▁line ▁was ▁finally ▁built ▁and ▁opened ▁in ▁ 1 9 8 9 . ▁ ▁In ▁the ▁late ▁ 1 9 9 0 s , ▁the ▁city ▁had ▁frequent ▁power ▁out ages ▁due ▁to ▁decre pit ▁power ▁stations ▁and ▁the ▁lack ▁of ▁resources . ▁The ▁tram ▁lines ▁also ▁suffered ▁from ▁out ages , ▁but ▁the ▁situation ▁has ▁improved ▁in ▁recent ▁years . ▁In ▁ 2 0 0 3 , ▁however , ▁the ▁section ▁of ▁Line ▁ 1 ▁between ▁P ' y ŏ ng y ang - y ŏ k ▁and ▁Song sin ▁was ▁closed , ▁as ▁the ▁bridge ▁over ▁Ta ed ong ▁River ▁started ▁to ▁decay . ▁ ▁In ▁ 2 0 0 8 , ▁the ▁City ▁Transport ation ▁Company ▁of ▁Prag ue ▁sold ▁ 2 0 ▁used ▁T 3 s ▁to ▁Py ong y ang ▁Public ▁Transport ation ▁Enter prise ▁together ▁with ▁a ▁ship ment ▁of ▁tram - rails . ▁These ▁tr ams ▁were ▁made ▁in ▁the ▁late ▁ 1 9 7 0 s ▁and ▁the ▁early ▁ 1 9 8 0 s . ▁According ▁to ▁O nd ř ej ▁Pe čen ý , ▁a ▁sp okes man ▁for ▁the ▁City ▁Transport ation ▁Company ▁of ▁Prag ue , ▁these ▁tr ams ▁are ▁in ▁very ▁good ▁condition , ▁and ▁can ▁run ▁for ▁at ▁least ▁two ▁years ▁without ▁the ▁need ▁of ▁a ▁service . ▁ ▁The ▁tram ▁cars ▁were ▁made ▁by ▁T atra , ▁a ▁Czech oslov ak ▁company , ▁during ▁that ▁nation ' s ▁social ist ▁era . ▁Vari ous ▁types ▁are ▁used ,