List of transport megaprojects

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by editing the page to add missing items, with references to reliable sources.

This is a list of megaprojects within the transport sector. Take care in comparing the cost of projects from different times—even a few years apart—due to inflation; comparing nominal costs without taking this into account can be highly misleading. Note that inflation-calculated values are current as of 2023 ^[update] .

According to the Oxford Handbook of Megaproject Management in 2017, "Megaprojects are large-scale, complex ventures that typically cost $1 billion or more, take many years to develop and build, involve multiple public and private stakeholders, are transformational, and impact millions of people." ^[1]

Completed projects

Project	Description	Country	Location	Est. cost (USD billions)		Start of construction	Year of completion	Image	Notes
				At or near time of completion	Adjusted for inflation
Tokaido Shinkansen	High-speed rail	Japan	Taiheiyō Belt	1.06 [2]	7.96	1959	1964	Map of Tokaidō Shinkansen	Original segment of the first shinkansen line
Çanakkale 1915 Bridge	Bridge (road)	Turkey	Çanakkale	4 [3]	4.44	2017	2022		Spans two continents. Longest suspension bridge span in the world. [4]
Sha Tin to Central Link	Rapid transit	Hong Kong	Hong Kong, From Tai Wai, New Territories to Admiralty, Hong Kong Island	11.6 [5]	13	2012	2022		HK$ 90.7 billion [5]
La Línea Tunnel	Tunnel (road)	Colombia	Cordillera Central	0.27 [6]	0.31	2009	2020	Cross-section of the tunnel
Thameslink Programme	Commuter rail upgrade	United Kingdom	Southeast England	8.97 [7]	10.4	2009	2020	Blackfriars Underground station work site	(GBP7bn) [7]
Alaskan Way Viaduct replacement tunnel	Tunnel (road)	United States	Seattle	3.3 [8]	3.9	2013	2019
Santiago Metro Line 3, Phase One and 2023 extension.	Rapid transit	Chile	Santiago	2.17 [9] [10]	2.41	2012	2023		Combined cost of initial line and extension. [9] [10]
Santiago Metro Line 6	Rapid transit	Chile	Santiago	1.26 [11]	1.54	2014	2017	Map of Line 6
Crimean Bridge	Bridge (rail/road)		Russia (one end is recognized internationally as being owned by Ukraine, but is de facto controlled by Russia)	3.7 [12]	4.4	2015	2019
Hong Kong–Zhuhai–Macau Bridge	Bridge–tunnel	China	Hong Kong, Zhuhai, and Macau	19.2 [13]	23	2009	2018		¥127 billion
New Tappan Zee Bridge	Bridge (road)	United States	South Nyack to Tarrytown, New York	3.98 [14]	4.76	2013	2018
Tel Aviv–Jerusalem railway	Railway	Israel	Jerusalem, Israel	1.9–2.5 [15]	2.3–3	2001	2004 (first section) 2007 (second section) 2018 (final section)		NIS7-9 billion [15]
Abuja Light Rail (phase 1 nearing completion) [ when? ] [16]	Light Rail	Nigeria	Abuja	2.7 [16] [17]	3.2	2007	2018
Noord/Zuidlijn	Rapid transit line	Netherlands	Amsterdam	4.32 [18]	5.96	2002	2018		(€3.1bn)
Klang Valley MRT Line 1	Rapid transit	Malaysia	Kuala Lumpur	11.7 [19]	15.4	2012	2017		(MYR36B)
Ionia Odos	Highway	Greece	Western Greece	1.8 [20]	2.3	2007	2017		(€1.4bn)
Otoyol 5	Highway	Turkey	Istanbul to İzmir	7 [21]	8.2	2013	2019		Including Osman Gazi Bridge which has the 8th longest suspension bridge span in the world. [22]
German Unification Transport Projects (Verkehrsprojekt Deutsche Einheit)	Transport project to achieve German unity	Germany	Germany	42 [23]	51.4	1991	2016 – continues expansion until 2020
AVE - Spain's high-speed railway network	High-speed rail	Spain	Spain	44 [24]	55.8	1992	2016 - continues expansion		40 [24] billion euros
Yavuz Sultan Selim Bridge	Bridge (rail/road)	Turkey	Istanbul	2 [25]	2.6	2013	2016		World's fifth-tallest bridge of any type. [26]
Evergreen Point Floating Bridge	Bridge (road)	United States	Seattle and Medina, Washington	4.56 [27]	5.68	2012	2016
Eurasia Tunnel	Tunnel (undersea, road)	Turkey	Istanbul	1.3 [28]	1.6	2011	2016		Spans two continents.
Gotthard Base Tunnel	Tunnel (rail)	Switzerland	Swiss Alps	9.7 [29]	12.1	1999	2016		(CHF 9.56 billion) [29]
World Trade Center Transportation Hub	Transit center and retail	United States	New York City	3.9 [30]	4.9	2006	2016
Blanka tunnel complex	Tunnel (road)	Czechia	Prague	1.75 [31]	2.2	2006	2015		43bn Kč [31]
Adler–Krasnaya Polyana road and railway	Highway and railway	Russia	Russia	9.4 [32]	11.9	2010	2014
Budapest Metro Line 4	Rapid transit line	Hungary	Budapest	1.95 [33] [34]	2.52	2004	2014		(HUF 452.5 bn)
Marina Coastal Expressway	Highway	Singapore	Singapore	3.4 [35] [36]	4.4	2008	2013 [37]		(S$4.3 bn)
Marmaray Tunnel	Tunnel (undersea, rail)	Turkey	Istanbul	4.5 [38]	5	2004	2008(Phase I) 2013(Phase II)		Deepest immersed tube tunnel in the world.
Eastern span replacement of the San Francisco–Oakland Bay Bridge	Bridge (road)	United States	San Francisco Bay Area	6.5 [39]	8.4	2002	2013
Russky Bridge	Bridge (road)	Russia	Vladivostok (Muravyov-Amursky Peninsula) and Russky Island	1.1 [40]	1.4	2008	2012
Freeway Durango-Mazatlán and Baluarte Bridge	Highway and road bridge	Mexico	Durango – Sinaloa	1.46 [41] [42]	1.9	2008	2012
Jiaozhou Bay Bridge	Bridge (road)	China	Shandong	1.5 [43]	2	2007	2011
Beijing–Shanghai high-speed railway	High-speed rail	China	Eastern China (Beijing to Shanghai, via Tianjin and Nanjing)	33.1 [44]	44.2	2008	2011		(RMB 220.9bn)
Clem Jones Tunnel	Tunnel (road)	Australia	Brisbane	3.3 [45]	4.4	2006	2010
CBD and South East Light Rail	Light rail	Australia	Sydney	2.2 [46]	2.6	2015	2019
Wuhan–Guangzhou high-speed railway	High-speed rail	China	China	17.1 [47]	23.6	2005	2009		(RMB 116.6bn)
Egnatia Odos	Highway	Greece	Northern Greece	8.4 [48]	11.6	1994	2009		(€5.9bn)
Incheon Bridge	Bridge (road)	South Korea	Incheon	2.12 [49]	2.9	2005	2009		(₩ 2.45 trillion; source listed that as being equivalent to US$2.12 billion)
Sound Transit '1 line' (initial segment)	Light rail	United States	Seattle metropolitan area	2.9 [50]	4	2003	2009
Bologna–Florence high-speed railway	High-speed rail	Italy	Italy	7.8 [51]	10.6	1996	2009		(€5.89 billion) [51]
Milan–Bologna high-speed railway	High-speed rail	Italy	Italy	9.2 [51]	12.6	1993	2008		(€6.92 billion) [51]
Beijing–Tianjin intercity railway	High-speed rail	China	Beijing and Tianjin [52]	2.34 [53]	3.3	2005	2008
High Speed 1	High-speed rail	United Kingdom	South East England	13.7 [54]	19.4	1998	2007	Map overview of the rail's route	(£6.84 billion) [54]
Lötschberg Base Tunnel (initial bore)	Tunnel (rail)	Switzerland	Swiss Alps	3.6 [55]	5.1	1999	2007		(CHF 4.3 billion) [55]
Copenhagen Metro phase 1-3	Rapid transit	Denmark	Copenhagen	1.47 [56]	2.1	1996	2007		11,400,000,000 DKK
"Big Dig" Central Artery/Tunnel Project	Tunnel (road)	United States	Boston	22 [57]	30.6	1991	2007		14.6 billion USD; additional $7 billion in interest
Colorado T-REX Project (TRansportation EXpansion)	Highway & Light rail upgrade	United States	Denver	1.7 [58]	2.5	2001	2006
Shanghai Maglev Train	High-speed rail, Maglev	China	Shanghai	1.4 [59]	2.2	2001	2004
Red Line and Purple Line	Rapid transit	United States	Los Angeles	4.5 [60]	7.6	1986	2000		represents expenditure prior to the D Line Extension
Toei Ōedo Line	Rapid transit	Japan	Tokyo	8.68 [61]	14.9	1988	2000		(¥988.6 billion in 1999 yen values)
Jubilee Line Extension	Rapid transit line	United Kingdom	London	6.83 [62]	9.32	1993	1999		3.5 billion GBP 6.83 billion USD is for 2010 prices [62]
Honshu-Shikoku Bridge Project	Bridges 17 bridges connecting the islands of Honshū and Shikoku	Japan	Japan	48 [63]	82.6	1978	1999		4 trillion Yen
Øresund Bridge	Bridge–tunnel (rail/road)	Denmark, Sweden	Denmark - Sweden	5.7 [64]	9.8	1995	1999		(DKK30.1bn)
Great Belt Fixed Link	Bridge–tunnel (rail/road)	Denmark	Denmark	3.2	7.1	1988	1998		(DKK21.4bn) [65]
Vasco da Gama Bridge	Bridge (road)	Portugal	Lisbon	1.3 [66]	2.4	1995	1998		(€897m / 180bn PTE)
Akashi-Kaikyō Bridge	Bridge (road)	Japan	Kobe	5 [67]	8.7	1988	1998
Channel Tunnel	Tunnel (undersea, rail)		Strait of Dover, English Channel between the United Kingdom and France	15.4 [68]	28.7	1988	1994		(GBP9.5bn)
Interstate Highway System	Highway Network	United States	United States	114 [69]	608	1956	1992 [70] [71]		425 billion in 2006 dollars [72] 548 billion in 2021 dollars [73]
Baikal–Amur Mainline	Railway	Soviet Union (modern-day Russia)	Sovetskaya Gavan to Tayshet (modern-day Russia)	15 [74]	37.2	1974	1984
Bay Area Rapid Transit	Rapid transit	United States	San Francisco Bay Area	1.586 [75]	6.6	1964	1976 - continues expansion		$11.9 billion adjusted for inflation
St. Lawrence Seaway	Canal system	United States, Canada	St Lawrence River and North American Great Lakes between the United States and Canada	0.470 [76]	3.8	1954	1959
Caracas-La Guaira highway	Highway	Venezuela	Greater Caracas	0.06 [77] [78]	0.5	1950	1953
Trans-Siberian Railway	Railway	Russian Empire (modern-day Russia)	Moscow to Russian Far East (Vladivostok) (modern-day Russia)	0.770 [79]	14.9	1891	1916
Panama Canal	Canal	Panama	Panama	0.375 [80]	8.4	1881	1914
First transcontinental railroad	Railway	United States	Omaha, Nebraska, to Sacramento, California	0.1 [81]	2	1863	1869		$2.03 billion adjusted for inflation
Suez Canal	Canal	Khedivate of Egypt (modern-day Egypt)	Sinai Peninsula, Khedivate of Egypt (modern-day Egypt)	0.082 [82]	1.7	1859	1869
Suez Canal expansion	Canal expansion	Egypt	Sinai Peninsula	8 [83]	10.1	2014	2015
Silver Line	Rapid transit	United States	Northern Virginia	6 [84]	6.7	2009	2014 (Phase 1) 2022 (Phase 2)	WMATA Alstom 6000 Series On The Silver Line	While the Silver Line runs through Maryland and through Washington, D.C., the actual new sections of railway were all located in Northern Virginia.
Mid-Coast Extension of the Blue Line (San Diego Trolley)	Light rail	United States	San Diego	2.17 [85] [86]	2.41	2016	2021
Green Line Extension	Light rail	United States	Greater Boston	2.28 [87]	2.5	2012	2022	The new Lechmere station under construction in May 2020
Highway Vespucio Oriente	Tunnel (road)	Chile	Santiago	1.1	1.2	2017	2022
East Side Access project (including Grand Central Madison station)	Transit center, commuter rail	United States	New York City	11.1 [88]	12.3	2007	2023		The East Side Access project, including Grand Central Madison station, allows Long Island Rail Road service to Grand Central Terminal.
Taichung Metro	Rapid transit	Taiwan	Taichung	2.08 [89]	2.41	2009	2021
Almaty Metro	Rapid transit	Kazakhstan	Almaty	1 [90]	1.3	1988 (was temporarily suspended as a result of the collapse of the Soviet Union)	2011
Dubai Metro	Rapid transit	United Arab Emirates	Dubai	7.62 [91]	10.52		2009
Canada Line	Rapid transit	Canada	Greater Vancouver	1.79 [92]	2.47	2005	2009	Canada Line (sky blue) as part of the Metro Vancouver transit system in 2016	$2.05 billion CAD – set as the value for 2009, though estimate was originally made in 2006
Second Avenue Subway, Phase 1	Rapid transit	United States	New York City	4.4 [93]	5.5	2007	2017		Inflation is based on 2016, as the line opened on January 1 of 2017; construction was thus technically completed before then.
Silicon Valley BART extension, Phase I	Rapid transit	United States	San Francisco Bay Area	2.3 [94]	2.7	2012	2020
Algiers Metro (original section of Line 1)	Rapid transit	Algeria	Algiers	1.2 [95]	1.6	1982 (was suspended for a time)	2011
Changsha Metro, Line 2	Rapid transit	China	Changsha	1.8 [96]	2.2	2009	2014
Doha Metro	Rapid transit	Qatar	Doha	36 [97] [98]	42.3	2013	2019
Mombasa–Nairobi Standard Gauge Railway	Railway	Kenya	Mombasa Nairobi Naivasha	5.3 [99]	6.2	2013	2019		Original phase: $3.8bn and extension: 1.5bn [99]
Edinburgh Trams	Light rail	United Kingdom	Edinburgh	1.72 [100]	2.18	2008	2014		(£1.043bn) [100]
Padma Bridge	Bridge (rail/road)	Bangladesh	Padma River	3.6 [101]	4	2014	2022
Woodrow Wilson Bridge	Bridge (Bascule)	United States	Washington metropolitan area	2.357 [102]	3.04	2000	2013
Verrazzano-Narrows Bridge (original/upper deck)	Bridge (road)	United States	New York City	0.320 [103]	2.4	1959	1964
AirTrain JFK	People mover	United States	New York City	1.9 [104]	3	1998	2003		While it does serve passengers within JFK, it was primarily built for transport between the airport and the city.
Taiwan High Speed Rail	High-speed rail	Taiwan	Taiwan	14.63 [105]	20.72	2000	2007		480.6 billion converted to USD in 2007 dollars is $14.63 billion. [106]
Goethals Bridge (replacement)	Bridge (road)	United States	New York City and New Jersey	1.25 [107]	1.49	2014	2017 (New eastbound span) 2018 (New westbound span)
Danyang-Kunshan Grand Bridge	Bridge (rail)	China	Shanghai and Nanjing	8.5 [108]	11.36	2006	2011 (construction ended in 2010; opened in 2011)
Bolshaya Koltsevaya line	Rapid transit	Russia	Moscow	8.59 [109]	10.5	2011	2023
Seikan Tunnel	Tunnel (undersea, rail)	Japan	Tsugaru Strait	8.58 [110]	19.1	1971	1988
Rennes Metro Line B	Rapid transit	France	Rennes	1.405 [111]	1.56	2014	2022	Line B in green	€1.342 billion converted to USD based on average rate for 2022
Paris Métro Line 14 (original segment)	Rapid transit	France	Paris	1.2682 [112]	1.961	1993	2007		Inflation clock starting in 2004
Crossrail 1	Commuter rail, Rapid transit	United Kingdom	Greater London	23.0 [113]	25.5	2007	2023 [114]		A new 73m (117 km) railway line in England, serving London, Berkshire, Buckinghamshire & Essex. Core section opened May 24, 2022, full integration of routes and completion expected by May 2023. [114]
Regional Connector	Light rail tunnel	United States	Downtown Los Angeles	1.8 [115]	1.9	2014	2023
IRT Broadway–Seventh Avenue Line	Rapid transit	United States	New York City	0.06 [116]	1.44	1900	Complete line: 1908
Lekki Port	Seaport	Nigeria	Lekki	1.5 [117]	1.6	2015	2023
Ohio River Bridges Project	Bridges and interchange reconfiguration	United States	Louisville metropolitan area	2.3 [118]	2.78	2014	2017		A new motorway project near Louisville, Kentucky. Major works included two new bridges across the Ohio River; a short tunnel section; and reconstruction of interchange ramps.
Lagos Rail Mass Transit	Rapid transit, Commuter rail	Nigeria	Lagos	3.6 [119] [120]	3.7	2009	2023 (Blue Line) 2024 (Red Line)
Upgrades to Metro-North Railroad's Harmon Shop at Croton-on-Hudson	Improvements to a maintenance and operations hub	United States	Croton-on-Hudson, New York	1.1 [121]	1.1	2001 [122]	2024 [122]
Milan Metro Line 4	Rapid transit	Italy	Milan	2.24 [123]	2.6	2014 [124]	2022 (Phase One) 2023 (Phase Two) 2024 (Phase Three)	Map of the M4 line	Roughly €1.9 billion as of April 2020 [update] .
Caltrain Modernization Program (CalMod)	Commuter rail	United States	San Francisco Bay Area	2.44 [125]	2.44	2017	2024
Parramatta Light Rail, Stage 1	Light rail	Australia	Parramatta, New South Wales	1.94 [126]	1.94	2018 [127]	2024 [126]
WestConnex	Tunnel (road)	Australia	Sydney	11.3 [128]	11.3	2015 [128]	2024 [129]
Yaxi Expressway	Highway	China	Ya'an to Xichang	3.3 [130]	4.3	2007	2012		Unclear whether the $3.3 bn estimate was in 2007 dollars or 2012 dollars
Sydney Metro Northwest	Rapid transit	Australia	Sydney	5.2 [131]	6.1	2014	2019	Map of Sydney North Western Line and the City and South Western Line overlayed on top of the existing rail network	Extended south to the CBD in 2024 by Sydney Metro City & Southwest.
Cairo Metro Line 3, Phase 3	Rapid transit	Egypt	Cairo	2.6 [132]	2.9	2017	2024	Line 3 shown in green	Entire Line 3 costs more
Line 2 South Expansion	Light rail	Canada	Ottawa	3.5 [133]	3.6	2019	2024		4.72 billion CAD
Ho Chi Minh City Metro, Line 1	Rapid transit	Vietnam	Ho Chi Minh City	2.5 [134]	2.5	2012	2024 [134]	Line 1 in red; remaining lines in planning stage or on hold
Riyadh Metro	Rapid transit	Saudi Arabia	Riyadh	22.5 as of July 2013 [update] [135]	31.2	2014	2024		There were disputes regarding at least $1 billion in 2022; as of January 2023 [update] , it is unclear if/how that affected the overall cost. [136]

