Access control installation

An access control installation comprising a structure, a surface that extends between two walls of the structure to form a floor that is movable relative to the structure parallel to the walls and on which users are to stand, and motor means for driving movement of the surface in translation between the walls from an entrance of the installation to an exit of the installation;

• and at least one item selected from a document reader and from a biometric sensor device, which item is mounted on the structure at a predetermined distance from the exit of the installation, and an electronic processor unit connected to the document reader and/or to the biometric sensor device and arranged to compare reference data with the data supplied by the document reader and/or by the biometric sensor device in order to verify that they match, the predetermined distance being sufficient, given the speed at which the surface moves, for the electronic processor unit to perform the verification operation before the user concerned reaches the exit of the installation.