Tilted cylinders that rotate around the main cylinder axis to push you along the tangent of the outer lip of the raised portion, and rotate along global up axis

Tilted cylinders that rotate around the main cylinder axis to push you along the tangent of the outer lip of the raised portion, and rotate along global up axis to change where the raised portion is, changing direction. It acts like a roller on its side that can be rotated to change direction, but probably has advantages mechanically or with not crushing your toes or sucking in your shoelaces or something, or just less friction from the direction rotation change.