Partially completed and open

Project	Description	Country	Location	Est. cost (in billions USD) at or near time of completion	Est. cost (in billions USD), adjusted for inflation	Start of construction	Year of completion	Image	Notes
Sydney Metro City & Southwest	Rapid transit	Australia	Sydney	14.5 [137]	14.5	2017	Completed 2024 (City) Expected Late 2025 (Southwest)		Extends Sydney Metro Northwest from Chatswood to Bankstown via the CBD
O-Train Line 1	Light rail	Canada	Ottawa	5.1 [138]	6	2013 [139]	Completed 2019 (stage 1) Expected 2026 (stage 2)		$2.1 billion + $4.66 billion CA$ [138]
Lusail Tram	Light rail	Qatar	Lusail	2.7as of 2014 [update] [140]	3.4	2016	Completed 2022 (First part of orange line) Expected Unclear timeline for rest of lines/stations
Hyderabad Metro	Rapid transit	India	Hyderabad	2.4 as of November 2017 [update] [141]	2.9	2012	Completed 2018 (First stretch) 2020 (Second stretch) Expected Unclear timeline for rest of lines/stations
Trans-Sumatra Toll Road	Highway	Indonesia	Sumatra	33.2 [142]	36.8	2014	Completed Several segments at varying times (2019-2022) Expected 2023, 2024 (Remaining segments)
K Line	Light rail	United States	Los Angeles	2.1 [143]	2.3	2014	Completed 2022 (first section) Expected 2024 (rest of line)
Skyline	Railway	United States	Oʻahu	12.4 [144]	13.8	2011	Completed 2023 (Phase 1) Expected 2025 (Phase 2) 2031 (Phase 3)
El Insurgente	Commuter rail	Mexico	State of Mexico; Mexico City	2.8 [145]	3.2	2015	Completed 2023 (Zinacantepec to Lerma) 2024 (Lerma to Santa Fe) Expected 2025 (Santa Fe to Observatorio)
Kınalı-Balıkesir Motorway	Highway	Turkey	Tekirdağ to Balıkesir	2 [146]	2.5	2017	Completed 2023 (Malkara-Lapseki) Expected 2024 (remaining phases)
A-1 motorway	Highway	Montenegro	Montenegro	3.7 [147] [148]	3.8	2015 [149]	Completed 2023 (first 43 km section) Expected 2024 (Andrijevica segment)		(2.77 billion €)
Réseau express métropolitain	Light rail, Rapid transit	Canada	Montreal	5.5 [150]	6.1	2018	Completed 2023 (first segment) Expected 2027 [151]		67 km of rails, 26 stations, automated light metro. Cost estimated in June 2021 to be CA$6.9 billion.
Tel Aviv Light Rail	Light rail	Israel	Tel Aviv	5.8 [152] [153]	6.4	2011	Completed 2023 (Red Line) Expected 2028		NIS18.8 billion
Thessaloniki Metro	Rapid transit	Greece	Thessaloniki	3.24 [154]	4.3	2006	Completed 2024 (Line 1) [155] Expected 2025 (Line 2)

