J/Z (New York City Subway service)
New York City Subway service
The J Nassau Street Local and Z Nassau Street Express are two rapid transit services in the B Division of the New York City Subway. Their route emblems, or "bullets", are colored brown. The services use the BMT Nassau Street Line in Lower Manhattan.
The J operates 24 hours daily, while the Z is a variant to the J and operates only in the peak direction during rush hours; both services operate between Jamaica Center–Parsons/Archer in Jamaica, Queens, and Broad Street in Lower Manhattan. When the Z operates, the two services form a skip-stop pair between Sutphin Boulevard–JFK and Myrtle Avenue/Broadway and also make express stops between Myrtle and Marcy Avenues in Brooklyn. Midday J service also makes express stops between Myrtle and Marcy Avenues and all stops along the full route other times.
The J/Z's current skip-stop pattern was implemented in 1988. The J/Z is derived from four routes:
The JJ/15 between Broad or Chambers Streets in Lower Manhattan and 168th Street in Queens
The KK between 57th Street/Sixth Avenue in Midtown Manhattan and 168th Street in Queens
The QJ between Brighton Beach (Coney Island August 1968–January 1973) in Brooklyn and 168th Street in Queens
The 14 between Broad or Chambers Streets in Lower Manhattan and Canarsie–Rockaway Parkway in Brooklyn
History
Before the Chrystie Street Connection
The Jamaica Line – then known as the Broadway Elevated – was one of the original elevated lines in Brooklyn, completed in 1893 from Cypress Hills west to Broadway Ferry in Williamsburg. It was then a two-track line, with a single local service between the two ends, and a second east of Gates Avenue, where the Lexington Avenue Elevated merged. This second service later became the 12, and was eliminated on October 13, 1950, with the abandonment of the Lexington Avenue Elevated.
“J/Z (New York City Subway service)” enters the record as new York City Subway service. Crown Archives preserves that source wording while asking what York, City and Subway can confirm, complicate or overturn.
Why this record matters
“J/Z (New York City Subway service)” is worth following because a concise public description often conceals a longer documentary argument. Here, York, City and Subway provides the most credible route into that argument.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Sep 2, 2026. The linked authority identifier is Q111270965. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1988, 1968, 1973 and 1893.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. 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
- Jurisdictional context
- 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 “J/Z (New York City Subway service)”, its source revision and the description used here.
- Expand the search: follow J/Z (New York City Subway service) primary sources, J/Z (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
- Which source most directly establishes the central claim about “J/Z (New York City Subway service)”?
- Which earlier names or jurisdictions may reveal additional records?
- What physical evidence or contemporary plan supports the description?
Search terms from this dossier
This entry incorporates text from “J/Z (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.