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Marginal railway track renewal costs: a survival data approach

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Author Info

  • Andersson, Mats

    ()
    (Swedish Transport Agency)

  • Björklund, Gunilla

    ()
    (VTI)

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    Abstract

    In this paper, renewal costs for railway tracks are investigated using survival analysis. The purpose is to derive the effect from increased traffic volumes on rail renewal cycle lengths and to calculate associated marginal costs. A flow sample of censored data containing almost 1 300 observations on the Swedish main railway network is used. We specify Weibull accelerated failure time regression models, and estimate deterioration elasticities for total tonnage as well as for passenger and freight tonnages separately. Marginal costs are calculated as a change in present values of renewal costs from premature renewal following increased traffic volumes. The marginal cost for aggregate freight and passenger tonnage is estimated to approximately SEK 0.002 per gross ton kilometre.

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    File URL: http://www.transportportal.se/SWoPEc/CTS2012-29.pdf
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    Bibliographic Info

    Paper provided by CTS - Centre for Transport Studies Stockholm (KTH and VTI) in its series Working papers in Transport Economics with number 2012:29.

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    Length: 30 pages
    Date of creation: 21 Dec 2012
    Date of revision:
    Handle: RePEc:hhs:ctswps:2012_029

    Contact details of provider:
    Postal: Centrum för Transportstudier (CTS), Teknikringen 10, 100 44 Stockholm, Sweden
    Web page: http://www.kth.se/abe/om_skolan/organisation/centra/cts

    Related research

    Keywords: Railway; Renewal; Survival analysis; Marginal costs;

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    Cited by:
    1. Andersson, Mats & Smith, Andrew & Wikberg, Åsa & Wheat, Phill, 2012. "Estimating the marginal cost of railway track renewals using corner solution models," Transportation Research Part A: Policy and Practice, Elsevier, vol. 46(6), pages 954-964.

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