, ▁largely ▁due ▁to ▁the ▁significant ▁destruction ▁of ▁the ▁city ▁by ▁US / UN ▁bomb ing ▁attacks . ▁The ▁remaining ▁two ▁in ▁Se oul ▁and ▁Bus an ▁surv ived ▁the ▁war ▁but ▁were ▁eventually ▁dis cont in ued ▁too ▁when ▁motor c ars ▁became ▁more ▁common ▁and ▁a ▁larger ▁means ▁of ▁transport ▁in ▁South ▁Korea ▁in ▁ 1 9 6 8 , ▁thus ▁leaving ▁no ▁tram way ▁networks ▁on ▁the ▁pen ins ula . ▁ ▁Un like ▁South ▁Korea , ▁personal ▁ownership ▁of ▁autom ob iles ▁in ▁North ▁Korea ▁is ▁very ▁rare . ▁North ▁Kore ans , ▁especially ▁those ▁living ▁in ▁Py ong y ang ▁and ▁other ▁major ▁cities , ▁rely ▁mainly ▁on ▁government - run ▁public ▁transport . ▁Also , ▁as ▁the ▁limited ▁oil ▁supply ▁imported ▁into ▁the ▁country ▁is ▁mostly ▁allocated ▁to ▁its ▁military ▁( es pecially ▁exempl ified ▁under ▁Kim ▁J ong - il ' s ▁Song un ▁( Mil it ary - First ) ▁policy ), ▁private ▁vehicle ▁ownership ▁is ▁virt ually ▁non - ex istent . ▁In ▁Py ong y ang , ▁there ▁are ▁elect r ically - power ed ▁t rol ley b uses ▁( the ▁Py ong y ang ▁t rol ley bus ▁system ) ▁and ▁sub ways ▁( the ▁Py ong y ang ▁Metro ), ▁with ▁these ▁two ▁serving ▁as ▁its ▁main ▁forms ▁of ▁public ▁transport . ▁However , ▁as ▁t rol ley bus ▁lines ▁became ▁gradually ▁over c row ded , ▁the ▁city ▁decided ▁to ▁re - open ▁tram - lines . ▁The ▁first