{
  "bbox": [
    20.87,
    52.11,
    21.1,
    52.31
  ],
  "center": [
    21,
    52.23
  ],
  "country": "Poland",
  "defaultZoom": 11,
  "homeCurrency": "PLN",
  "id": "warsaw",
  "lines": [
    {
      "cityId": "warsaw",
      "color": "#0057B8",
      "displayNumber": "M1",
      "id": "warsaw-line-M1",
      "name": {
        "en": "Line M1 (Kabaty ↔ Młociny)",
        "pl": "I linia metra"
      },
      "phases": [
        {
          "confidence": "high",
          "constructionStart": "1983",
          "geometryRef": "warsaw-M1",
          "id": "warsaw-m1-1995-kabaty-politechnika",
          "kind": "initial",
          "label": {
            "en": "Stage I: Kabaty → Politechnika (initial section)"
          },
          "notes": "First 11.5 km / 11 stations (Kabaty, Natolin, Imielin, Stokłosy, Ursynów, Służew, Wilanowska, Wierzbno, Racławicka, Pole Mokotowskie, Politechnika). Public passenger service began 7 Apr 1995. Physical construction dated to 15 Apr 1983 (first steel sheet-pile driven at Ursynów) — the true physical-works start, not a contract/ceremony.",
          "opened": "1995-04-07",
          "segment": {
            "fromStopIndex": 10,
            "toStopIndex": 20
          },
          "sources": [
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (PL)",
              "quote": "7 kwietnia 1995 o godz. 12.00 na stacji Wilanowska miało miejsce uroczyste uruchomienie pierwszego odcinka",
              "tier": "tertiary",
              "title": "Linia M1 metra w Warszawie — Wikipedia (PL)",
              "url": "https://pl.wikipedia.org/wiki/Linia_M1_metra_w_Warszawie"
            },
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (PL)",
              "quote": "za początek inwestycji uznaje się 15 kwietnia 1983, kiedy to nastąpiło wbicie na Ursynowie pierwszego stalowego pala ścianki berlińskiej.",
              "tier": "tertiary",
              "title": "Linia M1 metra w Warszawie — Wikipedia (PL) (physical construction start)",
              "url": "https://pl.wikipedia.org/wiki/Linia_M1_metra_w_Warszawie"
            },
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (EN)",
              "quote": "the first section of line M1 — eleven stations between Kabaty and Politechnika — opened on 7 April 1995.",
              "tier": "tertiary",
              "title": "Warsaw Metro — Wikipedia (EN)",
              "url": "https://en.wikipedia.org/wiki/Warsaw_Metro"
            }
          ],
          "stationCount": 11
        },
        {
          "confidence": "high",
          "cost": {
            "basis": "outturn",
            "confidence": "high",
            "nominal": {
              "currency": "PLN",
              "isEstimate": false,
              "value": 215000000,
              "year": 1998
            },
            "notes": "Construction cost of the Centrum extension: station 120M zł + connecting tunnels 95M zł = 215M zł. Figures in post-1995-redenomination (new) złoty.",
            "sources": [
              {
                "accessedAt": "2026-07-14",
                "kind": "wikipedia",
                "publisher": "Wikipedia (PL)",
                "quote": "Koszt budowy stacji wyniósł 120 mln złotych, natomiast tuneli 95 mln złotych.",
                "tier": "tertiary",
                "title": "Linia M1 metra w Warszawie — Wikipedia (PL)",
                "url": "https://pl.wikipedia.org/wiki/Linia_M1_metra_w_Warszawie"
              }
            ]
          },
          "geometryRef": "warsaw-M1",
          "id": "warsaw-m1-1998-centrum",
          "kind": "extension",
          "label": {
            "en": "Stage II: Politechnika → Centrum"
          },
          "notes": "Added station Centrum (A12).",
          "opened": "1998-05-26",
          "segment": {
            "fromStopIndex": 9,
            "toStopIndex": 10
          },
          "sources": [
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (PL)",
              "quote": "26 maja 1998 uruchomiono stację Centrum",
              "tier": "tertiary",
              "title": "Linia M1 metra w Warszawie — Wikipedia (PL)",
              "url": "https://pl.wikipedia.org/wiki/Linia_M1_metra_w_Warszawie"
            }
          ],
          "stationCount": 1
        },
        {
          "confidence": "high",
          "cost": {
            "basis": "estimate",
            "confidence": "high",
