 At the same time, the physician Daniel Schumann Krüger started to popularize the possibility of building a connection from Nesttun to Osøren (now Osøyro).At the time it was popular to build tracks along existing roads and use slow locomotives, and Krüger at first proposed such a solution, but later determined to support a conventional railway.In 1884, a line from Os to Nesttun was estimated to cost NOK 885,000 plus land acquisition costs.