▁There ▁are ▁seven ▁lines ▁operated ▁by ▁C PT M : ▁ ▁Line ▁ 7 ▁- ▁Ruby : ▁Form er ly ▁the ▁northern ▁part ▁of ▁the ▁old ▁São ▁Paulo ▁Railway , ▁Line ▁ 7 ▁connect s ▁the ▁Br ás ▁station ▁( week days ▁only , ▁on ▁week ends , ▁has ▁its ▁terminal ▁in ▁Lu z ) ▁dow nt own ▁to ▁the ▁city ▁of ▁Francisco ▁Mor ato , ▁crossing ▁all ▁of ▁the ▁north western ▁side ▁of ▁the ▁city . ▁An ▁oper ational ▁extension ▁connect s ▁Francisco ▁Mor ato ▁to ▁the ▁city ▁of ▁J und ia í . ▁This ▁is ▁the ▁longest ▁line ▁of ▁the ▁railway ▁system ▁in ▁São ▁Paulo . ▁Line ▁ 8 ▁- ▁Diam ond : ▁Form er ly ▁part ▁of ▁the ▁old ▁E str ada ▁de ▁Fer ro ▁Sor oc ab ana , ▁it ▁connect s ▁the ▁J ú lio ▁Pr est es ▁station ▁dow nt own ▁to ▁It ape vi , ▁going ▁across ▁the ▁western ▁side ▁of ▁the ▁city . ▁An ▁oper ational ▁extension ▁with ▁another ▁train ▁links ▁this ▁line ▁to ▁two ▁more ▁stations ▁in ▁It ape vi . ▁The ▁last ▁station ▁( Am ador ▁Buen o ) ▁is ▁placed ▁near ▁the ▁border ▁with ▁São ▁Ro que . ▁The ▁J ú lio ▁Pr est es ▁station ▁houses ▁the ▁State ▁of ▁the ▁Art ▁concert ▁hall ▁S ala ▁São ▁Paulo . ▁Line ▁ 9 ▁- ▁Emer ald : ▁Is ▁located ▁along ▁the ▁Na ções ▁Un idas ▁Avenue ▁( M arg inal ▁Pin he iros ), ▁and ▁connect s ▁the ▁region ▁of ▁the ▁Inter lag