: ▁in ▁addition ▁to ▁the ▁ 1 5 - min ute ▁cycle ▁between ▁St . ▁G allen ▁and ▁Te ufen , ▁connections ▁to ▁Inter city ▁trains ▁to ▁and ▁from ▁Zürich ▁have ▁been ▁improved . ▁The ▁elim ination ▁of ▁the ▁techn ically ▁complex ▁and ▁expensive ▁to ▁operate ▁ra ck ▁section ▁in ▁the ▁R uck hal de ▁has ▁made ▁it ▁possible ▁to ▁use ▁the ▁newly ▁acquired ▁T ango ▁( class ▁A Be ▁ 8 / 1 2 ) ▁low - floor ▁trains , ▁which ▁are ▁more ▁comfortable ▁and ▁qui eter , ▁but ▁also ▁more ▁cost - effect ive . ▁The ▁R uck hal de ▁T unnel ▁route ▁elimin ated ▁the ▁need ▁for ▁six ▁level ▁cross ings , ▁which ▁has ▁significantly ▁increased ▁traffic ▁safety ▁in ▁the ▁Ri eth üs li ▁district . ▁▁ ▁The ▁construction ▁began ▁in ▁the ▁spring ▁of ▁ 2 0 1 6 . ▁The ▁cant ons ▁of ▁St . ▁G allen , ▁App enz ell ▁Aus ser rh oden ▁and ▁App enz ell ▁Inner rh oden ▁and ▁their ▁municipal ities ▁contributed ▁a ▁total ▁of ▁CH F ▁ 4 9 ▁million ▁to ▁the ▁total ▁costs ▁of ▁around ▁CH F ▁ 9 0 ▁million , ▁with ▁the ▁rest ▁being ▁fin anced ▁by ▁the ▁federal ▁government . ▁While ▁the ▁cross - city ▁line ▁had ▁been ▁dup licated ▁through ▁the ▁St . ▁G allen ▁station ▁forec ourt , ▁the ▁forec ourt ▁had ▁also ▁been ▁under ▁renov ation ▁since ▁ 2 0 1 5 . ▁The ▁new ▁line ▁was ▁opened ▁on ▁ 6 ▁October ▁ 2 0 1