During the Manhattan borough of Ny city "streets" are near twenty per mile, even though the key numbered "avenues" are about 6 for every mile. (Centerline to centerline, 42nd Road to 22nd Street is supposed to be 5250 ft when 42nd Road to 62nd Road is imagined to be[clarification wanted] 5276Â ft eight in.)[citation desired] Metric mile[edit]Unde