After the revision on July 1, 2000, a large number of buses operating both routes on the Yawata Tanabe Route, were decreased by changing the 30 minute interval during daytime operations to a 40 minute interval.
2000年7月1日改正以降は八幡田辺線では2系統合わせて昼間時30分間隔のダイヤから同40分間隔に大減便を行った。