Under construction

Project	Description	Country	Location	Approximate cost (in billions USD)	Start of construction	Planned year of completion	Image	Notes
West Gate Tunnel	Tunnel (road)	Australia	Melbourne	7.4 [156]	2018	2025	The future location of an entrance to the proposed West Gate Tunnel in Yarraville, Melbourne
North East Link	Tunnel (road)	Australia	Melbourne	17.5 [156]	2020	2028
Sydney Metro Western Sydney Airport	Rapid transit	Australia	Sydney	8 [157]	2022	2027
Western Harbour Tunnel	Tunnel (road)	Australia	Sydney	5 [158]	2021	2028
Sydney Metro West	Rapid transit	Australia	Sydney	17 [159]	2020	2032	Sydney Metro West geotechnical survey locations
Silver Line	Commuter rail	United States	Dallas	1.9 [160]	2020	2026		Also known as the "Cotton Belt Line"
Purple Line	Light rail	United States	Maryland suburbs of Washington, D.C.	3.4 [161]	2017 (halted in 2020); resumed in 2022	2027 [162]	Map showing the Purple Line's intersection points with the Washington Metro
Red and Purple Modernization Phase One Project	Rapid transit	United States	Chicago	2.1 [163]	2019	2025
Fehmarn Belt Fixed Link	Tunnel (undersea, rail/road)	Denmark, Germany	Fehmarn to Lolland	8.75 [164]	2019 [164]	2028 [164]
Lagos-Kano Standard Gauge Railway	Railway	Nigeria	From Lagos to Kano	8.3 [165] [166]	2011	TBA
Badagry Deep Sea Port	Seaport	Nigeria	Badagry	2.3 [167]	2024 [168]	TBA
Fourth Mainland Bridge	Bridge (road)	Nigeria	Across the lagoon to connect Ikorodu and Lekki	4.2 [169]	2024	TBA
California High-Speed Rail	High-speed rail	United States	California	80.3 [170]	2015	2033 (Phase I)	class=notpageimage| Locations of planned California High-Speed Rail route. Phase I: black; Phase II: dark blue. (The separate Brightline West system is shown in light blue.) Route is approximate in some places.
China Pakistan Economic Corridor	Economic corridor	Pakistan, China	Gwadar to Kashgar	65 [171]	2015	2030
Barcelona Metro line 9	Rapid transit line	Spain	Barcelona	26.3 [172]	2009	2027 [173]		(€19bn)
Santiago Metro Line 7	Rapid transit line	Chile	Santiago	2.5 [174]	2022 [175]	2027	Map of the line
Cross River Rail	Commuter rail tunnel	Australia	Brisbane	4.7 [176]	2017	2026 [176]		AUD $6.3 billion
Metro Tunnel	Commuter rail tunnel	Australia	Melbourne	9.46 [177]	2018	2025	Map of the Metro Tunnel in blue and existing railway lines in grey	AUD $12.58 billion
Suburban Rail Loop East	Rapid transit	Australia	Melbourne	21.8-25 [178]	2022	2035	The map of the Suburban Rail Loop East (Lime Green) placed on top of the Victorian Train Map post Metro Tunnel along with SRL North and SRL West (Grey and Purple)	Part of the proposed orbital Suburban Rail Loop line
NHDP/ Bharatmala	Highway upgrade	India	India	207.6 (total) (NHDP: 53.2, 75.3 in 2023) [179] (Bharatmala: 132.4) [180]	2000	2018: (NHDP) 2026: Bharatmala Phase I [181] Phase II was set to start in 2024, but now is uncertain [182]	NH 47 between Coimbatore and Salem in Tamil Nadu, India.	(INR 4.5 trillion).This project was partially completed by 2018 and was then subsumed under the Bharatmala project.
Agua Negra Tunnel	Tunnel (road)	Argentina, Chile	San Juan, Argentina, & Coquimbo Region	1.5 [183]	2018	2027
Fastracks	Light rail, Commuter rail	United States	Denver	6.5 [184]	2006	2044
City Rail Link	Commuter rail	New Zealand	Auckland	3.4 [185]	2015	2026 [186]		(NZD$5.5bn)
Line 5 Eglinton	Light rail	Canada	Toronto	10.26 [187]	2010	2025
Grand Paris Express	Rapid transit	France	Île-de-France (Paris region)	48 [188]	2016	2030		4 new lines, 200 km, 72 new stations
Scarborough Subway Extension	Rapid transit	Canada	Toronto	3 [189]	2022	2029-2030		CA$3.982 billion, 3 stops, 7.8 km [190]
Tehran-Shomal Freeway, 121 km	Highway	Iran	Tehran Province and Mazandaran Province	1.7 [191]	1996	2024? (sections 1,2, & 4 are already complete)		(HUF 452bn)
Stuttgart 21	Railway & Urban Development	Germany	Stuttgart	10.8 [192]	2010	2026		€9.15 billion [192]
Birmingham Northern Beltline (I-422)	Highway	United States	Birmingham, Alabama	5.4 [193]	2014	2047
Brenner Base Tunnel	Tunnel (rail)	Austria, Italy	Innsbruck to   Franzensfeste	11 [194]	2008	2032
Koralm Tunnel	Tunnel (rail)	Austria	Styria / Carinthia	6.2 [195]	2009	2026		(€5.4 bn)
Semmering Base Tunnel	Tunnel (rail)	Austria	Lower Austria / Styria	4.6 [196]	2012	2030		(€3.9 bn)
Mumbai–Ahmedabad high-speed rail corridor	High-speed rail	India	From Ahmedabad to Mumbai	20 [197]	2019	2026 (partial), 2027 (complete)		(₹1.6 lakh crore)
Sagarmala	Seaport	India	Coastal areas of India	80.9 [198]	2017	2035		(₹6.5 lakh crore, only counting current projects)
High Speed 2	High-speed rail	United Kingdom	England	106.4 [199]	2017 [200]	TBA [201]		330 mi/530 km of High Speed track, [202] 5 stations and West Coast Mainline integration
Northern Powerhouse Rail	Railway & Urban renewal	United Kingdom	England	39 [203]	2018 [204]	2026		Links Liverpool, Sheffield, Kingston-upon-Hull & Newcastle-upon-Tyne to High Speed 2.
Link light rail 2 Line	Light rail line	United States	Eastside King County, Washington	3.7 [205]	2016	2026
Bogotá Metro (line 1)	Rapid transit	Colombia	Bogotá	4.5 [206]	2020	2028
Brussels Metro line 3	Rapid transit	Belgium	Brussels	1.86 [207]	2020 [208]	2030
Chūō Shinkansen	High-speed rail, Maglev	Japan	Japan	64.35 [209] as of May 2021 [update]	2014	Unknown [210]
Tel Aviv Metro	Rapid transit	Israel	Tel Aviv metro area	39.4 [211]	2025	2032
Panama Metro Line 3	Rapid transit line (monorail)	Panama	Panama City	2.7154 [212]	2021	2027		The Panamanian balboa is tied to the United States dollar.
Millennium Line Broadway Extension ("Broadway Subway Project")	Rapid transit	Canada	Vancouver	2.35 [213]	2021 [213]	2026 [214]	Map showing the extension along Broadway in relation to existing lines and surface streets	Cost estimated in May 2021 to be 2,830,000,000 Canadian dollars; in roughly May 2021, that was roughly equivalent to 2,350,000,000 United States dollars.
Penn Station Access	Commuter rail	United States	New York City and Westchester County, New York	2.87 [215]	2022	2027
South Coast Rail	Commuter rail	United States	Southeastern Massachusetts	3.42 [216]	2019 [217]	2030
Bangkok–Nong Khai high-speed railway	High-speed rail	Thailand	Thailand	4.65 [218]	2020	2026		179 billion baht as of October 2022 [update]
Oslo Metro Line T6	Rapid transit line	Norway	Oslo and Bærum	1.6 [219]	2020	2027		Cost is as of January 2017 [update]
Lima Metro Line 2	Rapid transit	Peru	Lima	5.8 [220]	2014	2025	Line 2 in yellow
Line 4 (Athens Metro)	Rapid transit	Greece	Athens	1.9	2021	2029-30		€1.6 billion [221]
São Paulo Metro, Line 6	Rapid transit	Brazil	Greater São Paulo	2.6 [222]	Resumed in 2020	2027
Toulouse Metro, Line C	Rapid transit	France	Toulouse Métropole	3.65 [223]	2022	2028	Metro Line C shown in green	€3.4 billion as of February 7, 2023
Abidjan Metro	Rapid transit	Ivory Coast	Abidjan	1.46 [224]	2022	2028		€1.36 billion as of December 20, 2022
Vienna U-Bahn, U2xU5 Project	Rapid transit	Austria	Vienna	2.5 [225]	2018 [226]	2030	Map of metro after project concludes in 2030
Xiong'an–Xinzhou high-speed railway	High-speed rail	China	Xiong'an–Xinzhou	8.86 [227]	2022	2027
Tanzania Standard Gauge Railway	Railway	Tanzania	Tanzania	At least 7.6 [228]	2017	Unclear (does vary based on phase)
Portal Bridge replacement	Bridge (rail)	United States	New Jersey	1.5 [229]	2022	2025 (first line of track) [230]	Bridge to be replaced
Rogfast	Tunnel (road)	Norway	Rogaland	2.91 [231]	2018 (paused 2019; unclear if/when resumed, but it is still expected to be constructed)	2033
Gordie Howe International Bridge	Bridge (road)	United States, Canada	Detroit to Windsor, Ontario	5.4 [232]	2018	2025
D Line Extension	Rapid transit	United States	Greater Los Angeles	9.5 [233]	2014 (Section 1) 2018 (Section 2) 2021 (Section 3)	2027 (final section: Section 3) [233]
Belgrade Metro	Rapid transit	Serbia	Belgrade	5.35 [234]	2021	2028
Ontario Line	Rapid transit	Canada	Toronto	7.3-8.7 [235]	2022	2031		16 km, 15 stop line with at-grade, elevated and underground sections operated with driverless trains. [236]
São Paulo Metro Line 2 extension	Rapid transit	Brazil	São Paulo	1.4 [237]	2020	2026
Valley Metro Rail: South Central Extension	Light rail	United States	Phoenix, Arizona	1.35 [238]	2019	2025
Hamburg U5	Rapid transit	Germany	Hamburg	1.75 [239]	2022	2030	U5 shown in red and purple
Project Connect	Public transit [a]	United States	Austin, Texas	10.3 for the light rail components; unclear for the rest [240]	2021	Unclear		Measure approved by Austin voters. Construction of at least one bus rapid transit corridor has begun; light rail construction has not begun.
Hampton Roads Bridge–Tunnel Expansion Project	Bridge–tunnel (road)	United States	Hampton Roads (Virginia)	3.9 [241]	2020	2027
Frederick Douglass Tunnel	Tunnel (rail)	United States	Baltimore	6 [242]	2023	2033		Replacement for old Baltimore and Potomac Tunnel)
Brightline West	High-speed rail	United States	California and Nevada	12 [243]	2024	2028
Gateway Program	Rail improvements, including bridges and tunnels	United States	New York City to New Jersey (Hudson River)	16.1 [244]	2023 [245]	2035 [245]
Lena Bridge	Bridge (road)	Russia	Sakha Republic	1.7 [246]	2024	2028

Suspended or abandoned

Project	Description	Country	Location	Status (suspended or abandoned)	Approximate cost (in billions USD) and year of cost estimate	Start of construction	Year suspended	Image	Notes
Northern Latitudinal Railway	Railway	Russia	Labytnangi (Obskaya) - Korotchaevo	Suspended	3.03 (2018) [247]	2018	2022

Proposed

Project	Description	Location	Approximate cost (in billions USD)	Proposed start of construction	Proposed year of completion	Notes
Great Istanbul Tunnel	Railway, Undersea tunnel	Istanbul, Turkey	3.5 [248]	TBD	TBD	After Marmaray and Eurasia Tunnels, it will be the third tunnel to connect Istanbul's sides.
Arctic Railway	Railway	Finland, Norway	3.43 [249]	TBD	TBD	A connecting line between Kirkenes port and the Finnish railway network.
Bridge of the Horns	Bridge (rail/road)	Djibouti, Yemen	20	TBD	TBD	A bridge across the Red Sea.
Crossrail 2	Railway, Commuter rail, Rapid transit	Greater London, United Kingdom	49.4 in 2014 money [250]	2023	2030s[ citation needed ]	A new railway line in England, serving London, Surrey & Hertfordshire to interlink with Crossrail (above).
Helsinki City Rail Loop	Commuter Rail	Finland	1.77 [251]	TBD	TBD	An underground rail loop in Helsinki.
Helsinki–Tallinn Tunnel	Railway, Undersea tunnel	Finland, Estonia	17.74 [252]	TBD	TBD
Irish Sea Bridge	Bridge (rail/road)	United Kingdom	20.55 [253]	TBD	TBD	A proposed bridge between Scotland and Northern Ireland, supported by the Johnson ministry. [254]
Lentorata	Railway tunnel	Finland	6.5 [255]	2030	TBD	An airport rail link for Helsinki Airport.
Malacca Strait Bridge	Bridge (road)	Indonesia, Malaysia	14 [256]	TBD	TBD	A proposed 48 kilometer bridge over the Strait of Malacca.
MetroLink (Dublin)	Rapid transit	Greater Dublin Area, Ireland	9.83 [257]	2025	2031-2034
Saudi–Egypt Causeway	Causeway	Saudi Arabia, Egypt	4	TBD	TBD
Strait of Messina Bridge	Bridge (rail/road)	Italy	6.6	TBD	TBD
Sunda Strait Bridge	Bridge (rail/road)	Indonesia	18.87 [258]	TBD	TBD	The project has been indefinitely postponed. [259]
Singapore Strait crossing	Tunnel (undersea)	Singapore, Indonesia	TBD	TBD	TBD	A proposed tunnel between Singapore and Indonesia.
Qatar–Bahrain Causeway	Causeway	Qatar, Bahrain	5	TBD	TBD
Texas Central Railway	High-speed rail	Texas	5.9	TBD	TBD	Would operate between Dallas and Houston, with a stop in the Brazos Valley region
LinkUS	Rapid transit	Columbus, Ohio	8 [260]	2024	2030	Cost includes three rapid-transit corridors set to open by 2030, and two more by 2050. [260] [261]
Second Avenue Subway, Phase 2	Rapid transit	New York City	6.39 [262]	TBD	TBD	Project was moved to the engineering stage in January 2022. [263]
Interborough Express	Light rail	New York City	5.5 [264] (in 2027 dollars) [265]	TBD	TBD	New light rail line, built largely along existing tracks, connecting Brooklyn and Queens. Still in planning stages.
Rio de Janeiro Light Rail Expansion	Light rail	Rio de Janeiro, Brazil	3 [266]	2023	2025 (at least first sections)	Would add 145.5 km (90.4 mi) to existing light rail network
Bagamoyo Port	Seaport	Bagamoyo, Tanzania	10 [267]	2023
Valparaíso–Santiago rail replacement	Railway	Valparaíso and Santiago, Chile	1.32 [268]	2025	2030
D2 Subway	Light rail	Dallas	1.7-1.9 [269]	TBD	2028
City Centre–Māngere Line	Light rail	New Zealand	8.7 [270]	TBD	TBD	In the detailed planning phase. Would connect Auckland Airport to the CBD, terminating at Wynyard Quarter

