At this time, the Fukuchiyama Line and the Sanin Main Line were constructed with Fukuchiyama as a connection; this was due to the fact that expanding the transportation network connecting Keihanshin and Maizuru Port, one of the major military ports in Japan, was an urgent issue in the preparation for the Russo-Japanese War.
このとき日本は日露戦争を控え、京阪神と日本有数の軍港である舞鶴港をつなぐ交通網の普及が急がれたことから、福知山はその中継地点として福知山線と山陰本線の敷設が行われた。