A passage barrier , comprising - a first guide element and - a second guide element (2b, wherein o the first guide element and the second guide element define an interlock region through which people pass from an entrance region into a passage region , - at least one barrier element that can prevent and/or enable the passage of a person from the entrance region into the passage region within the interlock region , - a drive, o wherein the drive has a drive unit and o wherein the drive has an output unit , • wherein the drive unit , the output unit and the barrier element are operatively connected in such manner that the barrier element is movable by means of the drive unit into a position closing the interlock region and into a position releasing the interlock region , characterized in that - at least one of the guide elements comprises a profile attachment element for attaching at least one profile of a guide element to the floor of a building structure, wherein - the profile attachment element has a vertical profile mount for receiving a vertically running profile on the profile attachment element and - the profile attachment element has a horizontal profile feedthrough for feeding a horizontally running profile through the profile attachment element . - a first guide element and - a second guide element (2b, wherein o the first guide element and the second guide element define an interlock region through which people pass from an entrance region into a passage region , o the first guide element and the second guide element define an interlock region through which people pass from an entrance region into a passage region , - at least one barrier element that can prevent and/or enable the passage of a person from the entrance region into the passage region within the interlock region , - a drive, o wherein the drive has a drive unit and o wherein the drive has an output unit , • wherein the drive unit , the output unit and the barrier element are operatively connected in such manner that the barrier element is movable by means of the drive unit into a position closing the interlock region and into a position releasing the interlock region , o wherein the drive has a drive unit and o wherein the drive has an output unit , • wherein the drive unit , the output unit and the barrier element are operatively connected in such manner that the barrier element is movable by means of the drive unit into a position closing the interlock region and into a position releasing the interlock region , • wherein the drive unit , the output unit and the barrier element are operatively connected in such manner that the barrier element is movable by means of the drive unit into a position closing the interlock region and into a position releasing the interlock region , - at least one of the guide elements comprises a profile attachment element for attaching at least one profile of a guide element to the floor of a building structure, wherein - the profile attachment element has a vertical profile mount for receiving a vertically running profile on the profile attachment element and - the profile attachment element has a horizontal profile feedthrough for feeding a horizontally running profile through the profile attachment element . <EOS>