Airport projects

Airport	Primary market(s) served	Country	IATA Code	Type of project	Passengers (total)	Year completed	Est. cost (in billions USD) at or near time of completion	Est. cost (in billions USD), adjusted for inflation
Abu Dhabi International Airport	Abu Dhabi	United Arab Emirates	AUH	New airport	20,000,000	1982	6.8	18.2
Adolfo Suarez Madrid-Barajas International Airport Terminals 4 and 4S	Madrid	Spain	MAD	New terminals	57,891,340	2006	8.7	12.7
Al Maktoum International Airport	Dubai	United Arab Emirates	DWC	New airport	410,278 (expected: 260 million)	2010	32	43.7
Athens International Airport	Athens	Greece	ATH	New airport	16,225,885	2001	3	4.9
Auckland Airport	Auckland	New Zealand	AKL	New terminal, new runway		2028-2029 (expected)	2.4 [271]
Bahrain International Airport expansion	Bahrain	Bahrain	BAH	New terminal		2021	1.1 [272]	1.2
Beijing Capital International Airport Terminal 3	Beijing	China	PEK	New terminal	50,000,000	2008	3.8 [273]	5.3
Beijing Daxing International Airport	Beijing	China	PKX	New airport	25,051,012	2019	17	20.4
Berlin Brandenburg Airport	Berlin	Germany	BER	New airport	28,000,000 (expected) [274]	2020	10 (as of 2018 [update] ) [275]
Central Transport Hub	Warsaw	Poland	N/A		≈45,000,000 (expected)	2027 (expected)	4.2-5.0 (expected, without rail component and road component)
Changi Airport Terminal 3	Singapore	Singapore	SIN	New terminal	22,000,000	2008	1.4 [276]	1.9
Changi Airport Terminal 4	Singapore	Singapore	SIN	New terminal	65,628,000	2017	1 [277]
Charles de Gaulle Airport	Paris	France	CDG	New airport	26,196,575 as of 2021 [update] [278]	1973	0.27 [279]	1.4
Chengdu Tianfu International Airport	Chengdu	China	TFU	New airport	4,354,758 as of 2021 [update]	2021	10.8 [280]	12
Chennai greenfield airport, Parandur	Chennai	India	N/A	New airport	100,000,000 (expected)	Unclear	2.5 (₹ 20,000 crore) [281]
Ciudad Real Central Airport	Ciudad Real	Spain	CQM	New airport	Ceased operations in 2012 (expected: 10 million)	2009	1.41
Comodoro Arturo Merino Benítez International Airport: International Terminal	Santiago	Chile	SCL	New terminal	30,000,000	2022 [282] [ unreliable source? ]	0.99
Dallas Fort Worth International Airport	Dallas–Fort Worth metroplex	United States	DFW	New airport	62,465,756 as of 2021 [update]	1973	0.7 [283]	3.7
Dallas Fort Worth International Airport Terminal F; overhaul	Dallas–Fort Worth metroplex	United States	DFW	New terminal; terminal expansion; renovations		2028 or 2033 (expected)	4.8 [284]
Denver International Airport	Denver	United States	DEN	New airport	50,167,485	1995	4.8 [285]	8.8
Dubai International Airport Terminal 3	Dubai	United Arab Emirates	DXB	New terminal		2008	4.5 [286]	6.3
Felipe Ángeles International Airport	Mexico City	Mexico	NLU	New airport		2022	3.68 [287]
George Bush Intercontinental Airport, international terminal construction	Houston	United States	IAH	Terminal redevelopment and/or expansion		Unclear	1.2 [288] (as of October 2019 [update] )
Guangzhou Baiyun International Airport	Guangzhou	China	CAN	New airport	59,732,147	2004	2.39	3.7
Hamad International Airport	Doha	Qatar	DOH	New airport		2014	15.5 [289]	19.7
Harry Reid International Airport (then McCarran International Airport), Terminal 3	Las Vegas	United States	LAS	New terminal		2012	2.4 [290]	3.1
Hazrat Shahjalal International Airport Terminal 3	Dhaka	Bangladesh	DAC	New terminal	Additional 12,000,000 (expected)	2025–2026 (expected) [291]	2.53 [292] (as of 2019 [update] )
Hong Kong International Airport	Hong Kong		HKG	New airport	70,502,000	1998	20 [293] [ unreliable source? ]	34.9
Heathrow Airport Terminal 5	London	United Kingdom	LHR	New terminal	32,100,000 as of 2018 [update]	2008	7.9 [294]	11
Incheon International Airport	Seoul	South Korea	ICN	New airport	28,677,161	2001 (Phase 1) 2008 (Phase 2) 2017 (Phase 3)	5 (Phase 1) 2.6 (Phase 2) 3.54 (Phase 3)	8.2 (Phase 1) 3.6 (Phase 2) 4.3 (Phase 3)
Istanbul Airport	Istanbul	Turkey	IST	New airport	76,236,980 [295]	2018	29 (including side projects) [296]	34.7
John F. Kennedy International Airport, (New) Terminal One	New York City	United States	JFK	New terminal		Expected: 2026 (Phase 1) 2030 (Full completion)	9.5 [297]
John F. Kennedy International Airport, (New) Terminal 6	New York City	United States	JFK	New terminal		Expected: 2026 (Phase 1) 2028 (Full completion)	4.2 (Phase 1) [298]
Kansai International Airport	Osaka	Japan	KIX	New airport	27,987,564	1994	20 (as of 2008 [update] )	27.8 (starting inflation calculation in 2008)
Kansas City International Airport	Kansas City	United States	MCI	New terminal (replacement)		2023	1.5 [299]
Kertajati International Airport	Majalengka Regency	Indonesia	KJT	New airport	29,000,000 (expected)	2018	15	17.9
King Abdulaziz International Airport	Jeddah	Saudi Arabia	JED	New airport	18,000,000	1981	7.2 [300]
King Shaka International Airport	Durban	South Africa	DUR	New airport	7,500,000	2010	1	1.4
Kuala Lumpur International Airport	Kuala Lumpur	Malaysia	KUL	New airport	52,643,511	1998	3.5
Kualanamu International Airport	Medan	Indonesia	KNO	New airport	12,245,116	2013	4.4 [301]
Kuwait International Airport, Terminal 2	Kuwait City	Kuwait	KWI	New terminal	25,000,000 additional passengers (estimated)	2026 (expected)	5 [302]
LaGuardia Airport	New York City	United States	LGA	Renovation	15,601,063	2025 (expected)	8 [303]
Long Thanh International Airport	Ho Chi Minh City	Vietnam	N/A	New airport	100,000,000 (expected)	2025 (expected)	10
Los Angeles International Airport	Los Angeles	United States	LAX	Renovation and expansion			14
Louis Armstrong New Orleans International Airport (new terminal)	New Orleans	United States	MSY	New terminal		2019	1.3 [304]	1.5
Manchester Airport Transformation Programme	Manchester	United Kingdom	MAN	New terminal		2025 (expected)	1.6 [305] (equivalent to £1.3 billion as of February 2023 [update] )
Munich Airport	Munich	Germany	MUC	New airport		1992	5.17 [306]	10.08
Nashville International Airport, BNA Vision	Nashville, Tennessee	United States	BNA	Airport overhaul [b]		2024	1.5 [307]
Nashville International Airport, New Horizon	Nashville, Tennessee	United States	BNA	Terminal expansion; other improvements [c]		2028 (expected)	1.4 [308]
Navi Mumbai International Airport	Mumbai	India	NMU	New airport	60,000,000 (expected)	2025 (expected)	2
New Islamabad International Airport	Islamabad	Pakistan	IBD	New airport	5,140,585	2018	3.91	4.7
New Lisbon Airport	Lisbon	Portugal	N/A		50,000,000 (expected)	2035 (expected)	4.5
New Mexico City International Airport	Mexico City	Mexico			Ceased operations in 2018 (expected: 125 million)	2018	13
Newark Liberty International Airport Terminal A	Newark, New Jersey; New York City	United States	EWR	Terminal replacement		2023	2.7 [309]
Newark Liberty International Airport Terminal C	Newark, New Jersey; New York City	United States	EWR	Terminal renovation and expansion	33,399,207	2003	1.2	1.9
O'Hare International Airport	Chicago	United States	ORD	Expansion		2028 (expected)	8.7 [310] (as of March 2019 [update] )
Orlando International Airport, Terminal C	Orlando, Florida	United States	MCO	New terminal		2022	2.8 [311]
Salt Lake City International Airport	Salt Lake City	United States	SLC	Renovation and expansion		2024 (expected)	4.1 [312] (as of January 2020 [update] )
Shenzhen Bao'an International Airport, replacement terminal	Shenzhen	China	SZX	Terminal replacement		2013	1.4 [313]	1.8
Shenzhen Bao'an International Airport, third runway	Shenzhen	China	SZX	New runway		2025 (expected)	1.76 [314]
Suvarnabhumi Airport	Bangkok	Thailand	BKK		55,892,428	2006	3.8	5
Taoyuan International Airport Terminal 3	Taipei	Taiwan	TPE	New terminal		First stage: 2024 (expected) [315]	3.13 (as of November 2022 [update] ) [316]
Western Sydney Airport	Sydney	Australia	WSI (provisional)	New airport	10,000,000 (initially) 82,000,000 (by 2036)	2026 (expected)	3.3
Jorge Chávez International Airport	Callao	Peru	LIM	New terminal and runway		2025 (expected) [317]	2 [318]

• 
  Kansai International Airport
• 
  Los Angeles International Airport
• 
  John F. Kennedy Airport
• 
  Hartsfield-Jackson Airport, the busiest in the world.
• 
  Heathrow Airport, London
• 
  O'Hare Airport
• 
  Denver International Airport
• 
  Terminal 3 at Soekarno-Hatta International Airport

Notes

1. This plan includes multiple light rail lines, a new commuter rail line, and multiple bus rapid transit routes.
2. The project includes terminal lobby renovation, an international arrivals facility (including six new international gates and a new Customs and Border Protection area), a new tarmac terminal apron and taxilane expansion, an on-airport hotel and corresponding garage, a satellite concourse, the creation of Concourse D, multiple new terminal garages, and roadway updates to accommodate the changes.
3. The project includes expanding multiple concourses, as well as constructing a new air freight building, making terminal roadway improvements, and making baggage system handling improvements.

