3 (New York City Subway service)

The 3 Seventh Avenue Express is a service of the New York City Subway. It is colored red on station signs, the New York City Subway map and on most IRT rolling stock equipment because it represents service provided on the IRT Broadway-Seventh Avenue Line. All day, 3 trains operate between Harlem–148th Street, Manhattan and New Lots Avenue, Brooklyn, running express in Manhattan and local in Brooklyn. During late nights, 3 trains do not operate and shuttle buses replaces them between Harlem–148th and 135th Streets. The 2 replaces the 3 between 135th Street, Manhattan and Franklin Avenue, Brooklyn and the 4 replaces them between Franklin and New Lots Avenues. During the early morning hours on Sundays, 3 trains run as a shuttle between 148th and 135th Streets.