Interstate 95 (I-95) is the main highway on the East Coast of the Unite States, paralleling the Atlantic Ocean from Maine to Florida and serving some of the largest urban areas in the country including Boston, New York City, Philadelphia, Baltimore, Washington, D.C., and Miami. It is one of the north-south routes of the Interstate Highway System, and replaced older U.S. Highways, mainly U.S. Route 1. The oldest sections of I-95, including a number of toll roads, predate the Interstate System; the route has yet to be completed in the Pennsylvania-New Jersey area. Currently, I-95 has a gap in New Jersey that is scheduled to be completed by next decade.