 It is usually noted on station signs and on-board announcements that the station serves (the Supreme) Court and Public Prosecutor's Office.The station is a transfer point between the circular Line 2 (the busiest line on the network) which runs east–west at this point, and the north-south Line 3.The station is an extremely busy transfer point for those travelling between central Seoul and Gangnam district, Teheran Valley and the COEX/KWTC complex.