Design of Safe Systems

摘要

This chapter deals with brief overview of Railway Signalling and Interlocking (RSI) systems and its characteristics, safety definition, safety integrity levels, methods of safety achievement, problems of safety data transmission and safety approval process. The main purpose of use of these systems is assurance of railway traffic safety that means prevention against railway accidents. There is rich experience with their design gained during more over than 150 years of their evolution. We believe that it can be good inspiration for other systems, for increasing their resilience in disaster conditions.