Marginal railway track renewal costs: a survival data approach

Mats Andersson () and Gunilla Björklund ()
Additional contact information
Mats Andersson: Swedish Transport Agency
Gunilla Björklund: VTI, Postal: Centrum för Transportstudier (CTS), Teknikringen 10, 100 44 Stockholm, Sweden

No 2012:29, Working papers in Transport Economics from CTS - Centre for Transport Studies Stockholm (KTH and VTI)

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.

Keywords: Railway; Renewal; Survival analysis; Marginal costs (search for similar items in EconPapers)
JEL-codes: C41 H54 L92 R48 (search for similar items in EconPapers)
Pages: 30 pages
Date: 2012-12-21
New Economics Papers: this item is included in nep-tre
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:hhs:ctswps:2012_029

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