            "nominal": {
              "currency": "PLN",
              "isEstimate": true,
              "value": 400000000,
              "year": 2001
            },
            "notes": "PL Wikipedia gives 'około 400 mln złotych' (approximately 400M zł) for the two-station Centrum→Ratusz investment — an approximate total, so recorded as an estimate. This cost was contested during verification and settled by the Opus tiebreaker (still confirmed).",
            "sources": [
              {
                "accessedAt": "2026-07-14",
                "kind": "wikipedia",
                "publisher": "Wikipedia (PL)",
                "quote": "Łączny koszt inwestycji wyniósł około 400 mln złotych.",
                "tier": "tertiary",
                "title": "Linia M1 metra w Warszawie — Wikipedia (PL)",
                "url": "https://pl.wikipedia.org/wiki/Linia_M1_metra_w_Warszawie"
              }
            ]
          },
          "geometryRef": "warsaw-M1",
          "id": "warsaw-m1-2001-swietokrzyska-ratusz",
          "kind": "extension",
          "label": {
            "en": "Stage III: Centrum → Ratusz (Świętokrzyska, Ratusz)"
          },
          "notes": "Added Świętokrzyska (A13) and Ratusz (A14, later renamed Ratusz Arsenał).",
          "opened": "2001-05-11",
          "segment": {
            "fromStopIndex": 7,
            "toStopIndex": 9
          },
          "sources": [
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (PL)",
              "quote": "11 maja 2001 oddano do użytku stacje Świętokrzyska i Ratusz",
              "tier": "tertiary",
              "title": "Linia M1 metra w Warszawie — Wikipedia (PL)",
              "url": "https://pl.wikipedia.org/wiki/Linia_M1_metra_w_Warszawie"
            }
          ],
          "stationCount": 2
        },
        {
          "confidence": "high",
          "geometryRef": "warsaw-M1",
          "id": "warsaw-m1-2003-dworzec-gdanski",
          "kind": "extension",
          "label": {
            "en": "Stage IV: Ratusz → Dworzec Gdański"
          },
          "notes": "Added station Dworzec Gdański (A15), entered service 20 Dec 2003.",
          "opened": "2003-12-20",
          "segment": {
            "fromStopIndex": 6,
            "toStopIndex": 7
          },
          "sources": [
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (PL)",
              "quote": "20 grudnia 2003 miało miejsce uroczyste otwarcie tej stacji",
              "tier": "tertiary",
              "title": "Linia M1 metra w Warszawie — Wikipedia (PL)",
              "url": "https://pl.wikipedia.org/wiki/Linia_M1_metra_w_Warszawie"
            }
          ],
          "stationCount": 1
        },
        {
          "confidence": "high",
          "cost": {
            "basis": "outturn",
            "confidence": "high",
            "nominal": {
              "currency": "PLN",
              "isEstimate": true,
              "value": 92000000,
              "year": 2005
            },
            "notes": "Recorded as an estimate/upper-bound because the sourced 92M zł figure BUNDLES the metro station, turnback/siding tracks AND the rebuilt ul. Słowackiego including tram tracks — it is not a pure-metro cost, so it overstates metro-attributable spend. Kept for coverage with this caveat; no separate metro-only figure was found.",
            "sources": [
              {
                "accessedAt": "2026-07-14",
                "kind": "wikipedia",
                "publisher": "Wikipedia (PL)",
                "quote": "Koszt budowy stacji i torów odstawczych oraz nowej ul. Słowackiego wraz z torami tramwajowymi wyniósł 92 mln złotych",
                "tier": "tertiary",
                "title": "Linia M1 metra w Warszawie — Wikipedia (PL)",
                "url": "https://pl.wikipedia.org/wiki/Linia_M1_metra_w_Warszawie"
              }
            ]
          },
          "geometryRef": "warsaw-M1",
          "id": "warsaw-m1-2005-plac-wilsona",
          "kind": "extension",
          "label": {
            "en": "Stage V: Dworzec Gdański → Plac Wilsona"
          },
          "notes": "Added station Plac Wilsona (A16); brought into passenger service 8 Apr 2005.",
          "opened": "2005-04-08",
          "segment": {
            "fromStopIndex": 5,
            "toStopIndex": 6
          },
          "sources": [
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (PL)",
