D (New York City Subway service)
New York City Subway service
The D Sixth Avenue Express is a rapid transit service in the B Division of the New York City Subway. Its route emblem, or "bullet", is colored orange, since it uses the IND Sixth Avenue Line as its main trunk line in Manhattan.
The D operates 24 hours daily between 205th Street in Norwood, Bronx, and Stillwell Avenue in Coney Island, Brooklyn. Daytime service makes express stops in Manhattan, and in Brooklyn (between Atlantic Avenue and 36th Street) and also bypasses DeKalb Avenue. During rush hours in the peak direction, D service also makes express stops between Fordham Road in the Bronx and 145th Street in Manhattan. Overnight service is the same as daytime service, except all trains make all stops in Brooklyn and stops at DeKalb Avenue.
In its early years, the D ran to Chambers Street/Hudson Terminal in Lower Manhattan via the lower IND Eighth Avenue Line south of West 4th Street. From 1954 to 1967, the D ran via the IND Culver Line to Coney Island. With the completion of the Chrystie Street Connection, service was rerouted via the BMT Brighton Line, running there from 1967 to 2001. As part of the multi-year rebuilding of the Manhattan Bridge, a short-lived yellow D service ran via the BMT Broadway Line in Manhattan to the Brighton Line in Brooklyn, while orange D service used the Sixth Avenue, Central Park West, and Concourse Lines in Manhattan and the Bronx.
Begin with the source’s own compact description: “D (New York City Subway service)” is new York City Subway service. The dossier treats that line as a proposition to test through York, City and Subway, not as a finished interpretation.
Why this record matters
The phrase “new York City Subway service” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Sep 13, 2026. The linked authority identifier is Q126396. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1954, 1967 and 2001.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
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- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “D (New York City Subway service)”, its source revision and the description used here.
- Expand the search: follow D (New York City Subway service) primary sources, D (New York City Subway service) archive and York research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “D (New York City Subway service)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.