The busiest subway station in the Seoul Metro system in terms of daily users was Jamsil Station on Line Nos. 2 and 8, the main operator of the metro system for the nation's capital and parts of the surrounding cities said Thursday. According to the Seoul Metro, 155,229 people used the Jamsil Station between January and April of this year. The state-run company surveyed the ridership for each station, based on th.