▁design ation ▁S 3 0 ▁and ▁signed ▁as ▁ 4 0 D , ▁the ▁ ▁Lib ram iento ▁Nor pon iente ▁de ▁Sal til lo ▁( Sal til lo ▁North west ▁B yp ass ) ▁opened ▁in ▁October ▁ 2 0 1 0 . ▁Like ▁the ▁Sal til lo - Mon ter rey ▁highway , ▁the ▁Lib ram iento ▁Nor pon iente ▁de ▁Sal til lo ▁is ▁operated ▁by ▁CA MS . ▁ ▁Sal til lo - Mon ter rey ▁ ▁Le aving ▁Sal til lo , ▁the ▁ 4 0 D ▁design ation ▁returns ▁again ▁for ▁the ▁highway ▁connecting ▁Sal til lo ▁to ▁Mon ter rey , ▁Nue vo ▁León . ▁Highway ▁ 4 0 D ▁closely ▁par alle ls ▁Highway ▁ 4 0 , ▁with ▁its ▁l one ▁to ll ▁bo oth ▁( S anta ▁Cat arina ) ▁placed ▁before ▁the ▁j unction ▁with ▁the ▁An illo ▁Per if ér ico ▁de ▁Mon ter rey , ▁which ▁serves ▁as ▁the ▁latter ' s ▁western ▁termin us ▁and ▁also ▁provides ▁access ▁to ▁Highway ▁ 4 0 . ▁Tra vel ers ▁also ▁have ▁the ▁option ▁of ▁going ▁straight ▁to ▁connect ▁with ▁Aven ida ▁Ig na cio ▁Mor ones ▁Pri eto , ▁a ▁major ▁urban ▁thorough fare ▁in ▁the ▁Mon ter rey ▁area , ▁in ▁Santa ▁Cat arina , ▁though ▁this ▁route ▁is ▁M X N $ 2 5 ▁more ▁expensive ▁than ▁exit ing ▁onto ▁the ▁Mon ter rey ▁bel t way . ▁In ▁combination ▁with ▁the ▁Lib ram iento ▁Nor pon iente ▁de