Seoul Metropolitan Rapid Transit has grown over 40 years to become one of the largest urban railway networks in the world, with 9 lines and over 300 stations serving over 7 million passengers daily. It is recognized globally for its innovations including mobile phone service, energy efficiency, and application of cutting-edge technologies like automated train control and real-time monitoring systems. The system focuses on providing a fast, safe, convenient, and culturally enriching experience for passengers.