▁Az am ino ▁every ▁ 3 0 ▁minutes . ▁ ▁Although ▁rapid ▁operations ▁had ▁not ▁been ▁carried ▁out ▁for ▁more ▁than ▁ 4 0 ▁years ▁since ▁the ▁line ' s ▁ 1 9 7 2 ▁opening , ▁it ▁became ▁clear ▁that ▁the ▁b ureau ▁was ▁considering ▁the ▁introduction ▁of ▁rapid ▁services ▁from ▁ 2 0 1 4 . ▁Rap id ▁services ▁began ▁operating ▁on ▁July ▁ 1 8 , ▁ 2 0 1 5 . ▁ ▁Local ▁During ▁the ▁day time , ▁there ▁are ▁two ▁trains ▁that ▁direct ▁the ▁Sh on and ai ▁station - Az am ino ▁station ▁between ▁ 3 0 ▁minutes , ▁Od or iba ▁Station - Az am ino ▁station ▁and ▁the ▁Sh on and ai ▁station - N ipp a ▁station , ▁each ▁of ▁which ▁is ▁operated ▁by ▁one . ▁ ▁About ▁the ▁interval ▁train ▁to ▁the ▁Od or iba ▁station ▁is ▁usually ▁the ▁meeting ▁of ▁the ▁fast ▁at ▁the ▁K amin ag aya ▁station , ▁usually ▁at ▁the ▁N ipp a ▁station ▁departure ▁and ▁take ▁the ▁rapid ▁connection ▁with ▁the ▁N ipp a ▁station ▁of ▁the ▁first ▁train ▁terminal . ▁There ▁are ▁a ▁lot ▁of ▁Az am ino ▁trains ▁which ▁depart ▁from ▁the ▁N ipp a ▁station ▁and ▁K amin ag aya ▁station ▁with ▁the ▁gar age ▁mainly ▁in ▁the ▁early ▁morning ▁and ▁mid night ▁although ▁the ▁whole ▁train ▁becomes ▁usual ▁time ▁zone ▁ex cluding ▁day time , ▁and ▁many ▁trains ▁drive ▁directly ▁between ▁the ▁station - Sh on and ai ▁station . ▁ ▁Moreover , ▁there