Better State-of-Good-Repair Indicators for the Transportation Performance Index

The goal of this project is to revise the Transportation Performance Index (TPI) to better capture the role state of good repair and safety play in transportation infrastructure performance. To accomplish this goal, objectives will be addressed including the exploration of alternative indicators for state of good repair that go beyond roughness and bridge integrity, alternative indicators for safety focusing on fundamental improvements, and the relationship between the new TPI and economic health. The project will also weigh the indicators to capture state of good repair and safety as attributes of performance, compute the TPI for 2010 and 2011 using the original and new methods, and develop a relationship between the original and new methods. The end result is a revised TPI that can be used to assess the economic impact of maintaining the physical infrastructure in a state of good repair and safety improvements. In turn the TPI can be used to evaluate alternative infrastructure repair and improvement policies.


  • English


  • Status: Completed
  • Funding: $49847.00
  • Contract Numbers:



  • Sponsor Organizations:

    Center for Advanced Infrastructure and Transportation

    Rutgers University
    100 Brett Rd
    Piscataway, NJ  United States  08854-8058

    Cambridge Systematics, Incorporated

    150 Cambridge Park Drive, Suite 4000
    Cambridge, MA  United States  02140-2369
  • Project Managers:

    Szary, Pat

    Miller, Deb

  • Performing Organizations:

    Delaware Center for Transportation

    University of Delaware
    Newark, DE  United States  19716
  • Principal Investigators:

    McNeil, Sue

  • Start Date: 20120901
  • Expected Completion Date: 0
  • Actual Completion Date: 20140131
  • Source Data: RiP Project 32666

Subject/Index Terms

Filing Info

  • Accession Number: 01537327
  • Record Type: Research project
  • Source Agency: Center for Advanced Infrastructure and Transportation
  • Contract Numbers: DTRT12-G-UTC16, CAIT-UTC-008
  • Files: UTC, RiP
  • Created Date: Sep 12 2014 1:00AM