STP1121: Development of Optimal Long-Term Network Strategies Using Remaining Service Life

    Kuo, W-H
    Michigan Department of Transportation, Materials and Technology Division, Lansing, Michigan

    Novak, EC
    Michigan Department of Transportation, Materials and Technology Division, Lansing, Michigan

    Baladi, GY
    Michigan State University, East Lansing, Michigan

    Pages: 18    Published: Jan 1991


    Abstract

    State Highway Agencies (SHA) develop Maintenance, Rehabilitation and Reconstruction (MR&R) programs every year. These programs may be optimal under some criteria. However, the impacts of these programs on the long-term network condition levels and funding needs are generally unknown. This is because the element of controlling long-term network condition and funding levels is not incorporated into the program development process. This paper presents a Strategy Analysis that uses a Remaining Service Life (RSL) concept to estimate long-term network conditions and funding needs. The characteristics of the strategy analysis are then used to develop optimal long-term network strategies. The procedures for incorporating optimal long-term network strategies into a program development process to develop optimal MR&R programs and at the same time control future network condition and funding levels are also presented.

    This strategy analysis method is based on RSL which is obtained from pavement performance curves of condition measurements such as distress index, PSR, ride quality, rut depth,…, etc. It is a generic method because it can be used by any SHA that has established pavement performance curves. The linkage between project and network levels for developing MR&R programs are also discussed.

    Keywords:

    design service life (DSL), remaining service life (RSL), strategy analysis, MR&R strategy, preservation strategy, long-term network strategy


    Paper ID: STP17819S

    Committee/Subcommittee: E17.32

    DOI: 10.1520/STP17819S


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