Abstract
The article reviews the history and the direction of development for railway CCTV (Closed-Circuit TeleVision) systems. The authors described the CCTV system at PKP Polskie Linie Kolejowe S.A. and the associated network and server infrastructure. The authors proposed an operational model for a centralized CCTV system that assumes states of partial fitness, in accordance with the regulations of the national railway infrastructure administrator. The aim of the paper is to review, analyse, and evaluate the operational reliability of railroad video monitoring systems in relation to the assumptions of the national railroad infrastructure manager using an operational model. A unified system structure is presented in the article. The model was used as a base to calculate the probabilities for the system while staying in the assumed states. Calculations showed that a centralized CCTV system is characterized by high reliability and satisfies the expectations of PKP Polskie Linie Kolejowe S.A. in this respect. The obtained result of 99.88% probability of leaving the analysed video surveillance system in a fully operational condition within a year indicates a high level of security of the applied solutions in such a large system. The analysed system is one of the largest such solutions designed in the European Union and the largest in Poland, which is an important contribution to the development and implementation of such extensive video surveillance systems in the future. The research question is whether the extensive centralized railway CCTV systems will meet the requirements of PKP Polskie Linie Kolejowe S.A.
Highlights
Introduction and Analysis of the IssueUntil 2017, only 170 stations and stops out of 2563 active facilities managed by PKPPolskie Linie Kolejowe S.A. (Polish railway infrastructure administrator) had site Circuit Television (CCTV), with as many as 100 being obsolete analogue systems
The company lacked regulations on CCTV systems dedicated to passenger infrastructure, which is why newly built systems were non-uniform and/or functionally poor
Local Control Centres (LCC) or command signal boxes, with viewing conducted locally and occasionally by employees dealing with railway traffic management, which resulted in a low effectiveness relative to the assumed objectives, i.e., protection of people and property
Summary
Introduction and Analysis of the IssueUntil 2017, only 170 stations and stops out of 2563 active facilities managed by PKPPolskie Linie Kolejowe S.A. (Polish railway infrastructure administrator) had site CCTV, with as many as 100 being obsolete analogue systems. (Polish railway infrastructure administrator) had site CCTV, with as many as 100 being obsolete analogue systems. The company lacked regulations on CCTV systems dedicated to passenger infrastructure, which is why newly built systems were non-uniform and/or functionally poor. Local Control Centres (LCC) or command signal boxes, with viewing conducted locally and occasionally by employees dealing with railway traffic management, which resulted in a low effectiveness relative to the assumed objectives, i.e., protection of people and property. The previous lack of widespread application of CCTV systems contributed to the low feeling of passenger safety. The existing scientific studies indicated the significant role of CCTV systems in preventing crime at local railway facilities [2]
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