This solution can be installed:
either at home (to aid access to the various areas of the house or to facilitate the mobility of a disabled occupant on a wheelchair), ensuring the maximum domestic comfort;
or in a condominium (a classic situation in Italy, i.e. three or four steps leading to the ground floor of the building, can be solved perfectly by installing a platform lift);
or to access a store/office/restaurant obstructed by a minor level difference.