Yonge Street
Provincial downloading separated Yonge Street from Highway 11 during the 1990s. As a result, Highway 11 does not start until Crown Hill just outside Barrie, several kilometres north of where the name "Yonge Street" ends. The Guinness Book of World Records no longer lists Yonge Street as the longest street in the world and has not chosen a replacement street, but cites the Pan-American Highway as the world's longest "motorable road".
Interstate 287
In 2008, a private firm, Polimeni Associates, proposed to construct a more than tunnel across Long Island Sound between Rye and Oyster Bay. This proposed tunnel would be the longest highway tunnel in the world, with its length exceeding that of the Lærdal Tunnel in Norway by a mile. It would start at the junction with the Cross Westchester Expressway and the New England Thruway in Rye and end at NY 135 and NY 25 in Syosset. Estimated to cost approximately $10 billion, it would feature three tubes: the outer tubes would have three lanes of vehicular traffic each and the inner tube would be used for maintenance. The proposed tunnel, which is to be operated by a private firm, is still awaiting approval to begin construction.