              "quote": "8 kwietnia 2005 o godzinie 5.08 stacja Plac Wilsona została włączona do ruchu pasażerskiego",
              "tier": "tertiary",
              "title": "Linia M1 metra w Warszawie — Wikipedia (PL)",
              "url": "https://pl.wikipedia.org/wiki/Linia_M1_metra_w_Warszawie"
            }
          ],
          "stationCount": 1
        },
        {
          "confidence": "high",
          "geometryRef": "warsaw-M1",
          "id": "warsaw-m1-2006-marymont",
          "kind": "extension",
          "label": {
            "en": "Stage VI: Plac Wilsona → Marymont"
          },
          "notes": "Added station Marymont (A17; the PL Wikipedia station-code text reads 'A19 Marymont', a minor source inconsistency).",
          "opened": "2006-12-29",
          "segment": {
            "fromStopIndex": 4,
            "toStopIndex": 5
          },
          "sources": [
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (PL)",
              "quote": "29 grudnia 2006 uruchomiono stację A19 Marymont",
              "tier": "tertiary",
              "title": "Linia M1 metra w Warszawie — Wikipedia (PL)",
              "url": "https://pl.wikipedia.org/wiki/Linia_M1_metra_w_Warszawie"
            }
          ],
          "stationCount": 1
        },
        {
          "confidence": "high",
          "geometryRef": "warsaw-M1",
          "id": "warsaw-m1-2008-slodowiec",
          "kind": "extension",
          "label": {
            "en": "Stage VII: Marymont → Słodowiec"
          },
          "notes": "Added station Słodowiec (A18); first passenger train 23 Apr 2008. Originally planned to open with Marymont but delayed over a year — a distinct staged opening from the final Bielany section (25 Oct 2008).",
          "opened": "2008-04-23",
          "segment": {
            "fromStopIndex": 3,
            "toStopIndex": 4
          },
          "sources": [
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (PL)",
              "quote": "23 kwietnia 2008 otwarto stację Słodowiec i o godz. 10.25 wjechał na nią pierwszy pociąg z pasażerami.",
              "tier": "tertiary",
              "title": "Linia M1 metra w Warszawie — Wikipedia (PL)",
              "url": "https://pl.wikipedia.org/wiki/Linia_M1_metra_w_Warszawie"
            }
          ],
          "stationCount": 1
        },
        {
          "confidence": "high",
          "geometryRef": "warsaw-M1",
          "id": "warsaw-m1-2008-mlociny",
          "kind": "extension",
          "label": {
            "en": "Stage VIII: Słodowiec → Młociny (Stare Bielany, Wawrzyszew, Młociny) — line complete"
          },
          "notes": "Final three stations Stare Bielany, Wawrzyszew and Młociny opened, completing the 21-station M1 line after 25 years of construction.",
          "opened": "2008-10-25",
          "segment": {
            "fromStopIndex": 0,
            "toStopIndex": 3
          },
          "sources": [
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (PL)",
              "quote": "25 października 2008, po 25 latach budowy, zakończono prace nad I linią metra w Warszawie i uruchomiono jej trzy ostatnie stacje – Stare Bielany, Wawrzyszew i Młociny",
              "tier": "tertiary",
              "title": "Linia M1 metra w Warszawie — Wikipedia (PL)",
              "url": "https://pl.wikipedia.org/wiki/Linia_M1_metra_w_Warszawie"
            }
          ],
          "stationCount": 3
        }
      ],
      "sources": [
        {
          "accessedAt": "2026-07-14",
          "kind": "wikipedia",
          "publisher": "Wikipedia (PL)",
          "tier": "tertiary",
          "title": "Linia M1 metra w Warszawie — Wikipedia (PL)",
          "url": "https://pl.wikipedia.org/wiki/Linia_M1_metra_w_Warszawie"
        },
        {
          "accessedAt": "2026-07-14",
          "kind": "wikipedia",
          "publisher": "Wikipedia (EN)",
          "tier": "tertiary",
          "title": "Warsaw Metro — Wikipedia (EN)",
          "url": "https://en.wikipedia.org/wiki/Warsaw_Metro"
        }
      ]
    },
    {
      "cityId": "warsaw",
      "color": "#C8102E",
      "displayNumber": "M2",
      "id": "warsaw-line-M2",
      "name": {
        "en": "Line M2 (east–west)",
        "pl": "II linia metra"
      },
      "phases": [
        {
          "confidence": "high",
          "constructionStart": "2010",
          "cost": {
