, ▁and / or ▁switch ▁directions ▁without ▁having ▁to ▁pay ▁another ▁fare . ▁Un like ▁the ▁other ▁Gre ater ▁Toronto ▁trans it ▁ag encies , ▁the ▁time - based ▁transfer ▁does ▁not ▁apply ▁to ▁customers ▁pay ing ▁by ▁c ash , ▁tick ets ▁or ▁tokens ; ▁the ▁rules ▁for ▁their ▁paper - based ▁trans fers ▁remain ▁un changed : ▁such ▁trans fers ▁are ▁good ▁for ▁a ▁continuous ▁one - way ▁trip ▁with ▁no ▁stop o vers ▁or ▁back track ing . ▁ ▁York ▁Region ▁Trans it : ▁Y RT ▁Express ▁fare ▁supp lement s ▁are ▁automatically ▁dedu cted . ▁ ▁Y RT ▁Express ▁far es ▁cannot ▁be ▁ass essed ▁on ▁their ▁own ; ▁passengers ▁using ▁the ▁G TA ▁Week ly ▁Pass ▁thus ▁cannot ▁use ▁the ▁Pr esto ▁card ▁for ▁this ▁fare ▁upgrade . ▁ ▁Y RT ▁far es ▁are ▁ass essed ▁when ▁board ing ▁Z ü m ▁bus es ▁in ▁York ▁Region ▁due ▁to ▁fare ▁integration ▁with ▁V iva ▁Orange , ▁even ▁though ▁both ▁Y RT ▁and ▁Br am pton ▁Trans it ▁fare ▁media ▁are ▁accepted ▁for ▁Z ü m ▁bus es ▁in ▁York ▁Region . ▁Pass engers ▁holding ▁a ▁Br am pton ▁Trans it ▁period ▁pass ▁will ▁not ▁be ▁ass essed ▁a ▁fare ▁when ▁board ing ▁a ▁Z ü m ▁bus ▁in ▁York ▁Region , ▁but ▁will ▁be ▁ass essed ▁a ▁fare ▁for ▁board ing ▁V iva ▁Orange . ▁As ▁V iva ▁Orange ▁is ▁on ▁a ▁proof - of - payment ▁system ▁while ▁Z ü m ▁bus es ▁are ▁pay - as