It realigns, rebalances and exercises the entire body during sitting, standing and walking. Moreover, the USPS frequently realigns, merges, or splits ZIP codes to meet changing needs. It realigns fibers to homogenize sheet formation. This process realigns the edge, correcting for dulling causes such as a rolled edge. Tonkin Highway continues southwards through a narrow S curve that realigns the highway further east. William Street realigns itself one block further east through a reverse curve.