The New York City Subway Lines Project:
W Train (Broadway Express)
The W Train runs from Ditmars Boulevard in Queens to (at least) Stillwell Avenue in Brooklyn. It runs along Broadway in Manhattan as part of the Yellow Line during the 2001-2004 Manhattan Bridge Reconstruction. It runs rush hour one-directional express trains in Queens (downtown in the mornings, uptown in the evenings), express through Manhattan, and local in Brooklyn. On weekends it acts as a shuttle between Stillwell Avenue and Pacific Street only.
Although techincally a yellow line train, it replaces the orange B Train in Brooklyn.
Station Information for the W Train is as follows:
Queens:
Ditmars Blvd-Astoria, 31 Street
Transfers: N
Bus connections: Q19A
Astoria Blvd (Hoyt Av), 31 Street
Transfers: N
Bus connections: Q19 M60 to LaGuardia Airport
30 Avenue (Grand Av), 31 Street
Bus connections: Q66
Broadway, 31 Street
Bus connections: Q104
36 Avenue (Washington Av), 31 Street
Bus connections: Q66
39 Avenue (Beebe Avenue), 31 Street
Queensboro Plaza, Bridge Plaza
Transfers: N 7
Bus connections: Q19A Q32 Q39 Q60 Q66 Q67 Q101 Q102 B61
Manhattan:
Lexington Av, 60 Street
Transfers: 4 5 6 N R
Bus and other connections: M31 M57 M98 M101 M102 M103 Q32
5 Avenue, 59-60 Streets
Bus connections: M1 M2 M3 M4 M5 M30 Q32
57 Street, 7 Avenue
Transfers: N R Q
Bus connections: M6 M7 M30 M31 M57
49 Street, 7 Avenue
Transfers: N R
Bus connections: M27 M50
42 Street - Times Square, Broadway 7 Avenue
Transfers: 1 2 3 7 9 A C E S N R
Bus and other connections: M10 M16 M27 M42 M104 Port Authority Bus Terminal
34 Street - Herald Square, Broadway
Wheelchair accessible.
Transfers: B D F N Q R S
Bus and other connections: M4 M6 M16 M34 Q32 PATH LIRR Amtrak NJTransit
14 Street - Union Square, Broadway
Transfers: 4 5 6 L N Q R
Bus and other connections: M1 M2 M3 M7 M9 M14
Canal Street, Broadway
Transfers: 6 J M N Q R Z
Brooklyn:
Pacific Street, 4 Avenue
Transfers: 2 3 4 5 M N R
Bus and other connections: B41 B45 B63 B65 B67 LIRR
36 Street, 4 Avenue
Bus and other connections: B35 B70
9 Avenue, 39 Street
Bus and other connections: B35
Fort Hamilton Pkwy, New Utrecht Av
50 Street, New Utrecht Av
Bus and other connections: B11
55 Street, New Utrecht Av
Bus and other connections: B16
62 Street, New Utrecht Av
Transfers: M N
Bus and other connections: B9 B23
71 Street, New Utrecht Av
79 Street, New Utrecht Av
18 Avenue, New Utrecht Av
Bus and other connections: B1 B8
20 Avenue, 86 Street
Bay Parkway, 86 Street
Transfers: M
Bus and other connections: B1 B6 B82
25 Avenue, 86 Street
Bus and other connections: B1 B3 B4
Bay 50 St, Stillwell Av
Bus and other connections: B64
Stillwell Av-Coney Island, Surf Av
Transfers:B D F N Q
Bus and other connections: B36 B64 B74
The appellation of the train might have been because it replaces the West End line, and the MTA decided to use this particular letter to represent that. | 