            "basis": "outturn",
            "confidence": "high",
            "nominal": {
              "currency": "PLN",
              "isEstimate": false,
              "value": 4170000000,
              "year": 2015
            },
            "notes": "Final construction outturn of the central section: 4.17 bln zł, of which 2.77 bln zł was co-financed by the EU Cohesion Fund (Infrastructure & Environment programme). Total project cost including rolling stock was 5.98 bln zł (rolling stock excluded here to keep infrastructure-only comparability).",
            "sources": [
              {
                "accessedAt": "2026-07-14",
                "kind": "other",
                "publisher": "Otwarta Warszawa",
                "quote": "Koszt inwestycji wyniósł 4,17 mld zł, z czego 2,77 mld zł finansowane było przez Unię Europejską w ramach Funduszu Spójności – Programu Infrastruktura i Środowisko. Całkowity koszt projektu z zakupem taboru wyniósł 5,98 mld zł",
                "tier": "secondary",
                "title": "Linia M2 metra w Warszawie — Otwarta Warszawa",
                "url": "https://otwartawarszawa.pl/przewodnik/linia-m2-metra-w-warszawie"
              }
            ]
          },
          "geometryRef": "warsaw-M2",
          "id": "warsaw-m2-2015-central",
          "kind": "initial",
          "label": {
            "en": "Central section: Rondo Daszyńskiego → Dworzec Wileński (initial M2 line)"
          },
          "notes": "Central section ~6.1 km, 7 stations (Rondo Daszyńskiego, Rondo ONZ, Świętokrzyska [M1 interchange], Nowy Świat-Uniwersytet, Centrum Nauki Kopernik, Stadion Narodowy, Dworzec Wileński). Physical preparatory works began 16 Aug 2010. Date note: some English/aggregator sources cite 4 Mar 2015, but that was a ceremonial/technical handover — 8 Mar 2015 is the public revenue-service opening.",
          "opened": "2015-03-08",
          "segment": {
            "fromStopIndex": 6,
            "toStopIndex": 12
          },
          "sources": [
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (PL)",
              "quote": "8 marca 2015 o godz. 9:30 centralny odcinek II linii metra został uruchomiony",
              "tier": "tertiary",
              "title": "Linia M2 metra w Warszawie — Wikipedia (PL)",
              "url": "https://pl.wikipedia.org/wiki/Linia_M2_metra_w_Warszawie"
            },
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (PL)",
              "quote": "16 sierpnia 2010 w rejonie stacji Rondo Daszyńskiego rozpoczęto prace przygotowawcze",
              "tier": "tertiary",
              "title": "Linia M2 metra w Warszawie — Wikipedia (PL) (preparatory works)",
              "url": "https://pl.wikipedia.org/wiki/Linia_M2_metra_w_Warszawie"
            },
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (EN)",
              "quote": "The initial segment of M2, measuring 6.3 kilometres ... with seven stations, connected Rondo Daszyńskiego to Dworzec Wileński and included the Świętokrzyska interchange station with M1.",
              "tier": "tertiary",
              "title": "M2 (Warsaw) — Wikipedia (EN)",
              "url": "https://en.wikipedia.org/wiki/M2_(Warsaw)"
            }
          ],
          "stationCount": 7
        },
        {
          "confidence": "high",
          "constructionStart": "2016",
          "cost": {
            "basis": "budget",
            "confidence": "high",
            "nominal": {
              "currency": "PLN",
              "isEstimate": false,
              "value": 1066741484,
              "year": 2016
            },
            "notes": "Construction CONTRACT value (gross) awarded to Astaldi S.p.A. for the eastern section: 1 066 741 483,79 zł brutto. This is the contract/authorized value, not a separately reported final outturn — hence basis 'budget'. Price level ~2016 (contract signing).",
            "sources": [
              {
                "accessedAt": "2026-07-14",
                "kind": "primary",
                "publisher": "ZTM Warszawa",
                "quote": "Astaldi S.p.A. ... wartość kontraktu 1 066 741 483,79 zł brutto; stacje Szwedzka (C16), Targówek (C17), Trocka (C18)",
                "tier": "primary",
                "title": "Druga linia metra – odcinek wschodni (Praga-Północ i Targówek) — ZTM Warszawa",