References

1. Flyvbjerg, Bent (2017). The Oxford Handbook of Megaproject Management. Oxford University Press. p. 2. ISBN   978-0198732242.
2. Briginshaw, David (October 10, 2014). "Shinkansen: half a century of speed". International Railway Journal . Archived from the original on December 23, 2022. Retrieved March 7, 2023.
3. "Landmark Canakkale bridge to be completed in 2022". AA Energy. January 19, 2019. Archived from the original on April 24, 2022.
4. "Groundbreaking ceremony for bridge over Dardanelles to take place on March 18 - Latest News". March 17, 2017.
5. SCMP Editorial (May 11, 2022). "Sha Tin-Central link must lead to costly lessons being learned". South China Morning Post . Retrieved January 16, 2023.
6. "Colombia opens South America's longest road tunnel". Reuters. September 5, 2020. Retrieved November 22, 2023.
7. "DfT evaluation strategy and programme 2022". GOV.UK. Retrieved November 22, 2023.
8. Grace, Amanda (January 17, 2019). "Seattle tunnel construction avoided costly mistakes of Boston's Big Dig". KING-TV . Retrieved January 16, 2023.
9. Newman, Ian Thomson (December 1, 2017). "Chilean capital's metro network enters an era of expansion: Santiago is already home to South America's most extensive metro, and with two new lines nearing completion and a third planned, the network is set to expand to eight lines totalling 174km". International Railway Journal. 57 (12): 24–27.
10. "Santiago metro Line 3 reaches Plaza Quilicura". Railway Gazette International. Retrieved November 24, 2023.
11. Newman, Ian Thomson (December 15, 2017). "Chilean capital's metro network enters an era of expansion" . International Railway Journal . Archived from the original on January 26, 2023.
12. Bennett, Mia (May 18, 2018). "The Cost of the Bridge to Crimea". The Maritime Executive.
13. "Xinhua Headlines: World's longest cross-sea bridge opens, integrating China's Greater Bay Area". Xinhua Net. October 23, 2018. Archived from the original on March 27, 2019. Retrieved October 24, 2018.
14. Campbell, Jon (November 22, 2019). "Tappan Zee builders claim state owes them an extra $900M for bridge project". lohud . Retrieved January 15, 2023.
15. "Officials finally inaugurate Jerusalem-Tel Aviv fast train to 'connect country'". Times of Israel. December 18, 2019. Retrieved November 24, 2023.
16. "Abuja Light Rail 84 per cent complete – Official". Premium Times . January 18, 2017. Retrieved February 5, 2018.
17. "China Exim Bank to bankroll $1.79bn Abuja light rail - The Sun News". The Sun . March 23, 2017. Archived from the original on December 15, 2017. Retrieved February 5, 2018.
18. "Finish Amsterdam metro line, committee advises". NRC Handelsblad. June 4, 2009. Archived from the original on July 20, 2011. Retrieved May 17, 2011.
19. "Archives". thestar.com.my. Archived from the original on December 21, 2010.
20. "8ος ΚΑΤΑΛΟΓΟΣ ΜΕ ΤΑ ΜΕΓΑΛΑ ΕΡΓΑ ΣΤΗΝ ΕΛΛΑΔΑ, Σεπτέμβριος 2014, O ΠΙΝΑΚΑΣ". ypodomes.com. Archived from the original on January 2, 2015. Retrieved January 1, 2015.
21. Unal, Arife Yildiz (August 1, 2019). "New Istanbul-Izmir highway cuts travel time in half". AA. Archived from the original on August 2, 2019.
22. "Gebze-Izmir Motorway Project - Verdict Traffic".
23. "BMVI - Verkehrsprojekte Deutsche Einheit". www.bmvi.de (in German). Retrieved April 18, 2017.
24. Mount, Ian (April 30, 2014). "In Spain, government-backed trains overtake planes". Fortune . Retrieved January 16, 2023.
25. "İçtaş-Astaldi win third Bosphorus bridge bid". Hürriyet Daily News . May 30, 2012. Retrieved March 30, 2013.
26. "3. köprü yüzünü gösterdi, Bakan 3. köprüyü Habertürk'e tanıttı". July 13, 2012. Retrieved August 29, 2016.
27. Schlosser, Kurt (March 30, 2016). "Inside the world's longest floating bridge: How engineers made Seattle's new Lake Washington span bigger, better and safer". GeekWire. Retrieved January 15, 2023.
28. "Eurasia Tunnel Project, Istanbul, Turkey". Road Traffic Technology.
29. Thomas Müller; Isidor Baumann (April 29, 2016). "Oberaufsicht über den Bau der Neat im Jahre 2015: Bericht der Neat-Aufsichtsdelegation der eidgenössischen Räte zuhanden der Finanzkommissionen, der Geschäftsprüfungskommissionen und der Kommissionen für Verkehr und Fernmeldewesen" (PDF). Bundesblatt (in German, French, and Italian). Vol. 2016, no. 16.005. NRLA supervisory board of the federal councils. p. 6686. BBl 2016 6665 (-6732). Retrieved November 24, 2023.
30. Golding, Bruce (March 24, 2014). "All-white new WTC transit hub costs a mint to clean". New York Post . Retrieved January 15, 2023.
31. "Účet za Blanku bude 43 miliard korun - Novinky". www.novinky.cz (in Czech). January 11, 2015. Retrieved November 24, 2023.
32. "Russia's $9.4B road to Sochi latest in long line of Olympic boondoggles". Fox News . February 7, 2014. Archived from the original on February 7, 2014. Retrieved July 22, 2014.
33. "Views Of Budapest's Metro Line 4". November 7, 2012.
34. "M4 main information". 2012.
35. Loh, Dylan (November 13, 2013). "Marina Coastal Expressway to open on Dec 29". Channel NewsAsia. Archived from the original on November 13, 2013.
36. Tan, Christopher (November 13, 2013). "Undersea road opens in Dec, ECP to be cut off". The Straits Times . Retrieved January 15, 2023.
37. Saifulbahri Ismail (December 29, 2013). "Smooth-flowing traffic as Marina Coastal Expressway opens". Channel Newsasia. Archived from the original on December 30, 2013. Retrieved December 30, 2013.
38. "Marmaray Railway Engineering Project". Railway Technology. April 16, 2021. Retrieved January 15, 2023.
39. Jaffe, Eric (October 13, 2015). "From $250 Million to $6.5 Billion: The Bay Bridge Cost Overrun". CityLab. Archived from the original on September 28, 2017. Retrieved September 28, 2017.
40. Elder, Miriam (July 2, 2012). "Russian city of Vladivostok unveils record-breaking suspension bridge". The Guardian . Retrieved February 21, 2023.
41. "Mexico Receives Guinness Record For Highest Suspension Bridge". Fox News Latino . January 6, 2012. Archived from the original on March 10, 2012. Retrieved December 12, 2012.
42. Setterfield, Catherine (March 12, 2010). "Calderón inspects Baluarte bridge works". BNamericas.com. Archived from the original on June 20, 2015. Retrieved December 12, 2012.
43. "China's record-breaking Jiaozhou bridge 'is safe'". BBC News . July 7, 2011. Retrieved January 16, 2023.
44. "China unveils Shanghai-Hangzhou high-speed railway; eyes network extension". Archived from the original on October 29, 2010.
45. Corkill, Michael (May 24, 2006). "Tunnel price tops $3b". The Courier-Mail . Retrieved January 1, 2015.
46. "CBD South East Sydney Light Rail: follow-up performance audit | Audit Office of New South Wales". www.audit.nsw.gov.au. July 2, 2019. Retrieved November 24, 2023.
47. "Record-breaking Chinese rail opening piles pressure on airlines". The Independent . London. December 25, 2009. Archived from the original on December 26, 2009.
48. "Η Ταυτότητα του Έργου" (in Greek). Archived from the original on February 15, 2008. Retrieved January 1, 2015.
49. Ramstad, Evan (October 19, 2009). "Longest Bridge in Korea Opens to Traffic Monday". The Wall Street Journal . Retrieved January 17, 2023.
50. "Seattle Central Link Light Rail Financial Summary by Jim MacIsaac, P.E." bettertransport.info. Retrieved November 24, 2023.
51. Beria, Paolo; Grimaldi, Raffaele (2016). "An ex-post cost benefit analysis of Italian High Speed train, five years after". doi:10.13140/RG.2.2.34092.87689.
52. "不计建设投资 京津高铁今年持平".
53. Moxley, Mitch (September 20, 2010). "China: Massive Rail Network to Cross Continents". Inter Press Service English News Wire. Archived from the original on April 18, 2016. Retrieved November 24, 2023.
54. Aecom and Atkins, First Interim Evaluation of the Impacts of High Speed 1 (PDF), archived (PDF) from the original on May 8, 2019, retrieved May 8, 2019
55. "Lötschberg base tunnel officially opens". SWI swissinfo.ch. June 15, 2007. Retrieved November 24, 2023.
56. Flyvbjerg, Bent; Bruzelius, Nils; Van Wee, Bert (2008). "Comparison of Capital Costs per Route-Kilometre in Urban Rail". European Journal of Transport and Infrastructure Research. 8 (1): 17–30. SSRN   2237995. See p. 22.
57. Murphy, Sean P. (July 17, 2008). "Big Dig's red ink engulfs state". The Boston Globe.
58. Greiman, Virginia (2013). Megaproject Management: Lessons on Risk and Project Management from the Big Dig (Google eBook). John Wiley & Sons. p. RA2–PT25. ISBN   978-1118416341 . Retrieved April 12, 2015.
59. "FACTBOX-Five facts about Shanghai's high-speed Maglev train". Reuters. January 15, 2008. Retrieved November 24, 2023.
60. Purdum, Todd S. (June 23, 2000). "Los Angeles Subway Reaches End of the Line". The New York Times . Retrieved April 12, 2015.
61. "事後評価総括表" [Post-Evaluation Summary Table](PDF) (in Japanese). Archived from the original (PDF) on May 17, 2006.
62. "JUBILEE LINE EXTENSION, LONDON, United Kingdom" (PDF). University College London. Omega Centre. Retrieved April 2, 2015.
63. "HSBE : Honshu-Shikoku Bridge Expressway Company Limited".
64. OECD Territorial Reviews: Oresund, Denmark/Sweden 2003. OECD Publishing. 2003. p. 38. ISBN   978-92-64-10080-0.
65. "Fakta & Historie". storebaelt.dk. Retrieved November 24, 2023.
66. "Vasco da Gama Bridge". Lusoponte. Archived from the original on February 11, 2016.
67. Megastructures. National Geographic for Channel Five.
68. O’Connell, Dominic (January 8, 2006). "Channel tunnel project has made Britain £10bn poorer". The Times . London. Archived from the original on June 12, 2011.
69. Neuharth, Al (June 23, 2006). "Traveling Interstates is our Sixth Freedom". USA Today .
70. "CDOT Fun Facts". Colorado Department of Transportation. Archived from the original on January 16, 2008. Retrieved February 15, 2008.
71. Stufflebeam Rowe, Karen; LaDow, Eva; Moler, Steve (March–April 2004). "Glenwood Canyon 12 Years Later". Public Roads. Vol. 67, no. 5. U.S. Department of Transportation Federal Highway Administration. Archived from the original on October 2, 2021.
72. Neuharth, Al (June 23, 2006). "Traveling Interstates is our Sixth Freedom". USA Today.
73. "$425,000,000,000 in 2006 → 2021 | Inflation Calculator". www.in2013dollars.com. Retrieved January 1, 2021.
74. Unknown ^{[ permanent dead link ]}
75. Webber, Melvin (1976). "The BART experience: what have we learned?" (PDF). p. 93. Archived (PDF) from the original on May 3, 2019. Retrieved January 12, 2021.
76. Anderssen, Erin (June 26, 2009). "Fallen hero: the St. Lawrence Seaway at 50". The Globe and Mail. Retrieved April 1, 2015.
77. "Venezuela builds the world's most expensive highway". MiMecanicaPopular.com. Popular Mechanics. January 15, 2012. Retrieved January 15, 2012.
78. "Venezuela builds the world's most expensive highway". Automotriz.net. Autrizomot. January 15, 2012. Archived from the original on October 22, 2012. Retrieved January 15, 2012.
79. "Trans-Siberian Railroad - Encyclopedia.com". www.encyclopedia.com.
80. "Frequently Asked Questions". Panama Canal. Archived from the original on August 2, 2015. Retrieved March 29, 2015.
81. Klein, Maury. "Financing the Transcontinental Railroad". The Gilder Lehrman Institute of American History . Archived from the original on July 13, 2015.
82. Maurer, Noel; Yu, Carlos (2010). The Big Ditch: How America Took, Built, Ran, and Ultimately Gave Away the Panama Canal. Princeton University Press. p. 58. ISBN   9781400836284 . Retrieved March 29, 2015.
83. Habib, Heba; Cunningham, Erin (August 6, 2015). "Egypt's 'gift to the world' cost $8 billion and probably wasn't necessary". The Washington Post . Retrieved February 21, 2023.
84. Aratani, Lori (July 19, 2022). "Silver Line's second phase will cost an additional $250M". The Washington Post . Retrieved November 17, 2022.
