The Mugunghwa and KTX trains operate on the route from Sangdong to Samnangjin, with the KTX being the high-speed option. The KTX can reach speeds of up to 300 km/h, providing a quick journey, while the Mugunghwa, a slower service, typically operates at speeds ranging from 80 to 120 km/h. The travel time varies significantly, with the KTX offering a travel time of approximately 2 hours compared to the Mugunghwa, which takes around 3.5 hours. Both services offer comfortable seating, making it a pleasant journey.