An audit released by the State Government in NUMBER@1 showed over NUMBER@2 in NUMBER@3 -LRB- NUMBER@4 % -RRB- of the machines at train stations did not work , and NUMBER@5 % of mobile equipment in buses and trams was non-operational .

An study released by the State Government in NUMBER@1 showed over NUMBER@2 in NUMBER@3 -LRB- NUMBER@4 % -RRB- of the machines at train stations did not work , and NUMBER@5 % of mobile equipment in buses and trams was non-operational . Following these improvements , a NUMBER@6 audit showed an increase in availability of machines to NUMBER@7 % at train stations , and NUMBER@8 % on buses and trams .
