Accounting for network effects in railway asset management

Akitoshi Furuya, Samer Madanat

    Research output: Contribution to journalArticle

    Abstract

    System-level infrastructure management involves determining optimal maintenance, rehabilitation, and reconstruction activities for a system of facilities over a planning horizon to maximize the level of service subject to system constraints. In railway networks, different types of facilities (such as tracks, and bridges) comprise the system, and maintenance of one facility may affect the maintenance of other facilities, both economically and functionally. Therefore, when developing an asset management system for railway networks, it is essential to take into account heterogeneity and interdependency in the network. In this paper, a two-stage, bottom-up methodology is formulated to capture these interdependencies and heterogeneities in railroad infrastructure management. Numerical experiments are presented to examine the effects of economic and functional interdependencies on network optimization and to demonstrate the validity of the proposed model. The results show that accounting for heterogeneity and interdependencies at the system level can greatly influence the choice of activities and the estimated life-cycle cost.

    Original languageEnglish (US)
    Pages (from-to)92-100
    Number of pages9
    JournalJournal of Transportation Engineering
    Volume139
    Issue number1
    DOIs
    StatePublished - Jan 1 2013

    Fingerprint

    Asset management
    German Federal Railways
    assets
    management
    Reconstruction (structural)
    Railroads
    Patient rehabilitation
    infrastructure
    Life cycle
    railroad
    Planning
    life cycle
    Economics
    rehabilitation
    reconstruction
    Costs
    planning
    Experiments
    experiment
    methodology

    Keywords

    • Economic factors
    • Heterogeneity
    • Infrastructure
    • Interactive systems
    • Maintenance
    • Optimization
    • Rail transportation
    • System management

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Transportation

    Cite this

    Accounting for network effects in railway asset management. / Furuya, Akitoshi; Madanat, Samer.

    In: Journal of Transportation Engineering, Vol. 139, No. 1, 01.01.2013, p. 92-100.

    Research output: Contribution to journalArticle

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