Park Avenue is a wide New York City boulevard which carries north and southbound traffic in the borough of Manhattan, and is also a wide one-way pair in the Bronx. For most of the road's length in Manhattan, it runs parallel to Madison Avenue to the west and Lexington Avenue to the east. Park Avenue's entire length was formerly called Fourth Avenue; the title still applies below 14th Street. Meanwhile, the section between 14th and 17th Street is called Union Square East, and between 17th and 32nd Streets, the name Park Avenue South is used. In the Bronx, Park Avenue runs in several segments between the Major Deegan Expressway and Fordham Road.