85. "Mid-Coast Extension of the UC San Diego Blue Line Trolley: Fact Sheet" (PDF). p. 1. Archived from the original (PDF) on November 23, 2021.
86. "Mid-Coast Trolley Extension". SANDAG. Archived from the original on September 22, 2022.
87. "About the Green Line Extension Project". Mass.gov. Retrieved November 22, 2022.
88. Siff, Andrew (April 13, 2018). "NYC's Biggest Infrastructure Project Will Cost Almost $1 Billion More Than Expected". NBC New York. Retrieved November 13, 2022.
89. "Taiwan's Taichung to offer one-month free ride on MRT Green Line". Taiwan News . November 10, 2020. Retrieved January 26, 2023.
90. Сакен Хасенов (January 28, 1999). ""Будет метро в Алматы через 48 месяцев"" (in Russian). Газета «Экспресс-К». Retrieved August 8, 2011.
91. Harnan, Eugene (August 30, 2009). "Changes to Metro put cost up by Dh12bn". The National UAE . Retrieved January 27, 2023.
92. Saltman, Jennifer (August 16, 2019). "By the Numbers: Canada Line turns 10". Vancouver Sun . Retrieved January 28, 2023.
93. Ley, Ana (January 31, 2022). "Will East Harlem Ever Get Its Long-Delayed Subway?". The New York Times . Retrieved January 30, 2023.
94. "VTA's BART Silicon Valley Phase I". Valley Transportation Authority . January 1984. Retrieved January 25, 2023.
95. "Algeria's long-awaited metro system opens in Algiers". BBC News . November 1, 2011. Retrieved February 9, 2023.
96. "Home". Celebrating the Opening of Metro Line 2. HunanGov. August 10, 2018. Retrieved February 11, 2023.
97. Doherty, Regan (August 12, 2012). "Qatar awards $406.4 mln in contracts for planned metro". Reuters . Retrieved February 15, 2023.
98. MacInnes, Paul; Jenkins, Tom (December 4, 2022). "The heart of the World Cup: Doha Metro brings fans together". The Guardian . ISSN   0261-3077 . Retrieved November 24, 2023.
99. "Mombasa-Nairobi Standard Gauge Railway Project". Railway Technology. Retrieved November 25, 2023.
100. Carrell, Severin (September 19, 2023). "True cost of Edinburgh tram line has exceeded £1bn, says report". The Guardian . ISSN   0261-3077 . Retrieved November 25, 2023.
101. "Padma Bridge Fact Box". The Daily Star . June 25, 2022. Retrieved August 5, 2022.
102. Shaver, Katherine (March 31, 2015). "Final tally: Wilson Bridge project $86 million under budget". The Washington Post . Retrieved March 6, 2023.
103. Adler, Jerry (November 2014). "The History of the Verrazano-Narrows Bridge, 50 Years After Its Construction". Smithsonian Magazine . Retrieved March 6, 2023.
104. Stellin, Susan (December 14, 2003). "Travel Advisory: A Train to the Plane, At Long Last". The New York Times. ISSN   0362-4331. Archived from the original on December 22, 2016. Retrieved December 21, 2016.
105. "HSR system sets several world records". The China Post . January 5, 2007. Archived from the original on September 4, 2008.
106. "Annual". Central Bank of the Republic of China (Taiwan). Retrieved March 7, 2023.
107. Smisek, Peter (March 14, 2019). "Replacing New York's Goethals Bridge". The B1M. Retrieved March 7, 2023.
108. "Danyang-Kunshan Grand Bridge". Britannica . Retrieved March 21, 2023.
109. "Строительство второго кольца метро подорожало до 500 млрд руб". RBC. November 23, 2017. Archived from the original on May 23, 2018. Retrieved November 26, 2017.
110. Langmead, Donald; Garnaut, Christine (2001). Encyclopedia of Architectural and Engineering Feats . ABC-CLIO. p.  301. ISBN   9781576071120 . Retrieved March 11, 2018.
111. "First Cityval light metro line opens in Rennes". Metro Report International. September 27, 2022. Retrieved March 28, 2023.
112. "Paris Line 14". Transit Costs Project. Marron Institute (NYU). August 31, 2020. Retrieved March 28, 2023.
113. Hussain, Noor Zainab; Holton, Kate (November 8, 2019). Blair, Edmund; Faulconbridge, Guy (eds.). "Crossrail could cost an extra £650m". Reuters . ISSN   0261-3077. Archived from the original on August 3, 2020. Retrieved February 10, 2020.
114. "Elizabeth Line to open on 24 May 2022". Crossrail. May 4, 2022. Archived from the original on May 4, 2022. Retrieved June 29, 2022.
115. "Downtown Regional Connector train opens after 10 years and $1.8 billion". Daily News. June 17, 2023. Retrieved November 25, 2023.
116. "Our First Subway Completed At Last". The New York Times . August 2, 1908. p. 10. Retrieved July 18, 2023.
117. Anagor-Ewuzie, Amaka (October 23, 2023). "Lekki Port in slow start as economic hardship worsens". Businessday NG. Retrieved December 1, 2023.
118. "Schedule & Cost". Ohio River Bridges Downtown Crossing. Ohio River Bridges Project. Archived from the original on November 21, 2017. Retrieved July 21, 2015.
119. "Lagos light rail now to be completed 2017". BusinessDay. October 21, 2015. Archived from the original on December 12, 2019. Retrieved April 24, 2017.
120. "News Detail - ConstructAfrica". www.constructafrica.com. Retrieved February 5, 2018.
121. Katz, Peter (May 16, 2024). "MTA completes improvements at Harmon Shop at Croton-on-Hudson: cost $1.1B". Westfair Business Journal. Archived from the original on July 21, 2024. Retrieved July 21, 2024.
122. "Governor Hochul Announces Completion of Megaproject to Upgrade Metro-North Railroad's Maintenance and Operations Hub at Croton-on-Hudson" (Press release). Albany, New York: Gov. Kathy Hochul. May 10, 2024. Archived from the original on July 12, 2024. Retrieved July 21, 2024.
123. "Costi e finanziamenti" [Costs and funding]. M4 (in Italian). MM S.p.A. April 17, 2020. Retrieved February 4, 2023.
124. "Milan's New M4 Metro: Milan's new metro line | Webuild Group". webuildgroup. Retrieved November 26, 2023.
125. "Cost of Caltrain Electrification Increases, Project on Track for 2024" (Press release). Caltrain. December 6, 2021.
126. "Parramatta light rail celebrates opening day with commuters aboard first tram". Australian Broadcasting Corporation . December 19, 2024. Retrieved January 3, 2025.
127. "Parramatta Light Rail – Stage 1: frequently asked questions" (PDF). Transport for NSW. Archived from the original (PDF) on February 17, 2017. Retrieved January 3, 2025.
128. Wiggins, Jenny (July 22, 2023). "WestConnex to take years to 'come into its own', says Transurban boss". Financial Review . Retrieved January 3, 2025.
129. "Sydney Gateway opening September". Transurban . August 6, 2024. Retrieved January 3, 2025.
130. "The wonders of the Yaxi Expressway[1]| Society". usa.chinadaily.com.cn. Retrieved April 9, 2025.
131. O'Sullivan, Matt (January 11, 2023). "'Weekends are a lot busier': Sydney's first metro line bucks COVID trend". The Sydney Morning Herald. Retrieved May 22, 2025.
132. "Egypt builds Cairo Metro Line III at $6bln cost". Zawya . Refinitiv. January 27, 2021. Retrieved February 4, 2023.
133. Skura, Elyse (November 17, 2023). "Costs for LRT expansion keep rising, but there's no going back". CBC. Retrieved December 4, 2023.
134. Preston, Robert (June 14, 2022). "Ho Chi Minh City metro to open in 2023" . International Railway Journal . Archived from the original on August 31, 2022.
135. "Saudi Arabia awards $22.5 billion contracts to build Riyadh metro". Reuters . July 28, 2013. Retrieved February 14, 2023.
136. Martin, Matthew; Nereim, Vivian (August 24, 2022). "Saudi Arabia Nears Deal to Settle Billion-Dollar Metro Dispute". Bloomberg . Retrieved February 14, 2023.
137. O'Sullivan, Matt (July 31, 2023). "'Disruptive for passengers': Metro project to cost an extra $1 billion". The Sydney Morning Herald. Retrieved May 22, 2025.
138. "Confederation Line Construction". City of Ottawa. October 6, 2017. Retrieved June 30, 2018.
139. "2015 Look Ahead" (PDF). Confederation Line. 2015. Archived from the original (PDF) on September 25, 2015. Retrieved June 11, 2015.
140. "Lusail tram contract signed". Railway Gazette International . June 24, 2014. Archived from the original on September 1, 2020. Retrieved March 1, 2023.
141. "Hyderabad Metro project delay by L&T pushes up cost by over 30 per cent". India Today. November 26, 2017.
142. "Planning to Cruise Through Sumatra? Toll Road Will Connect the Entire Island by 2024". Jakarta Globe. Retrieved January 10, 2020.
143. Pimentel, Joseph (January 26, 2022) [January 25, 2022]. "$2.1 billion Crenshaw-LAX Light Rail project near completion". Spectrum News 1 . Retrieved March 27, 2023.
144. Honore, Marcel (August 9, 2021). "For Cost Overruns, Honolulu Rail Is In A League Of Its Own, New Data Shows". Honolulu Civil Beat. Retrieved November 26, 2023.
145. "Timeline: How the Mexico-Toluca train survived despite soaring costs". BNamericas.com. August 1, 2020. Archived from the original on August 17, 2022.
146. Aksu, Fatma (October 25, 2016). "Ankara canvasses public opinion on new highway project connecting Istanbul to Aegean region". Hürriyet Daily News . Retrieved January 16, 2023.
147. "Autoput Bar - Boljare". Ministry of Transport of Montenegro. 2010.
148. "Autoput Bar-Boljare: "Posao stoljeća" i dalje stoji". Radio Slobodna Evropa. Slobodna Evropa (Free Europe). 2011.
149. "Počela izgradnja autoputa". Autoput Bar Boljare. May 13, 2015. Archived from the original on March 16, 2016. Retrieved March 13, 2016.
150. Magder, Jason (June 3, 2021). "REM to cost at least $350 million more than expected". Montreal Gazette . Retrieved December 7, 2022.
151. Tomesco, Frédéric (May 20, 2022). "Opening of REM's airport section delayed until at least 2025". Montreal Gazette . Retrieved May 24, 2022.
152. "Tel Aviv light rail to bring heavy changes to city life". The Jerusalem Post . August 18, 2023. ISSN   0792-822X . Retrieved December 4, 2023.
153. Danan, Deborah (August 17, 2023). "Tel Aviv light rail launches amid multiple challenges, criticism over Shabbat closure". The Times of Israel. Retrieved December 4, 2023.
154. "Μετρό Θεσσαλονίκης: το απόγευμα της 30ης Νοεμβρίου ανοίγουν τις πύλες τους οι 13 σταθμοί – Στα 3 δισ. ευρώ το κόστος" [Thessaloniki Metro: the 13 stations open their gates at noon on 30 November – cost at 3 billion euro]. www.ypodomes.com (in Greek). April 22, 2020. Retrieved November 20, 2024.
155. "After 18 Years Construction, Thessaloniki's Metro Will Open in 2024". The National Herald. October 5, 2023. Retrieved November 30, 2023.
156. "'Great frustration' as budget for Victoria's most costly road project surges by $10 billion". ABC News. December 14, 2023. Retrieved May 22, 2025.
157. Briginshaw, David (December 21, 2022). "Final Sydney Metro Western Sydney Airport project contract awarded". International Railway Journal. Retrieved May 22, 2025.
158. O'Sullivan, Matt (April 9, 2023). "Cost of new motorway under Sydney Harbour blows out by $1.4 billion". The Sydney Morning Herald. Retrieved May 22, 2025.
159. O'Sullivan, Matt (March 12, 2025). "Cost blowout risk hangs over Sydney's largest metro rail project". The Sydney Morning Herald. Retrieved May 22, 2025.
160. Pirayesh, Erick (February 18, 2022). "Silver Line project to add new mobility options for Plano". Community Impact. Retrieved May 5, 2022.
161. Shaver, Katherine; Lazo, Luz (April 14, 2022). "New construction contract for Maryland's Purple Line signed" . The Washington Post . Archived from the original on July 5, 2022. Retrieved December 28, 2022.
162. Shaver, Katherine (January 19, 2023). "Maryland's Purple Line construction faces another seven-month delay". The Washington Post . Retrieved January 30, 2023.
163. "Mayor Lightfoot, CTA Break Ground on Historic Red and Purple Line Modernization (RPM) Project" (Press release). Chicago, IL: Mayor's Press Office. October 2, 2019. Retrieved January 27, 2023. Work performed as part of the $2.1 billion RPM Phase One project will make commuting better for all CTA riders with improved service and modern rail stations that are fully accessible to people with disabilities.
