▁serving ▁n ort he astern ▁G ye ong gi ▁Province ▁in ▁South ▁Korea . ▁The ▁line ▁is ▁operated ▁by ▁Kor ail . ▁The ▁name ▁of ▁the ▁line ▁came ▁from ▁G ye ong se ong ▁( Se oul ) ▁and ▁W ons an , ▁the ▁original ▁termin us ▁of ▁the ▁line , ▁in ▁what ▁is ▁now ▁North ▁Korea . ▁ ▁History ▁For ▁the ▁original ▁line ' s ▁history ▁and ▁other ▁information ▁prior ▁to ▁ 1 9 4 5 , ▁see ▁G ye ong won ▁Line ▁( 1 9 1 1 – 1 9 4 5 ) ▁ ▁One ▁of ▁the ▁first ▁construction ▁projects ▁undert aken ▁by ▁the ▁Railway ▁Bureau ▁of ▁the ▁Government ▁General ▁of ▁Korea ▁was ▁for ▁an ▁east − west ▁tr unk ▁line ▁to ▁connect ▁G ye ong se ong ▁to ▁the ▁important ▁port ▁of ▁W ons an . ▁The ▁Ch osen ▁Government ▁Railway ▁( S ent ets u ) ▁opened ▁the ▁line ▁in ▁several ▁stages ▁between ▁ 1 9 1 1 ▁and ▁ 1 9 1 4 . ▁The ▁first ▁section ▁of ▁main line ▁to ▁be ▁elect r ified ▁by ▁Sent ets u ▁was ▁also ▁along ▁the ▁G ye ong won ▁Line , ▁with ▁the ▁Pok ky e − G os an ▁section ▁being ▁energ ised ▁on ▁ 2 7 ▁March ▁ 1 9 4 4 , ▁as ▁part ▁of ▁a ▁plan ▁made ▁joint ly ▁with ▁the ▁South ▁Man ch uria ▁Railway ▁for ▁an ▁elect r ified ▁railway ▁all ▁the ▁way ▁from ▁Bus an ▁to ▁X in j ing , ▁capital ▁of