                "url": "https://www.ztm.waw.pl/inwestycje/druga-linia-metra-odcinek-wschodni-praga-polnoc-i-targowek/"
              }
            ]
          },
          "geometryRef": "warsaw-M2",
          "id": "warsaw-m2-2019-trocka",
          "kind": "extension",
          "label": {
            "en": "Eastern extension (\"3+3\"): Dworzec Wileński → Trocka"
          },
          "notes": "Added Szwedzka (C16), Targówek Mieszkaniowy (C17), Trocka (C18). Contract signed 11 Mar 2016; site handover late March 2016; TBM tunnelling from ~2017.",
          "opened": "2019-09-15",
          "segment": {
            "fromStopIndex": 3,
            "toStopIndex": 6
          },
          "sources": [
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (PL)",
              "quote": "Otwarcie odcinka wschodniego (do stacji Trocka) nastąpiło 15 września 2019",
              "tier": "tertiary",
              "title": "Linia M2 metra w Warszawie — Wikipedia (PL)",
              "url": "https://pl.wikipedia.org/wiki/Linia_M2_metra_w_Warszawie"
            }
          ],
          "stationCount": 3
        },
        {
          "confidence": "high",
          "cost": {
            "basis": "budget",
            "confidence": "high",
            "nominal": {
              "currency": "PLN",
              "isEstimate": false,
              "value": 1147999590,
              "year": 2016
            },
            "notes": "Construction CONTRACT value (gross) awarded to Gülermak for the western section: 1 147 999 590,00 zł brutto. Contract/authorized value, not a separately reported final outturn — basis 'budget'. Price level ~2016 (contract signing).",
            "sources": [
              {
                "accessedAt": "2026-07-14",
                "kind": "primary",
                "publisher": "Miasto Stołeczne Warszawa",
                "quote": "Wykonawcą odcinka zachodniego jest ... turecka firma Gülermak ... kwota kontraktu wynosi 1.147.999.590,00 zł brutto ... Umowę ... podpisano 29 września 2016 roku",
                "tier": "primary",
                "title": "Umowa na budowę zachodniego odcinka metra podpisana — Miasto Warszawa",
                "url": "https://um.warszawa.pl/-/umowa-na-budowe-zachodniego-odcinka-metra-podpisana"
              }
            ]
          },
          "geometryRef": "warsaw-M2",
          "id": "warsaw-m2-2020-ksiecia-janusza",
          "kind": "extension",
          "label": {
            "en": "Western extension (\"3+3\"): Rondo Daszyńskiego → Księcia Janusza"
          },
          "notes": "Added Płocka (C08), Młynów (C07), Księcia Janusza (C06), ~3.4 km. Contract signed 29 Sept 2016 (38-month term). constructionStart omitted: only contract/permit dates are documented, not a cleanly-dated physical-works start.",
          "opened": "2020-04-04",
          "segment": {
            "fromStopIndex": 12,
            "toStopIndex": 15
          },
          "sources": [
            {
              "accessedAt": "2026-07-14",
              "kind": "wikipedia",
              "publisher": "Wikipedia (PL)",
              "quote": "Odcinek zachodni został uruchomiony 4 kwietnia 2020 roku ... trzy stacje: C6 Księcia Janusza, C7 Młynów, C8 Płocka",
              "tier": "tertiary",
              "title": "Linia M2 metra w Warszawie — Wikipedia (PL)",
              "url": "https://pl.wikipedia.org/wiki/Linia_M2_metra_w_Warszawie"
            }
          ],
          "stationCount": 3
        },
        {
          "confidence": "high",
          "cost": {
            "basis": "budget",
            "confidence": "high",
            "nominal": {
              "currency": "PLN",
              "isEstimate": true,
              "value": 959000000,
              "year": 2018
            },
            "notes": "Reported investment value of the Wola–Bemowo section as 'over 959 mln zł' (~70% EU-financed) — an approximate value ('>959 mln'), hence isEstimate=true and basis 'budget'. Price level ~2018 (contract signing).",
            "sources": [
              {
                "accessedAt": "2026-07-14",
                "kind": "primary",
                "publisher": "ZTM Warszawa",
                "quote": "dwie stacje ... Ulrychów i Bemowo ... wartość inwestycji przekracza 959 mln zł, z czego blisko 70% finansowane jest ze środków UE; umowę podpisano 15 listopada 2018",
                "tier": "primary",
                "title": "Druga linia metra – odcinek zachodni (Bemowo) — ZTM Warszawa",
