Bogota Metro Line 1 Opens

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• Transport09/14/2026@BuildDesk

  Bogotá Metro Line 1 Targets 2028 Opening

  Bogotá, Colombia

  

  Starts 03/15/2028ESTIMATED69% CONFIDENCEin 1.5 yearsA target, per the source^[1]: "Bogotá Mayor Carlos Fernando Galán has confirmed that the first passengers will be able to ride Line 1 of the Metro on March 15, 2028," with construction 60% complete as of mid-2025.

  After more than 80 years of proposals, Bogotá's first metro line, an elevated 24km driverless railway, is targeted to carry its first passengers in 2028.

  $4B

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• Transport09/14/2026@BuildDesk

  Thessaloniki Metro Line 1 Opens After Decades of Delay

  Venizelou Metro Station, Thessaloniki, Greece

  

  Starts 11/30/2024CONFIRMED90% CONFIDENCE1.8 years agoHappened as dated, per the source^[1]: "was officially opened on Saturday by Prime Minister Kyriakos Mitsotakis."

  Greece's Thessaloniki Metro Line 1 opened to the public, a driverless 9.6km line whose stations doubled as archaeological digs after more than 300,000 ancient artefacts were uncovered during construction.

  €3B

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• Transport09/20/2026@BuildDesk

  Mexico City Metro Line 1 Fully Reopens After Its Rebuild

  Pantitlán, Iztacalco, Mexico City, MexicoSistema de Transporte Colectivo

  

  Starts 11/16/2025CONFIRMED90% CONFIDENCE311 days agoRailway Gazette^[1] reports the line reopening in full on "November 16" 2025, a fixed day now past.

  The 19-kilometre, 20-station Line 1 returned to service end to end after a stage-by-stage closure for CRRC's System+ modernisation, which brought new trains, Siemens CBTC signalling and a rebuilt Observatorio station with 13 lifts. Railway Gazette puts the PPP concession behind the work at 32.2 billion pesos.

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• Transport09/15/2026@BuildDesk

  Paris Métro Opens Its First Line

  Porte Maillot, Paris, FranceRATP

  

  Starts 07/19/1900CONFIRMED85% CONFIDENCE126.2 years agoRATP's^[3] own history page and EarthSky's^[2] science-history article both give 19 July 1900 as the inauguration date of the first métro line.

  The Paris Métro's first line opened to the public on 19 July 1900, running between Porte Maillot and Château de Vincennes.

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• Transport09/11/2026@ThePinGang

  Ontario Line Opens in Toronto

  Toronto, OntarioMetrolinx

  

  Starts 09/01/2031ESTIMATED62% CONFIDENCEin 4.9 yearsGiven as a target, not a fixed date, per en.wikipedia.org^[1]: "…, Plenary Americas, and Webuild) with a projected in-service date of 2031.[37] The contract was valu…"

  A 15.6 km automated subway across Toronto with 15 stations, built to relieve the overloaded Line 1. Estimated date.

  C$34B

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• Transport09/15/2026@BuildDesk

  Metropolitan Railway Opens the World's First Underground Line

  Paddington to Farringdon, London, United KingdomMetropolitan Railway

  

  Starts 01/10/1863CONFIRMED82% CONFIDENCE163.7 years agoThe London Transport Museum and Britannica^[2] both date the Metropolitan Railway's opening between Paddington and Farringdon to January 10, 1863.

  The Metropolitan Railway opened between Paddington and Farringdon on January 10, 1863, the world's first underground railway and the ancestor of every metro system shown in Moving Millions Every Day.

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• Transport09/15/2026@BuildDesk

  Madrid–Barcelona High-Speed Line Opens, Completing Spain's Flagship AVE Corridor

  Barcelona Sants railway station, Barcelona, SpainAdif

  

  Starts 02/20/2008CONFIRMED80% CONFIDENCE18.6 years agoWikipedia's^[3] Madrid–Barcelona high-speed rail line article gives 20 February 2008 as the date the complete line opened, after the Madrid–Zaragoza–Lleida section opened in October 2003.

  Adif's Madrid–Barcelona high-speed line opened in full on 20 February 2008, cutting the 621km journey to about 2 hours 30 minutes and becoming the backbone of the AVE network that engineering crews are now upgrading for 350km/h running.

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• Transport09/20/2026@BuildDesk

  Metro's D Line Subway Extension Opens Its First Three Stations

  Wilshire/La Cienega station, Wilshire Blvd at La Cienega Blvd, Beverly Hills, CA 90211Los Angeles County Metropolitan Transportation Authority

  

  Starts 05/08/2026CONFIRMED90% CONFIDENCE138 days agoMetro's^[1] own project page says of Section 1, "This Opened on May 8, 2026."

  LA Metro opened Section 1 of the D Line subway extension, carrying the Wilshire Boulevard subway 3.9 miles west of Wilshire/Western to new stations at La Brea, Fairfax and La Cienega. It is the line's first extension since 1996 and the first of three sections Metro wants running before the 2028 Olympics.

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• Transport09/20/2026@BuildDesk

  First Section of São Paulo's Line 6-Orange Opens for Trial Service

  Água Branca, São Paulo, BrazilAcciona

  

  Starts 07/02/2026CONFIRMED90% CONFIDENCE83 days agoThe report states that "the first 5.2 km section of São Paulo's metro network's Line 6 (Orange) opened on July 2".^[1]

  Six stations opened along a 5.2 km stretch between João Paulo I and Perdizes, among them Água Branca, which at 47.8 metres is the deepest metro station in South America. Trains run on weekdays from 10.00 to 15.00 and are free for now; the finished line is to run 15.3 km with 15 stations from Brasilândia to São Joaquim.

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• Transport09/15/2026@BuildDesk

  Second Avenue Subway Phase One Opens as World's Priciest Subway

  2nd Ave & E 96th St, Manhattan, New York

  

  Starts 01/01/2017CONFIRMED90% CONFIDENCE9.7 years agoHappened as dated, per the source^[1]: "The first phase of this new line, with three new stations on Manhattan's Upper East Side, opened on January 1, 2017."

  New York opened the first phase of the Second Avenue Subway, a century-delayed project that became the world's most expensive subway on a per-mile basis.

  $4.45

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• Transport09/15/2026@BuildDesk

  Elizabeth Line's Tottenham Court Road Station Opens

  Tottenham Court Road Elizabeth Line Station, London, UKTransport for London

  

  Starts 05/24/2022CONFIRMED90% CONFIDENCE4.3 years agoConfirmed against contemporary reporting on the central section's opening. Happened as dated, per the source^[1]: "The Elizabeth line opened on Tuesday 24 May 2022".

  London's £18.9BN Elizabeth Line opens through central London, bringing its new Tottenham Court Road station into service after years of Crossrail tunnelling and delay.

  £18.9B

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• Transport09/20/2026@BuildDesk

  Jurong Region Line Stage 1 Opens in Singapore's West

  Tengah, SingaporeLand Transport Authority

  

  Starts 06/30/2028DELAYED6 months late40% CONFIDENCEin 1.8 yearsLTA's^[1] March 2026 rail factsheet says "Stage 1 of the JRL will open around mid-2028, instead of the initial end-2027 timeline", so the day here stands for mid-2028.

  The first stage of Singapore's fully elevated, driverless Jurong Region Line opens, serving Tengah and the western estates around Choa Chu Kang. LTA pushed the opening back by about six months after viaduct construction over the Pan-Island Expressway could only be carried out during overnight road closures, and will run interim shuttle buses from end-2027 until the line opens.

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