▁ 1 6 ▁mid ib uses . ▁ ▁Pay ment ▁ ▁Since ▁the ▁introduction ▁of ▁the ▁tram , ▁tick ets ▁were ▁sold ▁for ▁a ▁single ▁ride . ▁They ▁remained ▁in ▁use ▁until ▁the ▁end ▁of ▁ 1 9 7 4 , ▁when ▁they ▁introduced ▁a ▁modern ised ▁payment ▁service . ▁Tok ens ▁and ▁month ly ▁passes ▁were ▁introduced . ▁Enter ing ▁the ▁vehicle ▁was ▁possible ▁only ▁at ▁the ▁back ▁door , ▁where ▁there ▁was ▁a ▁conduct or , ▁entry ▁through ▁the ▁first ▁door ▁was ▁only ▁for ▁passengers ▁with ▁month ly ▁passes . ▁With ▁the ▁abol ition ▁of ▁the ▁conduct or ▁position , ▁passenger ▁were ▁allowed ▁to ▁enter ▁only ▁at ▁the ▁first ▁door , ▁where ▁the ▁driver ▁o vers aw ▁the ▁payment . ▁Initial ly , ▁the ▁tokens ▁were ▁made ▁from ▁paper , ▁then ▁the ▁most ▁recogn izable ▁were ▁metal ▁tokens ▁with ▁a ▁hole , ▁there after ▁pl astic ▁tokens ▁replaced ▁them , ▁also ▁different ▁colours ▁and ▁shapes ▁were ▁available ▁through ▁time . ▁Tok ens ▁were ▁abol ished ▁on ▁January ▁ 1 , ▁ 2 0 1 0 ▁and ▁c ash ▁payment ▁on ▁May ▁ 1 0 , ▁ 2 0 1 0 . ▁ ▁Today ▁payment ▁is ▁only ▁possible ▁by ▁U rb ana ▁card ▁or ▁with ▁mobile ▁phone . ▁ ▁U rb ana ▁▁ ▁Single ▁ticket ▁is ▁available ▁for ▁un limited ▁number ▁of ▁trans fers ▁within ▁ 9 0 ▁minutes , ▁or ▁month ly ▁passes ▁of ▁different ▁categories . ▁ ▁See ▁also ▁▁ ▁City ▁bus ▁service ▁no . ▁ 1 ▁( L jub