This research project studied the impact of electromagnetic disturbances on railway signaling systems. It identified the potential risks in the common operation of equipment. This project required a multidisciplinary approach and a high degree of experience in topics, such as the railway environment, signaling systems, telecommunications and electromagnetic compatibility. The main objective of this project was to establish the link between the threats caused by electromagnetic interference and the quality of service (QoS) or key performance indicators (KPI) of a Railway Control and Signaling System (RCSS).