13 (BMT rapid transit service)

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colspan=2 align=center|R1 end rollsigns13 was the BMT's designation for service on the BMT Fulton Street Line (not to be confused with today's IND Fulton Street Line, which uses a portion of the old BMT line at its east end).

When the BMT assigned numbers in 1924, 13 was assigned to trains between Park Row in Manhattan and Lefferts Avenue-119th Street, via the Brooklyn Bridge and BMT Fulton Street Line. Service patterns were rather complicated, with the following services running::Morning rush hours:
*Trains beginning at Lefferts Avenue or Grant Avenue ran express from Atlantic Avenue to Franklin Avenue, and then local to Park Row.
*Trains beginning at Atlantic Avenue ran local to Park Row, or used the spur to Fulton Ferry in downtown Brooklyn.:Afternoon rush hours:
*Trains from Park Row to Lefferts Avenue ran express from Sands Street (on the Brooklyn side of the Brooklyn Bridge) to Lafayette Avenue and Grand Avenue to Atlantic Avenue.
*Trains from Park Row to Grant Avenue ran express from Sands Street to Boerum Place and Flatbush Avenue to Franklin Avenue.
*Trains from Fulton Ferry ran local.
*Extra trains ran from Franklin Avenue to Lefferts Avenue, express to Atlantic Avenue.

By 1925, local morning trains were added from Grant Avenue to Fulton Ferry or Park Row. Between 1925 and 1931, afternoon rush hour service was changed to the following:
*Express trains from Park Row to Lefferts Avenue ran express from Sands Street to Atlantic Avenue; local trains made all stops.
*Trains from Fulton Ferry ran local.
*Extra trains ran from Sands Street to Lefferts Avenue, running express from Franklin Avenue to Atlantic Avenue.

Between 1931 and 1937, local morning trains were shifted from beginning at Atlantic and Grant Avenues to beginning at Grant and Lefferts Avenues. Afternoon service became the following:
*Some express trains from Park Row to Lefferts Avenue ran express from Sands Street to Franklin Avenue; others from Franklin Avenue to Atlantic Avenue.
*Local trains from Park Row ended at Grant Avenue or Lefferts Avenue.
*Trains from Fulton Ferry ran local.
*Extra trains ran from Sands Street to Lefferts Avenue, running express from Franklin Avenue to Atlantic Avenue.Extra service during all rush hours and Saturday mornings ran only from Lefferts Avenue to Atlantic Avenue.

Also at this time, special "14th Street-Fulton Street" rush hour and Saturday morning trains were added between Lefferts Avenue and Eighth Avenue on the BMT 14th Street-Canarsie Line, switching lines at Atlantic Avenue.

Between 1937 and 1939, local morning trains were truncated at Sands Street (with some still going to Fulton Ferry).

The BMT Fulton Street Line was closed west of Rockaway Avenue on May 31, 1940, with free transfers to the IND Fulton Street Line. Service from then on was limited to trains running the remaining length, as well as 14th Street-Fulton Street trains and the new Fulton-Lexington Avenue service (provided by 12 trains).

On April 26, 1956, the BMT Fulton Street Line was abandoned west of Hudson Street; the rest became part of the IND Fulton Street Line on April 29.

References

* [http://nycsubway.org/maps/historical/ NYCsubway.org - Historical Maps]
* [http://www.bmt-lines.com/maps.html BMT-Lines.com - Service/Maps]
*B.M.T. 'El' Lines to Shift Service; City to Close 2 Sections This Week, New York Times May 27, 1940 page 19