Change in the frequency occurrence incidence resulting from the railway line modernization project implementation

Abstract

The modernization of railway lines represents a very important part of the railway infrastructure development. Railway line reconstruction and revitalization projects bring a number of positive impacts - benefits despite the negative impacts in the form of temporary traffic restriction on the lines or common relatively high investment costs. While the benefits in the form of operating cost savings, transport time reduction or negative environmental impact mitigation are usually included in the economic analysis evaluating the project economic efficiency, benefits in the form of increased railway safety and reliability usually closely related to these modernisation projects are not currently included in the economic analysis. The paper focuses on the presentation of a partial output of a research project, which addresses the evaluation of increasing the railway line safety and reliability due to the implementation of railway infrastructure modernization projects. In 2020, a paper presented at the 20th SGEM Green conference in Vienna addressed the impacts of railway line reconstruction implementation on the frequency of occurrence incidence on the railway network. 33 representative projects implemented in the Czech Republic were selected for impact assessment. The subject of this article is to analyse in more detail the impact of the implementation of these projects, especially in relation to occurrence (OC) classification according to the Czech Railway Administration (SŽ) s.o. methodology.