164. "Green light for €7.4bn tunnel between Denmark and Germany". Global Construction Review. March 28, 2019. Retrieved November 25, 2019.
165. Israel, Olumide (March 2, 2014). "Railway: The return of the economic live wire!". Vanguard.
166. Ayemba, Dennis (December 3, 2022). "Lagos-Kano SGR project timeline and latest update". Construction Review Online. Retrieved February 1, 2023.
167. Adebowale, Yemi (October 8, 2016). "Ambode Revs up $2.3bn Badagry Deep Sea Port Project" . Retrieved February 5, 2018.
168. Aro, Busola (November 8, 2023). "FG to renovate ports with $1.1bn, begin Badagry deep seaport construction next year". The Cable. Archived from the original on November 13, 2023. Retrieved November 30, 2023.
169. "Lagos sign deal for construction of 38km-long fourth mainland bridge". May 25, 2016. Archived from the original on April 15, 2017. Retrieved February 5, 2018.
170. "2020 BUSINESS PLAN" (PDF). California High Speed Rail Authority. Retrieved March 13, 2020.
171. Shahzad, Asif (November 1, 2022). "Pakistan's Sharif lands in Beijing to discuss economy, debt". Reuters. Retrieved December 1, 2023.
172. Ediciones El País (March 28, 2012). "La línea L-9 costará 10.000 millones más de lo previsto" [The L-9 line will cost 10 billion more than planned]. El País (in Spanish). Retrieved January 27, 2023.
173. "Barcelona's L9 metro tunnel to be completed by 2027". www.catalannews.com. June 15, 2022. Retrieved December 1, 2023.
174. Rogers, David (February 14, 2023). "China Railway pays $600m for another stretch of Chile's main highway". Global Construction Review. Retrieved December 1, 2023.
175. Financiero, Diario. "Nueva Línea 7 de Metro entre Renca y Vitacura inició obras que se extenderán hasta 2027 | Diario Financiero". www.df.cl (in Spanish). Retrieved December 1, 2023.
176. O'Neal, Danielle (March 31, 2023). "Queensland government reveals Cross River Rail cost blowout of $960 million, now not due to open til 2026". ABC News . Retrieved July 10, 2023.
177. "Melbourne Metro Tunnel project Phase 2: Main works". Victorian Auditor-General's Office. Retrieved November 30, 2022.
178. Jacks, Timna; Preiss, Benjamin (August 28, 2018). "Crucial questions remain over cost of Melbourne's suburban rail loop". The Age . Retrieved November 25, 2019.
179. "Financing of the National Highway Development Programme" (PDF). Archived from the original (PDF) on February 28, 2007.
180. "Project cost over doubled to Rs 10.64 trn under Bharatmala Pariyojana: Icra". Business Standard. November 20, 2023. Retrieved December 1, 2023.
181. "Bharatmala Project: Routes, Map, Details, and Latest News". Magicbricks Blog. May 3, 2022. Retrieved December 1, 2023.
182. Narayan, Subhash (October 12, 2023). "₹20 trillion highway plan ready, may replace Bharatmala-2". mint. Retrieved December 1, 2023.
183. "Agua Negra Tunnel - Verdict Traffic". www.roadtraffic-technology.com. Retrieved December 1, 2023.
184. Proctor, Cathy (January 5, 2010). "FasTracks costs have dropped, but so have funds for project, RTD says". Denver Business Journal . Retrieved January 27, 2023.
185. "CRL submits funding request to Government and Council" (Press release). City Rail Link Limited. March 15, 2023. Retrieved May 16, 2023.
186. Orsman, Bernard (February 12, 2025). "First train runs through Auckland's City Rail Link - two months late". The New Zealand Herald . Retrieved April 7, 2025.
187. "No 'credible plan' for completion of Eglinton LRT, says Metrolinx". Toronto Star . December 12, 2022. Archived from the original on December 9, 2022. Retrieved December 9, 2022.
188. "Grand Paris Express : une estimation des coûts en hausse" [Grand Paris Express: an increase in cost estimates]. Vie publique (in French). Direction de l'information légale et administrative. November 6, 2020. Retrieved January 27, 2023.
189. "A Subway for Scarborough". Metrolinx . Archived from the original on December 3, 2020. Retrieved September 7, 2020.
190. Infrastructure Ontario; Metrolinx (February 2020). "Scarborough Subway Extension Preliminary Design Business Case" (PDF). Metrolinx . p. 59. Archived from the original (PDF) on December 10, 2020. Retrieved September 7, 2020.
191. "آیا آسانترین قطعه آزاد راه تهران - شمال افتتاح می شود؟". March 17, 2013.
192. Holly, Leon; AFP (March 18, 2022). "Deutsche Bahn: Kosten für Stuttgart 21 steigen auf über neun Milliarden Euro". Die Zeit (in German). ISSN   0044-2070 . Retrieved December 1, 2023.
193. Pillion, Dennis (June 23, 2023). "$5 billion bypass north of Birmingham unnecessary, destructive, groups say". AL. Retrieved December 1, 2023.
194. "The $11BN Tunnel Connecting Scandinavia to the Mediterranean". www.theb1m.com. Retrieved December 1, 2023.
195. Burroughs, David (June 19, 2020). "Tunnelling completed on Austria's 33km Koralm tunnel". International Railway Journal. Retrieved December 1, 2023.
196. Preston, Robert (April 26, 2022). "Further delay to Semmering Base Tunnel". International Railway Journal. Retrieved December 1, 2023.
197. "Delays escalate bullet train cost to Rs 1.6 lakh crore". The Times of India. July 30, 2022. ISSN   0971-8257 . Retrieved December 1, 2023.
198. Saha, Dhruvaksh (May 7, 2022). "Sagarmala project pipeline doubles to 1,537, cost rises to Rs 6.5 trillion". Business Standard. Retrieved December 1, 2023.
199. "HS2: What is the route, when will it be finished and what will it cost?". BBC News . November 18, 2021.
200. "Constructing the HS2 railway". gov.uk . November 3, 2017 [August 23, 2017]. Retrieved March 5, 2023.
201. Marsh, Nick; Race, Michael (June 18, 2025) [17 June 2025]. "HS2 line to be delayed again with no new date given". BBC News . Retrieved August 1, 2025.
202. "High Speed 2 (HS2) Railway, United Kingdom - Railway Technology".
203. "Northern Powerhouse Rail". Transport for the North .
204. "HS2 suffers setback as legislation delayed by 12 months". Rail Technology Magazine. September 9, 2018. Retrieved January 21, 2023.
205. Trumm, Doug (August 27, 2023). "Sound Transit Approves East Link Starter Line and $122 Million to Study Ballard Link Late Additions - The Urbanist". www.theurbanist.org. Retrieved December 4, 2023.
206. "Bogotá has some of the worst traffic. It's finally getting a metro, with China's help". WUNC. September 23, 2023. Retrieved December 4, 2023.
207. "METRO 3 : DU NORD AU SUD EN 20 MINUTES". metro3.be (in French). Retrieved October 21, 2021.
208. Rose, Maria (November 3, 2020). "Construction of €175 million Brussels Metro Line 3 commenced". Urban Transport News. Retrieved October 21, 2021.
209. Smith, Kevin (May 4, 2021). "Chuo maglev costs soar". International Railway Journal . Archived from the original on January 20, 2023. Retrieved January 20, 2023.
210. "JR Central gives up on opening new maglev train service in 2027". Kyodo. July 3, 2020. Retrieved July 8, 2020.
211. Goldberg, Jeremaya (August 29, 2023). "Land acquisition begins for Tel Aviv Metro". International Rail Journal. Retrieved December 4, 2023.
212. Rojas, Ingrid (September 15, 2021). "HPH obtiene crédito por 2.000 millones de dólares para la Línea 3 del Metro de Panamá" [HPH obtains credit for 2 billion dollars for Line 3 of the Panama Metro]. LexLatin (in Spanish). Retrieved December 28, 2022.
213. Chan, Kenneth (May 13, 2021). "Major construction now officially underway on $2.8-billion Broadway Subway". Urbanized. Daily Hive . Retrieved January 9, 2023.
214. Chan, Kenneth (November 24, 2022). "Broadway Subway opening delayed to 2026". Urbanized. Daily Hive . Retrieved January 9, 2023.
215. Clinnick, Richard (December 22, 2021). "$US 2.87bn Penn Station Access Project contract awarded". International Railway Journal . Retrieved December 7, 2022.
216. Dungca, Nicole. "State changes gears on Middleborough commuter rail plan". BostonGlobe.com. Retrieved December 4, 2023.
217. "Baker-Polito Administration Celebrates South Coast Rail Groundbreaking". Mass.gov. Retrieved November 8, 2019.
218. Arunmas, Phusadee (October 17, 2022). "Rail projects sped up to reduce costs". Bangkok Post . Retrieved January 19, 2023.
219. Berg Bentzrød, Sveinung (January 25, 2017). "Smiler bredt, men vil ikke si når Fornebubanen skal stå ferdig". Aftenposten (in Norwegian). Archived from the original on August 13, 2022. Retrieved April 5, 2019.
220. "Lima Line 2". Transit Costs Project. Marron Institute (NYU). August 31, 2020. Retrieved January 26, 2023.
221. Kokkinidis, Tasos (June 23, 2021). "New Metro Line in Athens Hailed as "Largest Project in Greece"". Greek Reporter. Retrieved December 7, 2023.
222. Burroughs, David (October 16, 2020). "Construction of São Paulo metro Line 6-Orange resumes" . International Railway Journal . Archived from the original on February 8, 2023.
223. "Toulouse unveils mock-up for third metro line". Urban Transport Magazine. February 7, 2023. Retrieved February 8, 2023.
224. "Ivory Coast launches construction of metro project". Africanews . December 20, 2022. Retrieved February 8, 2023.
225. Cuenca, Oliver (January 25, 2021). "Wiener Linien awards contract for U-Bahn extensions". International Railway Journal . Retrieved February 10, 2023.
226. Briginshaw, David (October 8, 2018). "Vienna starts work on U-Bahn expansion project". International Railway Journal . Retrieved February 10, 2023.
227. "China's top economic planner approves high-speed rail project". XinhuaNet . January 17, 2021. Retrieved February 15, 2023.
228. "Tanzania Standard Gauge Railway (SGR)". Construction Review Online. February 10, 2023. Retrieved February 15, 2023.
229. "At last, commuters will see construction of a new Portal Bridge from their train windows". April 7, 2022.
230. Higgs, Larry (October 12, 2021). "'Momentous day' for NJ Transit commuters with $1.56B contract to replace Portal Bridge". NJ.com.
231. Akhtar, Syed Ali Shahbaz; Oftedahl, Cathrine; Morsund, Gunnar (November 20, 2020). "Regjeringen klar for å gå videre med Rogfast" [The Government is Ready to Move Forward with Rogfast]. NRK (in Norwegian). Retrieved December 26, 2020.
232. Urbi, Jaden (April 27, 2022). "Building The Bridge a Billionaire Tried to Stop". The B1M. Retrieved March 7, 2023.
233. Wanek-Libman, Mischa (May 25, 2021). "L.A. Metro breaks ground on final Purple Line extension section". Mass Transit. Retrieved March 27, 2023.
234. "French, Chinese Firms Sign Deal On Belgrade Metro". Radio Free Europe/Radio Liberty . January 22, 2021. Retrieved March 28, 2023.
235. Metrolinx; Infrastructure Ontario (July 2019). "Ontario Line Initial Business Case" (PDF). p. 78. Retrieved September 7, 2020.
236. Metrolinx. "Ontario Line" . Retrieved September 7, 2020.
237. Passos, Renata (January 23, 2020). "Work to start on São Paulo Line 2-Green extension". International Railway Journal . Archived from the original on March 31, 2023. Retrieved March 31, 2023.
238. "Valley Metro light rail service to be impacted by construction until July". KTAR News . April 15, 2022. Retrieved April 3, 2023.
239. Marcus, Imanuel (September 30, 2022). "Hamburg: Construction of Fifth 'U-Bahn' Train Line Commences". The Berlin Spectator. Retrieved April 3, 2023.
240. Thompson, Kelsey (October 26, 2022) [July 20, 2022]. "$10B Project Connect scope might change to combat inflation costs". KXAN . Nexstar Media Group . Retrieved April 17, 2023.
241. "HRBT Expansion Project". HRBT Expansion. Virginia Department of Transportation . Retrieved July 18, 2023.
242. Luczak, Marybeth (March 13, 2023). "Amtrak begins $US 6bn Baltimore & Potomac tunnel replacement programme". International Railway Journal . Archived from the original on July 18, 2023. Retrieved July 18, 2023.
243. "Rail spikes hammered, bullet train being built from Sin City to the City of Angels". AP . April 23, 2024. Retrieved May 24, 2024.
