusses four tasks associated with this continuing Freeway Performance Measurement System (PeMS) project. In task 1, the researchers quantified the reduction in delay from optimum freeway operations by developing and implementing an algorithm that quantifies potential travel time reduction. Task 2 involved developing an algorithm for travel time predictions for Los Angeles, and releasing these estimates to the public through the PeMS website. Task 3 involved training California Dept. of Transportation (Caltrans) staff in using the PeMS, while the fourth task involved improving system robustness and maintenance.

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  • Supplemental Notes:
    • Publication Date: April 2004. California PATH Program, Institute of Transportation Studies University of California, Berkeley CA. The Appendix comprises three separate papers: Causes and Cures of Highway Congestion (Chen, Jia, Varaiya); Creating Transportation System Intelligence (Varaiya); A Simple and Effective Method for Predicting Travel Times on Freeways (Rice, van Zwet); Freeway Performance Measurement System (PeMS): an Operational Analysis Tool (Choe, Skabardonis, Varaiya)
  • Corporate Authors:

    University of California, Berkeley

    Berkeley, CA  United States  94720-1720

    University of California, Berkeley

    Department of Electrical Engineering and Computer Sciences
    Berkeley, CA  United States  94720

    University of California, Berkeley

    California PATH Program, Institute of Transportation Studies
    Richmond Field Station, 1357 South 46th Street
    Richmond, CA  United States  94804-4648

    California Department of Transportation

    1120 N Street
    Sacramento, CA  United States  95814
  • Authors:
    • Varaiya, P P
  • Publication Date: 2004

Media Info

  • Media Type: Digital/other
  • Pagination: 1 v. (various pagings)
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01001621
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Report/Paper Numbers: UCB-ITS-PRR-2004-9
  • Files: CALTRANS, TRIS, STATEDOT
  • Created Date: Jul 7 2005 12:00AM