Barrier system for controlling a passage of a vehicle, comprising a rotatable barrier element (50; 50'), comprising: an aboveground element configured for movement in a plane substantially parallel to a driving surface, the aboveground element being movable between a first position in which the aboveground element blocks the passage of the vehicle and a second position in which the passage of the vehicle is possible; and a belowground element comprising a control room, wherein the belowground element (20; 20') is closed off with a metal cover plate (29; 29') at the upper side and is arranged to be installed in the soil, such that an upper surface (28; 28') of the cover plate (29; 29') is mainly coplanar with the driving surface, the control room comprising a turntable (22; 22') that is with an axis of rotation perpendicular to the drive surface and characterized in that the turntable (22; 22') comprises a first and a second part which are rotatable with respect to each other, the first part being detachably connected to an inner surface of the control room and an upper end of the second part extending through an opening (27; 27') in the cover plate (29; 29') and being detachably connected to a bottom surface of the aboveground element, and wherein the aboveground element comprises a metal plate (41; 41') and a heavy object (49; 49') attached thereto, wherein the heavy object (49; 49') is an object that is blocking by weight, having a mass chosen such that it can stop vehicles of a predetermined mass and predetermined maximum speed, the metal plate (41; 41') forming the bottom surface of the aboveground element, which bottom surface area being less than or equal to an area of an underside of the heavy object (49; 49') and which is connected to the upper end of the second part of the turntable (22; 22') such that a vertical distance between the cover plate (29; 29') and the metal plate (41; 41') is negligible, such that the cover plate (29; 29') and metal plate (41; 41') slide over each other during rotation between the first and second position. an aboveground element configured for movement in a plane substantially parallel to a driving surface, the aboveground element being movable between a first position in which the aboveground element blocks the passage of the vehicle and a second position in which the passage of the vehicle is possible; and a belowground element comprising a control room, wherein the belowground element (20; 20') is closed off with a metal cover plate (29; 29') at the upper side and is arranged to be installed in the soil, such that an upper surface (28; 28') of the cover plate (29; 29') is mainly coplanar with the driving surface, the control room comprising a turntable (22; 22') that is with an axis of rotation perpendicular to the drive surface and characterized in that the turntable (22; 22') comprises a first and a second part which are rotatable with respect to each other, the first part being detachably connected to an inner surface of the control room and an upper end of the second part extending through an opening (27; 27') in the cover plate (29; 29') and being detachably connected to a bottom surface of the aboveground element, and wherein the aboveground element comprises a metal plate (41; 41') and a heavy object (49; 49') attached thereto, wherein the heavy object (49; 49') is an object that is blocking by weight, having a mass chosen such that it can stop vehicles of a predetermined mass and predetermined maximum speed, the metal plate (41; 41') forming the bottom surface of the aboveground element, which bottom surface area being less than or equal to an area of an underside of the heavy object (49; 49') and which is connected to the upper end of the second part of the turntable (22; 22') such that a vertical distance between the cover plate (29; 29') and the metal plate (41; 41') is negligible, such that the cover plate (29; 29') and metal plate (41; 41') slide over each other during rotation between the first and second position.