Similar announcements are made on other companies' buses, such as on Kyoto buses (when a bus running in a uniform fare section approaches the stop at the boundary of the uniform fare section, the announcement, 'This bus is entering the area outside the uniform fare section,' is made).
これは京都バスなどの路線でも行なわれている（均一区間から外れる境界となるバス停接近時には「これから先、均一運賃区間外となります」とのアナウンスが流れる）。