JUMBO Railway have been prepared in accordance with current rules on the installation of railways on platforms before they are entered for further installation of frames and handrails. During construction, the railing is mounted from the underlying platform. First, one column of the mounting railing is attached to the frame, after which the entire railing is pushed up, the other column being attached to the frame on the opposite side. Then the platform can be walked on and further frames and railings can be mounted.