 The route passes through many communities along the way, including New Brunswick, Highland Park, Edison, Metuchen, Rahway, and Elizabeth.Route 27 is a two- to four-lane undivided highway for most of its length, passing through a variety of urban and suburban environments.It intersects many roads along the way, including Route 18 in New Brunswick, Interstate 287 in Edison, the Garden State Parkway in Woodbridge Township, Route 35 in Rahway, Route 28 in Elizabeth, and U.S. Route 22 in Newark.