▁The ▁foot print ▁of ▁the ▁older ▁emb ank ment ▁route ▁is ▁today ▁occupied ▁by ▁Rö nt gen str asse . ▁ ▁As ▁built , ▁the ▁tunnel ▁was ▁ ▁long , ▁with ▁a ▁southern ▁portal ▁close ▁to ▁the ▁Ros eng arten str asse . ▁In ▁the ▁ 1 9 9 0 s , ▁the ▁tunnel ▁was ▁extended ▁to ▁the ▁south , ▁by ▁covering ▁the ▁existing ▁railway ▁cutting , ▁so ▁that ▁the ▁new ▁southern ▁portal ▁was ▁immediately ▁to ▁the ▁north ▁of ▁W ip k ingen ▁station . ▁As ▁a ▁result ▁of ▁the ▁extension , ▁the ▁tunnel ▁is ▁now ▁ ▁in ▁length . ▁ ▁The ▁W ip k ingen ▁T unnel ▁is ▁now ▁one ▁of ▁three ▁different ▁routes ▁from ▁O er lik on ▁to ▁Haupt bahn hof , ▁each ▁of ▁which ▁t unn els ▁through ▁the ▁intermediate ▁r idge ▁and ▁emer ges ▁from ▁adjacent ▁port als ▁to ▁the ▁south ▁of ▁O er lik on ▁station . ▁Like ▁the ▁W ip k ingen ▁T unnel , ▁the ▁K ä fer berg ▁T unnel ▁( open ed ▁in ▁ 1 9 6 9 ) ▁connect s ▁to ▁the ▁Haupt bahn hof ' s ▁western ▁approaches , ▁whilst ▁the ▁Wein berg ▁T unnel ▁( open ed ▁in ▁ 2 0 1 4 ) ▁access es ▁the ▁Haupt bahn hof ' s ▁lower ▁level ▁through ▁platforms ▁from ▁the ▁east . ▁ ▁Since ▁the ▁opening ▁of ▁the ▁Wein berg ▁T unnel , ▁use ▁of ▁the ▁W ip k ingen ▁T unnel ▁is ▁largely ▁conf ined ▁to ▁long ▁distance ▁trains , ▁with