The S-Bahn Berlin is a rapid transit system that serves the city of Berlin and its surrounding areas. It consists of several lines that connect key neighborhoods, making it an essential mode of transportation for both residents and visitors. The system is known for its efficiency and frequency, with trains running regularly throughout the day. Operated by S-Bahn Berlin GmbH, the network includes over 15 lines and more than 160 stations. It integrates seamlessly with other public transport options, such as U-Bahn (subway) and bus services, providing a comprehensive travel solution for navigating the city and its suburbs.