sentences:  It is regularly congested but the improvement will see the road converted to grade separated 2-lane dual carriageway standard .The Government decided that a motorway standard M56 extension would be too environmentally damaging, and instead opted for a route utilising part of the existing road without widening works, whilst providing off-line bypasses for all of the at-grade junctions.The improvements will tie into recently completed works over the Welsh border which upgraded the A550 to a standard similar to that of motorways.