For driving the mutually coupled chain lifts, four winches fitted with double chain wheel and high-torque hydraulic motor equipped with blocking brake, hydraulic release and, if necessary,additional centrifugal brake, are used. Boat’s lowering speed is stabilized and controlled by a two-way flow controller. A schematic diagram of the hydraulic driveand control system is presented in the next section. Fast and efficient evacuation of people from all decks of the ship is ensured by an appropriate form of staircases and a visual and acoustic system for directing the people to the life boats. The concept is based on that the doors leading from the staircases are located just opposite the entrances to the boats. Moreover, an emergency passage connecting successive levels, placed just behind the casing, is provided to facilitate people displacing in emergency. And, in this area anti-slipping materials are used to prevent people from slipping and falling down.