sentences:  Initial plans called for the Japanese National Railways (JNR) to build a spur line linking Atami on the Tokaido Main Line with Shimoda.However, funding was limited in the 1930s due to a combination of a tight fiscal policy under Prime Minister Osachi Hamaguchi during the Great Depression, and a number of technical issues.The projected route of the Itō line along the mountainous east coast of the Izu Peninsula required numerous tunnels and bridges.