 Shortly after the intersection with Oak Hill Road , Route 4 transitions from a divided arterial highway into a four @-@ lane limited @-@ access freeway . The freeway passes to the west of Belleville Pond and begins to parallel the alignment of Route 102 ( Ten Rod Road ) near the community of Lafayette . Route 4 passes over Amtrak 's Northeast Corridor railroad before entering the business district of Wickford Junction . The freeway interchanges with Routes 2 and 102 at exit 5 , a partial cloverleaf interchange . After the interchange , Route 4 <unk> to the northeast , beginning a parallel alignment with Route 2 that continues to its northern terminus . Route 4 crosses into the town of East Greenwich , passing under South Road before <unk> with Route 2 at exit 6 , a partial cloverleaf interchange . 
