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Szukana fraza: [Abstrakt = "Most of the renewal and modernization works on the railway lines require temporary track closures \(possessions\), which may cause traffic disruptions. This paper presents an analysis of the track closures data on the polish railway network managed by PKP PLK S.A. from 2013 to 2015. An aim of this study is to identify the basic characteristics of track closures across the national railway network, which will allow targeting better future research on the minimization of negative effect of carrying out railway construction works on the rail traffic. The study included such features of track closures as\: variation over time, the reasons for introducing, type \(planned or unplanned\), duration. The analysis revealed that renewal and modernization works were responsible for 53% of all planned and 26% of all unplanned closures. The vast majority of track possessions were twenty\-four\-hour and have been lasted for more than a week."]

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