▁finally ▁bought ▁the ▁rights ▁of ▁the ▁tram way ▁company . ▁ ▁In ▁ 1 9 2 9 , ▁the ▁Sp lo š na ▁mal o ž ele z ni š ka ▁dru ž ba ▁changed ▁its ▁name ▁to ▁Ele kt ri č na ▁c est na ▁ž ele zn ica ▁() ▁and ▁since ▁ 1 9 3 0 ▁the ▁city ▁modern ised ▁stock ▁and ▁tracks . ▁With ▁purch asing ▁new ▁and ▁used ▁vehicles ▁the ▁rolling ▁stock ▁by ▁ 1 9 4 0 ▁consisted ▁of ▁ 5 2 ▁units . ▁Tr am way ▁lines ▁were ▁connecting ▁city ▁centre ▁with ▁the ▁sub ur bs . ▁Work sh ops ▁and ▁gar ages ▁were ▁moved ▁to ▁the ▁street ▁Cel ov š ka ▁c esta ▁in ▁the ▁sub urb ▁of ▁Š iš ka . ▁ ▁T rol ley bus ▁era ▁( 1 9 5 1 – 1 9 7 1 ) ▁ ▁After ▁the ▁Second ▁world ▁war , ▁L jub lj ana ▁quickly ▁spread ▁and ▁the ▁tram way ▁could ▁no ▁longer ▁with stand ▁the ▁growing ▁transport ation ▁needs ▁in ▁the ▁city . ▁When ▁cars ▁started ▁to ▁spread ▁among ▁general ▁population , ▁it ▁was ▁an ▁additional ▁reason ▁for ▁different ▁arrang ements ▁of ▁public ▁transport ▁that ▁would ▁pre jud ice ▁less ▁street ▁surface ▁in ▁L jub lj ana . ▁In ▁May ▁ 1 9 5 3 ▁the ▁M est ni ▁l jud ski ▁od bor ▁L jub lj ana ▁() ▁set ▁up ▁a ▁commission ▁that ▁prepared ▁a ▁proposal ▁on ▁ex ch anging ▁tram ways ▁with ▁t rol ley bus ▁and