▁within ▁Fu ku oka . ▁The ▁line ' s ▁color ▁on ▁maps ▁is ▁green . ▁Official ly , ▁the ▁line ▁is ▁called ▁. ▁Like ▁other ▁Fu ku oka ▁City ▁Sub way ▁lines , ▁stations ▁are ▁equ ipped ▁with ▁automatic ▁platform ▁gates , ▁and ▁trains ▁are ▁automatically ▁operated ▁by ▁A TO ▁system . ▁ ▁This ▁is ▁the ▁fourth ▁linear ▁motor ▁sub way ▁line ▁to ▁be ▁built ▁in ▁Japan , ▁opening ▁on ▁ 3 ▁February ▁ 2 0 0 5 . ▁The ▁Nan ak uma ▁Line ▁was ▁originally ▁conce ived ▁in ▁the ▁ 1 9 6 0 s ▁to ▁provide ▁access ▁to ▁Nak am ura ▁G ak uen ▁University ▁and ▁Fu ku oka ▁University , ▁and ▁in ▁ 1 9 7 5 ▁it ▁was ▁planned ▁to ▁run ▁from ▁Ten jin - Min ami ▁Station ▁to ▁J ō nan ▁Station ▁as ▁a ▁linear - mot ored ▁sub way , ▁but ▁the ▁plan ▁was ▁subsequently ▁am ended ▁for ▁the ▁line ▁to ▁end ▁at ▁Hash im oto ▁Station . ▁ ▁The ▁line ▁links ▁the ▁Central ▁business ▁district ▁and ▁the ▁south western ▁part ▁of ▁the ▁city , ▁which ▁did ▁not ▁have ▁a ▁railway ▁transport . ▁ ▁Const ruction ▁on ▁a ▁ ▁extension ▁from ▁Ten jin - Min ami ▁to ▁H ak ata ▁station ▁via ▁Canal ▁City ▁received ▁its ▁final ▁planning ▁permissions ▁in ▁ 2 0 1 4 , ▁and ▁was ▁initially ▁expected ▁to ▁be ▁completed ▁by ▁ 2 0 2 0 . ▁ ▁St ations ▁ ▁See ▁also ▁List ▁of ▁railway ▁lines ▁in ▁Japan ▁ ▁References ▁ ▁External ▁links