 St. John's is the eastern terminus of the Trans-Canada Highway (Route 1), one of the longest national highways in the world.The divided highway, also known as "Outer Ring Road," runs just outside the main part of the city, with exits to Pitts Memorial Drive (Route 2), Topsail Road (Route 60), Team Gushue Highway (Route 3A), Thorburn Road (Route 50), Allandale Road, Portugal Cove Road (Route 40) and Torbay Road (Route 20), providing relatively easy access to neighbourhoods served by those streets.Pitts Memorial Drive (Route 2) runs from Conception Bay South, through the city of Mount Pearl and into downtown St. John's, with interchanges for Goulds (Routes 3 and 10), The Parkway (Columbus Drive), Water Street and Hamilton Avenue-New Gower Street.