Even today there are only three tunnels in all lines except for the section designated as a second-class railway business (Kobe Rapid Transit Railway), and moreover, two of them serve as entrances toward underground lanes, one between Saiin and Kawaramachi and the other, near Tenroku; therefore, Senri Tunnel on the Senri Line is the only tunnel that in fact has a beginning and an end.
現在でもトンネルは第二種鉄道事業区間（神戸高速鉄道）を除くと全線で3か所しか存在せず、そのうち2か所は西院～河原町間と天六付近の地下線へ通じる入口で、出入口がある純粋なトンネルは千里線の千里トンネルただ一つである。