on ▁Circ ular ▁Railway ▁that ▁serves ▁as ▁Yang on ' s ▁comm uter ▁rail . ▁ ▁Rail ▁lines ▁in ▁Lower ▁My an mar ▁ ▁Rail ▁lines ▁in ▁Upper ▁My an mar ▁ ▁Yang on ▁Circ ular ▁Railway ▁ ▁Yang on ▁Circ ular ▁Railway ▁is ▁a ▁▁ 3 9 - station ▁loop ▁system ▁that ▁connect s ▁Yang on ' s ▁dow nt own , ▁satellite ▁towns ▁and ▁sub urban ▁areas . ▁Ar ound ▁ 1 5 0 , 0 0 0 ▁people ▁use ▁the ▁approximately ▁ 3 0 0 ▁trains ▁that ▁run ▁around ▁the ▁loop ▁daily . ▁ ▁Pro posed ▁rapid ▁trans it ▁The ▁Yang on ▁Urban ▁Mass ▁Rap id ▁Trans it ▁is ▁due ▁to ▁begin ▁construction ▁in ▁ 2 0 2 2 , ▁to ▁be ▁complete ▁by ▁ 2 0 2 7 . ▁ ▁L ines ▁under ▁construction ▁The ▁following ▁four ▁lines ▁are ▁currently ▁under ▁construction : ▁▁▁▁ ▁Ky au ky i – S ink han – B am ow ▁with ▁a ▁distance ▁of ▁ ▁as ▁a ▁part ▁of ▁Kath a – B am ow ▁railway ▁project ▁to ▁allow ▁the ▁passengers ▁and ▁cargo ▁to ▁reach ▁B am ow ▁by ▁rails ▁rather ▁by ▁the ▁Ir raw addy ▁fl ot illa ▁service . ▁So ▁far , ▁the ▁opened ▁section ▁is ▁ ▁while ▁the ▁other ▁ ▁is ▁still ▁under ▁construction . ▁The ▁section ▁under ▁construction ▁is ▁the ▁Ky au k ky i ▁Bridge ▁across ▁A yar w addy ▁Bridge ▁at ▁S ink han – B am aw ▁( ). ▁Const ruction ▁started ▁ 1 6 ▁May