244. Wilson, Colleen (November 20, 2022) [November 18, 2022]. "Can $16B Gateway costs be lowered? GDC makes case as it seeks OK from feds for next phase". NorthJersey.com . Retrieved February 1, 2023.
245. Miller, Jen A. (November 21, 2023). "$16B Gateway Program construction finally underway". Construction Dive. Archived from the original on August 24, 2024. Retrieved August 24, 2024.
246. "Bridge across Lena to cut annual cost of Yakutia's winter supplies by $46 million". TASS. Retrieved July 17, 2025.
247. "Northern Latitudinal Railway concession signed". Railway Gazette International. October 8, 2018.
248. "Turkish Parliament approves construction of $3.5bn Great Istanbul Tunnel". Road Traffic Technology. January 22, 2019.
249. "Plans move forward for €2.9bn Arctic railway". www.theconstructionindex.co.uk. Retrieved December 2, 2019.
250. "Funding". Crossrail 2 . Archived from the original on March 21, 2023. Retrieved March 21, 2023.
251. Tamminen, Jenni (March 27, 2019). ""Antti Rinteen suunnitelma tulisi liian kalliiksi veronmaksajille" – Tiilikainen: Pisararata vanheni, tehdään Lentorata keskustaan asti". Uusi Suomi (in Finnish). Retrieved December 2, 2019.
252. "China's Touchstone to invest $17 billion in Helsinki-Tallinn tunnel". Reuters . March 8, 2019. Retrieved November 25, 2019.
253. "Top architect insists Scotland - Northern Ireland bridge 'is feasible'". BBC News . January 22, 2018. Retrieved November 25, 2019.
254. "Boris Johnson seeks cost estimates for a Scotland-Northern Ireland bridge". HeraldScotland. September 10, 2019. Retrieved November 25, 2019.
255. Teivainen, Aleksi (February 4, 2019). "Finland earmarks funds for new rail links between Helsinki, Turku and Tampere". Helsinki Times . Retrieved December 2, 2019.
256. Yong Yen Nie; Wahyudi Soeriaatmadja (October 18, 2013). "China's EXIM bank to fund most of Malacca-Indonesia bridge project". The Jakarta Post . Retrieved November 25, 2019.
257. McQuinn, Cormac (July 4, 2022). "Metro linking Dublin Airport to city centre estimated to cost €9.5bn". The Irish Times . Retrieved January 23, 2023.
258. "Cost of Sunda Strait bridge may balloon to US$18.87 billion". The Jakarta Post. Retrieved November 25, 2019.
259. "No more Sunda Strait Bridge plan". The Jakarta Post. Retrieved November 25, 2019.
260. Meibers, Bonnie (April 18, 2022) [April 15, 2022]. "Central Ohio leaders eye sales tax increase to fund $8B in transit investment". Columbus Business First . Retrieved January 20, 2023.
261. Warren, Brent (April 7, 2022). "COTA Outlines Plan to Fund Transit Corridors, Other Transportation Upgrades". Columbus Underground . Retrieved January 20, 2023.
262. "Second Avenue Subway Phase 2: New Starts Project Development" (PDF). Federal Transit Administration . Retrieved January 30, 2023.
263. "Governor Hochul and MTA Announce Second Avenue Subway Phase 2 Moves Forward" (Press release). Albany, NY: Gov. Kathy Hochul. January 6, 2022. Retrieved January 30, 2023.
264. Brachfeld, Ben (January 11, 2023). "Interborough Express will move forward as light rail project". amNY . Retrieved February 1, 2023.
265. Spivack, Caroline (January 17, 2023). "The Interborough Express will be the MTA's first light rail line. Here's what to expect". Crain's New York Business. Retrieved February 1, 2023.
266. Passos, Renata (December 16, 2022). "Rio launches ambitious light rail project" . International Railway Journal . Archived from the original on February 11, 2023.
267. Malanga, Alex Nelson (September 24, 2022). "Bagamoyo Port construction to start in 2023". The Citizen . Retrieved February 21, 2023.
268. Newman, Ian Thomson (January 17, 2023). "Chile proceeds with Santiago - Valparaíso upgrade". International Railway Journal . Archived from the original on January 17, 2023. Retrieved February 27, 2023.
269. U.S. Department of Transportation; Federal Transit Administration; Dallas Area Rapid Transit (May 2020). Dallas CBD Second Light Rail Alignment (D2 Subway) Supplemental Draft Environmental Impact Statement (PDF) (Report). Dallas Area Rapid Transit. Archived from the original (PDF) on September 17, 2020. Retrieved August 24, 2020.
270. "Auckland light rail 'absolutely' going ahead - Transport Minister". RNZ . February 23, 2023. Retrieved May 16, 2023.
271. "Building the gateway New Zealand needs: Multi-billion-dollar investment in future of travel at Auckland Airport" (Press release). Auckland Airport. March 17, 2023. Retrieved May 16, 2023.
272. Greenwood, Matthew (February 26, 2021). "Bahrain Unveils New Airport Terminal". engineering.com. Retrieved February 13, 2023.
273. Barboza, David (May 2, 2008). "Beijing Air Terminal Goes All Out for the Games". The New York Times . Retrieved June 6, 2023.
274. "Berlin Airport plans to build additional terminal - before grand opening". The Local Germany. May 2, 2018. Retrieved June 25, 2019.
275. "BER nimmt Anflug auf zehn Milliarden Euro" [BER nosediving towards 10bio]. PNN (in German). Archived from the original on January 15, 2018. Retrieved May 21, 2019.
276. "Changi's Airport Development" (PDF). Changi Airport Group. Archived from the original (PDF) on February 2, 2014. Retrieved January 26, 2014.
277. "Changi Airport allots nearly S$1.3bn for terminal 4 construction". Singapore Business Review. Retrieved January 26, 2014.
278. "Aéroport de Paris – Charles de Gaulle". Les Aéroports Français, Statistiques annuelles (in French). Paris: Union des aéroports Français. Retrieved January 21, 2023.
279. Groot, Marnix (Max) (August 7, 2019). "Paris Charles de Gaulle Airport, Part 2: A Monument for the Age of Air Travel". AirportHistory.org. Retrieved January 21, 2023.
280. Cripps, Karla (June 28, 2021). "China's latest mega-airport is officially open". CNN . Retrieved January 24, 2023.
281. Ayyappan, V (August 2, 2022). "Construction of new Chennai airport will cost Rs 20,000 crore: Stalin". Times of India . Retrieved February 15, 2023.
282. Lane, Mark (February 28, 2022). "Santiago de Chile Airport opens US$990 million international terminal". The Moodie Davitt Report. Retrieved January 19, 2023.
283. Stoddard, Carol (July 9, 2020). "Throwback Thursday: Exploring DFW International Airport". Irving, Texas. Irving Convention & Visitors Bureau. Retrieved January 27, 2023.
284. Rudolph, Jenny (May 17, 2023). "DFW airport to build new Terminal F, add more gates as part of $4.8B expansion". Fort Worth Star-Telegram . Retrieved May 27, 2023.
285. "Denver International Airport Construction and Operating Costs". University of Colorado at Boulder Government Publications Library. July 5, 1997. Archived from the original on February 8, 2008. Retrieved February 1, 2008.
286. Gale, Ivan (October 8, 2008). "New Terminal 3 to evoke 'tranquillity'". The National: Business . Retrieved January 30, 2023.
287. Esposito, Anthony (March 21, 2022). "Mexican president opens new airport three years after ditching alternative". Reuters . Retrieved January 19, 2023.
288. Bennett, Adam (October 18, 2019). "$1.2B IAH international terminal expansion underway". KHOU . Retrieved February 8, 2023.
289. "First commercial flight lands at Qatar's new $15bn airport in Doha". The National: Business . Agence France-Presse. April 29, 2014. Retrieved January 30, 2023.
290. Velotta, Richard (June 27, 2012). "McCarran's Terminal 3 opens with Vegas-style fanfare". Las Vegas Sun . Archived from the original on August 6, 2016. Retrieved May 1, 2016.
291. Siddiqui, Kamran (June 1, 2025). "Govt targets Dec opening of Dhaka airport's 3rd terminal but Japanese consortium wants 2 more months". The Business Standard . Retrieved June 9, 2025.
292. Tribune Desk (December 28, 2019). "PM inaugurates construction of Dhaka airport's 3rd terminal". Dhaka Tribune . Retrieved January 19, 2023.
293. "Hong Kong International Airport (HKG/VHHH) - Airport Technology". airport-technology.com.
294. "Heathrow Terminal 5". British Airways . October 30, 2020. Archived from the original on January 21, 2023. Retrieved January 21, 2023.
295. "Yolcu istatiktikleri" (PDF). dhmi.gov.tr (in Turkish). Archived from the original (PDF) on January 12, 2023. Retrieved April 19, 2023.
296. Ozbilgin, Ozge (May 3, 2013). "Turkish firms win 22 billion euro Istanbul airport tender". Reuters . Retrieved January 27, 2023.
297. "Governor Hochul Announces Groundbreaking of $9.5 Billion New Terminal One in a Major Step Forward for Port Authority's JFK Transformation" (Press release). Albany, NY: Gov. Kathy Hochul. September 8, 2022. Retrieved January 20, 2023.
298. "Governor Hochul Announces Construction of a $4.2 Billion New Terminal 6 at JFK Will Begin Early Next Year as Final Pieces of the Project Are in Place" (Press release). Albany, NY: Gov. Kathy Hochul. November 17, 2022. Retrieved January 20, 2023.
299. Mansaray, Mili (January 2, 2023). "Kansas City's new and improved airport terminal opens this spring. Here's what flyers can expect". KCUR . Retrieved March 30, 2023.
300. Jed-airport.com
301. Apriadi, Gunawan (April 15, 2006). "North Sumatra to get new airport soon". The Jakarta Post . Archived from the original on June 9, 2008.
302. De Brito, Claudia (November 8, 2021). "Kuwait Airport to undergo US$8.2 billion redevelopment". Connecting Travel. Retrieved January 19, 2023.
303. Shepardson, David (June 1, 2022). "New York LaGuardia airport reveals $8 bln makeover". Reuters . Retrieved January 19, 2023.
304. Baskas, Harriet (November 6, 2019). "New Orleans' new $1.3 billion airport terminal captures some of NOLA's spirit". CNBC . Retrieved January 21, 2023.
305. Britton, Paul (January 25, 2023). "Lift-off for final £440m transformation of Manchester Airport's T2". Manchester Evening News . Retrieved February 13, 2023.
306. Upton, Kim (May 17, 1992). "New Munich Airport Stresses Ease of Travel". Los Angeles Times . Retrieved February 14, 2023.
307. Schleicher, Rebecca (June 13, 2022). "Exclusive: a look inside the Nashville International Airport renovation". News Channel 5 Nashville. Retrieved January 22, 2023.
308. "Nashville International Airport Announces New Construction and Renovation Plan, "New Horizon"" (Press release). Nashville, TN: Metropolitan Nashville Airport Authority. June 10, 2022. Retrieved January 23, 2023.
309. Rahmanan, Anna (January 17, 2023). "See inside the expensive new Terminal A at Newark Airport". Time Out . Retrieved February 14, 2023.
310. "Chicago's $8.7 billion O'Hare Airport expansion underway". Associated Press . March 20, 2019. Retrieved January 19, 2023.
311. Waldek, Stefanie (September 13, 2022). "Orlando International Airport's CEO Shares How Its New Terminal Will Affect Travelers". Travel + Leisure . Retrieved February 8, 2023.
312. Davidson, Lee (January 15, 2020). "Salt Lake City International Airport remodel cost grows to $4.1B". The Salt Lake Tribune . Retrieved January 19, 2023.
313. Cooperstein, Paige (March 13, 2014). "China's Futuristic New Airport Terminal Looks Like A Manta Ray [PHOTOS]". Business Insider . Retrieved January 24, 2023.
314. Han Ximin (August 3, 2022). "World-class airport cluster on fast track". Shenzhen Daily . Retrieved January 24, 2023.
315. Mehta, Manik (August 11, 2022). "Taiwan Taoyuan International Airport in Expansion Mode". Aviation Pros. Retrieved January 22, 2023.
316. Shan, Shelley (November 10, 2022). "TIAC drawing pricing plan for Terminal 3". Taipei Times . Retrieved January 22, 2023.
317. Tumay Soto, Martín (December 5, 2024). "Nuevo aeropuerto Jorge Chávez abrirá este miércoles 29 de enero: 10 cifras que muestran su magnitud y capacidad". Infobae (in Spanish). Retrieved January 3, 2025.
318. "La primera Ciudad Aeropuerto de Sudamérica estará en Lima". nuevojorgechavez.com (in Spanish). Retrieved January 3, 2025.