6½ Avenue

6½ Avenue is a north-south pedestrian passageway in Midtown Manhattan, New York City, running from West 51st to West 57th Streets between Sixth and Seventh Avenues.

The pedestrian-only avenue is a one-quarter mile (400 m) corridor of privately owned public spaces, such as open-access lobbies and canopied space, which are open during the day. There are stop signs and stop ahead signs at six crossings between 51st and 56th Streets. The mid-block crossing at 57th Street is equipped with a traffic light. At the crosswalk areas, there are sidewalk pedestrian ramps with textured surface and flexible delineators to prevent vehicles parking in the areas.

Each intersection along the thoroughfare has a street name sign that reads "6+1⁄2 AV" and the name of the cross street to officially mark the street name. The mid-block stop signs are unusual for Manhattan, and the fractional avenue name is a new idea for the numbered street system of New York City.