Showing 2 auto-routed bicycle routes (using Map of Studeheitunnelen E 18graphhopper) between the two ends of the tunnel. Download gpx file: map38849195.gpx. Openstreetmap tags:
highway = motorway int_ref = E 18 lanes = 2 layer = -1 lit = yes maxspeed = 100 name = Studeheitunnelen oneway = yes ref = E 18 tunnel = yes