Road Closures, Subway Skips, Bus Detours, and the Best Route to the VenueIf you are planning to attend the BTS concert at Gwanghwamun, checking transportation updates in advance is essential.On the concert day, the Gwanghwamun Square area will not operate like a normal weekend in Seoul.Large crowds are expected, and several traffic control measures will be in place, including major road closures..