M31 and M57 buses

m31, m57
57th Street Crosstown Line
A 2019 XD40 (7597) on the M31 and a 2021 LFS HEV (9676) on the Upper West Side-bound M57
Overview
SystemMTA Regional Bus Operations
OperatorManhattan and Bronx Surface Transit Operating Authority
GarageTuskegee Airmen Depot (M31)
Michael J. Quill Depot (M57)
VehicleNova Bus LFS HEV
New Flyer Xcelsior XD40
New Flyer Xcelsior XE40 (M57 only)
    Route
    LocaleManhattan, New York, U.S.
    Communities servedUpper West Side, Riverside South, Hell's Kitchen, Midtown, Sutton Place, Upper East Side
    StartM31: Hell's Kitchen –54th Street and 11th Avenue
    M57: Upper West Side –72nd Street and Amsterdam Avenue
    Via57th Street
    M31: York Avenue
    M57: West End Avenue
    EndM31: Upper East Side –1st Avenue and 92nd Street
    M57: Sutton Place –1st Avenue and 55th Street
    Length2.7 miles (4.3 km) (eastbound M57)
    3.0 miles (4.8 km) (westbound M57)
    3.8 miles (6.1 km) (M31)
    Service
    OperatesM31: 5 a.m. (7 a.m. weekends) to 12:30 a.m.
    M57: 5 a.m. (6:30 a.m. weekends) to 12:30 a.m.
    RidershipM31: 2,447,050 (2024)
    M57: 1,704,084 (2024)
    TransfersYes
    TimetableM31 M57
     M23 SBS
    M50
     {{{system_nav}}}  M34 SBS
    M60 SBS 

    The M31 and M57 bus routes constitute the 57th Street Crosstown Line, a public transit line in Manhattan, New York City, running primarily along 57th Street. The M31 runs between 11th Avenue and 54th Street in Hell's Kitchen to 1st Avenue and 92nd Street in Yorkville. The M57 runs from 72nd Street and Amsterdam Avenue on the Upper West Side to Sutton Place and 57th Street in Sutton Place.

    The M31 and M57 are legally operated by the Manhattan and Bronx Surface Transit Operating Authority, a wholly-owned subsidiary of New York City Transit, whose bus routes were consolidated into MTA Regional Bus Operations.