通勤五方面作戦

of this. Before the 1965–1982 Commuting Five Directions Operation (ja:通勤五方面作戦) project undertaken by Japanese National Railways (JNR) on five trunk railway

to increase its capacity by the Five Directions of Commuting Campaign (通勤五方面作戦, Tsūkin Go-hōmen Sakusen) to redevelop major five lines in the area by