Among the lines of the uji-yodo route via ogura , which had continuously reduced the number of services since 1997 , line no . 31 going directly toward bonoike from kitakawazura without going through nishi-imoarai was closed down on april 1 , 2004 . 2004年4月1日には1997年以降徐々に減便が続いていた小倉経由路線の内、西一口を経由せずに北川頭(きたかわづら)より直接坊ノ池(ぼうのいけ)に向かう31系統が廃止。