                "url": "https://www.ztm.waw.pl/inwestycje/druga-linia-metra-odcinek-zachodni-bemowo-wraz-z-zapleczem-technicznym/"
              }
            ]
          },
          "geometryRef": "warsaw-M2",
          "id": "warsaw-m2-2022-bemowo",
          "kind": "extension",
          "label": {
            "en": "Western extension (\"3+5\"): Księcia Janusza → Bemowo"
          },
          "notes": "Added Ulrychów (C05) and Bemowo (C04), ~2.5 km. Contract signed 15 Nov 2018 (Gülermak + Astaldi consortium). Physical construction started 2019 (not precisely dated), so constructionStart omitted.",
          "opened": "2022-06-30",
          "segment": {
            "fromStopIndex": 15,
            "toStopIndex": 17
          },
          "sources": [
            {
              "accessedAt": "2026-07-14",
              "kind": "primary",
              "publisher": "Miasto Stołeczne Warszawa",
              "quote": "30 czerwca 2022 miało miejsce oddanie do użytku stacji: Ulrychów i Bemowo",
              "tier": "primary",
              "title": "Coraz bliżej uruchomienia odcinka II linii metra na Bemowie — Miasto Warszawa",
              "url": "https://um.warszawa.pl/-/coraz-blizej-uruchomienia-odcinka-ii-linii-metra-na-bemowie"
            }
          ],
          "stationCount": 2
        },
        {
          "confidence": "high",
          "cost": {
            "basis": "budget",
            "confidence": "high",
            "nominal": {
              "currency": "PLN",
              "isEstimate": false,
              "value": 1397895000,
              "year": 2019
            },
            "notes": "Construction CONTRACT value for the eastern-northern extension: 1 397 895 000 zł (Astaldi + Gülermak consortium). Contract/authorized value, not a separately reported final outturn — basis 'budget'. Price level ~2019 (contract).",
            "sources": [
              {
                "accessedAt": "2026-07-14",
                "kind": "primary",
                "publisher": "ZTM Warszawa",
                "quote": "wartość kontraktu 1 397 895 000 zł ... konsorcjum Astaldi i Gülermak ... 36 miesięcy; stacje C19 Zacisze, C20 Kondratowicza, C21 Bródno",
                "tier": "primary",
                "title": "Druga linia metra – odcinek wschodni (Bródno) — ZTM Warszawa",
                "url": "https://www.ztm.waw.pl/inwestycje/druga-linia-metra-odcinek-wschodni-2/"
              }
            ]
          },
          "geometryRef": "warsaw-M2",
          "id": "warsaw-m2-2022-brodno",
          "kind": "extension",
          "label": {
            "en": "Eastern extension (\"3+5\"): Trocka → Bródno"
          },
          "notes": "Added Zacisze (C19), Kondratowicza (C20), Bródno (C21). Astaldi + Gülermak consortium, 36-month term; TBM tunnelling began ~May 2020. constructionStart omitted as the physical-works start is not cleanly dated in sources.",
          "opened": "2022-09-28",
          "segment": {
            "fromStopIndex": 0,
            "toStopIndex": 3
          },
          "sources": [
            {
              "accessedAt": "2026-07-14",
              "kind": "news",
              "publisher": "muratorplus.pl",
              "quote": "Trzy stacje – Zacisze, Kondratowicza i Bródno – zostały otwarte 28 września 2022",
              "tier": "secondary",
              "title": "II linia metra na Bródno otwarta 28 września 2022! — muratorplus.pl",
              "url": "https://www.muratorplus.pl/inwestycje/inwestycje-publiczne/ii-linia-metra-otwarcie-bemowo-pociagi-juz-jezdza-metro-na-bemowo-i-brodno-aa-tMhs-7aav-FEmE.html"
            }
          ],
          "stationCount": 3
        }
      ],
      "sources": [
        {
          "accessedAt": "2026-07-14",
          "kind": "wikipedia",
          "publisher": "Wikipedia (PL)",
          "tier": "tertiary",
          "title": "Linia M2 metra w Warszawie — Wikipedia (PL)",
          "url": "https://pl.wikipedia.org/wiki/Linia_M2_metra_w_Warszawie"
        },
        {
          "accessedAt": "2026-07-14",
          "kind": "wikipedia",
          "publisher": "Wikipedia (EN)",
          "tier": "tertiary",
          "title": "M2 (Warsaw) — Wikipedia (EN)",
          "url": "https://en.wikipedia.org/wiki/M2_(Warsaw)"
        }
      ]
    }
  ],
  "name": {
    "en": "Warsaw",
    "pl": "Warszawa"
  }
}