Defects of railway traffic control devices on a selected railway route

The article discusses the problem of the safety of rail Traffic Control Devices (TCD) in the process of exploitation.Particularly the article presents an analysis of failures of components of railway traffic control devices (TCD) during 12 months throughout Poland and an assessment of the impact of external factors.This article creates the basis of knowledge for modeling the system of station setting devices.the specific results include, among others, an analysis by season and time of occurrence, as well as by meteorological phenomena.The analysis used, among others, such parameters as devastation and theft as well as strictly operational factors.The existence of a relationship between the above factors and the time period of their occurrence was confirmed.