Arna Tunnel
In contrast to the roadway , the Bergen Line runs through the mountain in the Ulriken Tunnel , and the Norwegian State Railways operate a service with the Bergen Commuter Rail between Bergen Station and Arna Station every 30 minutes . 
<triplet> Ulriken Tunnel <subj> Bergen Line <obj> carries <subj> Norwegian State Railways <obj> operator <subj> Arna Station <obj> terminus <triplet> Bergen Commuter Rail <subj> Norwegian State Railways <obj> operator <triplet> Bergen Station <subj> Bergen Line <obj> connecting line <subj> Norwegian State Railways <obj> operator <subj> Arna Station <obj> adjacent station <triplet> Arna Station <subj> Bergen Line <obj> connecting line <subj> Bergen Station <obj> adjacent station