Rail security refers to the measures and protocols implemented to protect rail systems, including trains, stations, and infrastructure, from threats such as terrorism, vandalism, and accidents. This involves surveillance, screening of passengers and cargo, and coordination with law enforcement agencies to ensure the safety of travelers and goods. Effective rail security also includes emergency response plans and training for staff to handle potential incidents. Technologies like CCTV cameras, metal detectors, and biometric systems are often used to enhance security. Overall, maintaining a secure rail environment is essential for public safety and the smooth operation of transportation services.