 For many years predominantly single carriageway, a major upgrade of the road to dual-carriageway was completed in 2015 which grade separated all major junctions between Coleman's Corner roundabout and Larne.Beginning at junction 4 of the M2 motorway the road is under motorway restrictions as the A8(M) for around 1.6 km until it meets a roundabout at Corr's Corner.From this point the road is dual carriageway of varying standard for the entirety of its length, meeting roundabouts at Coleman's Corner and just before Larne.