<map lat='63.43270287961341' lng='10.436325073242188' zoom='11' view='0' float='right'/> Trondheim is a city in Norway. It is the 3rd largest city in Norway.
To go north, a convenient place is Innherredsveien, around where it crosses Mellomveien. You can get there by crossing one of the bridges bridge east of the train station, Bakke Bru (bridge) or Nidelv Bru. Inherredsveien becomes the E6.
To go South, you can intercept the E6 at Heimdal, near the train station, by taking a train or city bus south.
Klet is maybe a better option. Right by the highway, 5min waiting time in the winter. Bus 71 (not sure) runs couple of times a day from the center of trondheim and by the stadium.
Alternatively, you can follow the signs out of the city for the north, walking through industrial areas and then follow the signs past a roundabout for the south towards Oslo. There's a nice layby. Ask to be dropped off at Bratsbergveg or anywhere along the E6 out of the city. Don't try to walk further along this route as you just get to a tunnel which continues for more than a mile..really dangerous to breathe in all those fumes. Eick!