Because the local train was available only once every hour and only diesel-powered passenger cars were available above Takarazuka at that time, passengers who wanted to go from Sanda to Osaka often needed to change trains at Takarazuka Station and move to the Hankyu Takarazuka Line.
当時の普通電車は毎時1本しかなく、さらに宝塚以北は気動車か客車での運転だったので、三田から大阪へ向かう客も宝塚で阪急宝塚本線に乗り換えされるなどしていた。