Abstract: A portal system for a railway or other vehicle having steps from the interior flooring downwards to the ground has a bridge platform to be deployed for use when the vehicle is stopped at a railway station platform. A threshold member closes at least part of the gap that typically lies between the bridge platform and the railway station platform. A carrier mechanism supports the threshold member on the outer side of the door and deploys the threshold member adjacent to the bridge platform when the bridge platform is also deployed and the door is open, and not otherwise. The carrier mechanism comprises a rail mounted on the threshold mechanism, and at least two slides mounted on the outer side of the do or and that slide with respect to the rail as the door slides between open and shut positions.

Abstract: The invention relates to a door for a railway vehicle, intended for a door opening having steps, on which there are provided a platform and a threshold above the steps to permit disembarking onto a railway platform situated higher than the steps.

Abstract: The invention relates to a door for a railway vehicle, intended for a door opening having steps, on which there are provided a platform and a threshold above the steps to permit disembarking onto a railway platform situated higher than the steps. The invention is characterised in that the door includes a single leaf and a mechanism provided for controlling the unlocking of the threshold member with respect to the door, when the platform is in the position of use and the door opens, so that this threshold member remains in place opposite the edge of the platform in the position of use and the edge of the railway platform.