Disclosed is an evacuation device (1) for evacuating persons from a vehicle. Said evacuation device (1) comprises a plurality of stacked inflatable chambers (2) that have a rectangular horizontal cross-section, are pneumatically separated from each other and are surrounded on three sides of their periphery by an inflatable supporting unit (3). The top chamber (2) has a walk-on surface (4), and the chambers (2) and the supporting unit (3) can be brought into their operational position by compressed gas. The walk-on surface (4) can be lowered by sequentially deflating the inflatable chambers (2).