There were a multitude of proposals for where the railway should run. The only points of agreement were that the line should run through Tønsberg, Sandefjord and Larvik, and the line between the three towns was the least controversial. North of Tønsberg there was more disunity. One proposal was to run the railway from Vestfossen Station on the Kongsberg Line along the east shore of Eikeren and down to Tønsberg along a route similar to that which the Tønsberg–Eidsfoss Line would later follow. A branch line would then be built to Horten. This alternative allowed the line to run through an area with good access to lumber, which the railway would aid export. The main disadvantage was that the route was longer than via Sande.