A method for turning a pinion-driven lift-robot in an intersection of rails. Moving the pinion-driven lift-robot in a first motion mode to position the pinion-driven lift-robot in a first position at the intersection. The pinion-driven lift-robot is turned over a corner of the intersection that is accessible from the first position and that includes continuous rails connecting a vertical track and a horizontal track, whereby positioning the pinion-driven lift-robot in a second position at the intersection. The pinion-driven lift-robot is moved in a second motion mode towards a designated direction.