2022 in rail transport

January

 * 🇨🇳 January 1– opens.
 * 🇶🇦 January 1 – First phase of the Lusail Tram opens.
 * 🇨🇳 January 8 – Hangzhou–Taizhou high-speed railway opens.
 * 🇨🇳 January 11 – Trial opening of the Jinyi section of Jinhua Rail Transit's Jinyidong line.
 * 🇫🇷 January 13 – Line 4 of the Paris Métro is extended from Mairie de Montrouge to Bagneux–Lucie Aubrac.
 * 🇨🇳 January 15 – The Jiaxing Tram is extended from Fanggong Road Binhe Road to Jiaxing Railway Station.
 * 🇨🇳 January 25 – The first phase of Line 9 of the Chongqing Rail Transit opens between Gaotanyan and Xingke Avenue.

February

 * 🇲🇦 February 16 – Opening of Line 2 extension of the Rabat–Salé tramway.
 * 🇨🇳 February 21 – The first phases of Lines 3 and 10 of the Hangzhou Metro open, and Line 4 is extended from Pengbu to Chihua Street.

March

 * 🇮🇳 March 6 – The Pune Metro starts operations between PCMC Bhavan and Phugewadi on the Purple Line, and between Vanaz and Garware College on the Aqua Line.
 * March 19
 * 🇰🇷 – Line 4 of the Seoul Metropolitan Subway is extended from Danggogae to Jinjeop.
 * 🇷🇸 – The 75 kilometer 'Beno' rail line between Belgrade and Novi Sad in Serbia is reopened as a high speed line as part of the Budapest–Belgrade railway.
 * 🇺🇸 March 21 – The Union Square Branch of the MBTA subway's Green Line Extension opens in Somerville.
 * 🇵🇭 March 22 – Manila MRT Line 3 completes an upgrading and rehabilitation project.
 * March 25
 * 🇷🇺 – Construction of the Moscow–Saint Petersburg high-speed railway is suspended.
 * 🇪🇸 – The Bilbao tram is extended from Atxuri to Bolueta using the former Euskotren Trena alignment between Kukullaga and Atxuri.
 * 🇫🇮🇷🇺 March 28 – Allegro international high-speed service ends operations.
 * 🇮🇳 March 29 – Punjabi Bagh West station on the Delhi Metro becomes an interchange between the Pink Line and the Green Line.
 * 🇨🇳 March 30 – Guiyang railway loop line opens.
 * March 31
 * 🇨🇳 – The first phase of Line 22 of the Guangzhou Metro opens from Panyu Square to Chentougang.
 * 🇷🇺 – The Krasnodar tramway is extended from Solnechnaya to Ulitsa Petra Metalnikova.

April

 * April 1
 * 🇨🇳 – Line 7 of the Hangzhou Metro is extended from Citizen Center to Wushan Square, and Line 9 is extended from Coach Center to Guanyintang.
 * 🇬🇧🏴󠁧󠁢󠁳󠁣󠁴󠁿 – ScotRail takes over from Abellio ScotRail as operator of last resort of the ScotRail franchise.
 * 🇮🇳 April 2 – The first phases of Lines 2 and 7 of the Mumbai Metro open.
 * 🇨🇿 April 9 – Line 5 of the Prague tram network is extended from Sídliště Barrandov to Holyně.
 * 🇵🇱 April 23 – Line 10 of the Poznań tram network is extended from Lechicka/Naramowicka to Błażeja.
 * 🇩🇪 April 25 – Line 2 of the Darmstadt tram network is extended from Hochschulstadion to TU-Lichtwiese.
 * April 29
 * 🇨🇳 – Line 1 of the Shaoxing Metro is extended from China Textile City to Fangquan.
 * 🇨🇳 – Line 5 of the Fuzhou Metro opens.

May

 * May 1
 * 🇨🇳 – Line 7 of the Guangzhou Metro is extended from Guangzhou South Railway Station to Meidi Dadao.
 * 🇨🇳 – Opening of the first phase of the Fenghuang Maglev.
 * 🇭🇰 May 6 – The MTR retires Metro-Cammell EMUs after 40 years of service.
 * 🇭🇰 May 15 – The MTR East Rail line is extended across Victoria Harbour to Hong Kong Island.
 * 🇪🇸 May 17 – Line 10 of Metrovalencia opens.
 * 🇺🇸 May 20 – The Tempe Streetcar opens in Tempe, Arizona.
 * May 24 – The central section of Crossrail opens, and Crossrail and TfL Rail are officially branded the "Elizabeth line".
 * May 28
 * 🇩🇰 – The Odense Letbane opens.
 * 🇰🇷 – The Shinbundang Line of the Seoul Metropolitan Subway is extended from Gangnam to Sinsa, and the Sillim Line opens.
 * 🇰🇿 May 30 – Line 1 of the Almaty Metro is extended from Moskva to Bauyrzhan Momyshuly.
 * 🇫🇷 May 31 – Line 12 of the Paris Metro is extended from Front Populaire to Mairie d'Aubervilliers.

June

 * 🇩🇪 June 3 – Garmisch-Partenkirchen train derailment: A double-decker Regionalbahn passenger train derails near Burgrain in Bavaria, killing four people and injuring many more.
 * 🇨🇳 June 10 – Line 3 of the Hangzhou Metro is extended from Chaowang Road to West Wenyi Road, and the branch from South Xixi Wetland to Shima opens.
 * 🇦🇺 June 12 – The Gawler railway line reopens after an 18-month closure due to the electrification of the line.
 * June 16
 * 🇨🇳 – Opening of the Hotan–Ruoqiang railway, completing a 2,712-km loop line around the Taklamakan Desert.
 * 🇲🇾 – Partial opening of MRT Putrajaya line, Malaysia's fifth metro line, from Sungai Buloh/Kwasa Damansara to Kampong Batu.
 * 🇨🇳 June 18 – Line 4 of the Chongqing Rail Transit is extended from Tangjiatuo to Huangling.
 * 🇨🇳 June 20 – The Chengjiao line of the Zhengzhou Metro is extended from Xinzheng International Airport to Zhengzhou Hangkonggang Railway Station.
 * 🇨🇳 June 24 – Line 10 of the Hangzhou Metro is extended from Cuibai Road to Xueyuan Road.
 * 🇨🇳 June 25 – The Jiaxing Tram is extended from Jiaxing Railway Station to East Zhongshan Road/Anle Road.
 * 🇵🇭 June 26 – Reopening of the PNR South Main Line stretch from San Pablo to Lucena after a period of suspension starting October 2013, as part of the PNR South Long Haul.
 * 🇨🇳 June 28 – Line 6 of the Changsha Metro opens.
 * 🇨🇳 June 29 – Line 5 of the Kunming Metro opens.
 * 🇵🇱 June 30 – Line M2 of the Warsaw Metro is extended west from Księcia Janusza to Bemowo.

July

 * 🇪🇸 July 1 – Connection between Madrid Atocha and Madrid Chamartín opens.
 * 🇹🇷 July 2 – Line T2 of the Bursa tramway opens.
 * 🇪🇬 July 3 – Opening of the initial route of the Cairo Light Rail Transit.
 * 🇫🇷 July 6 – Île-de-France tramway Line 13 opens.
 * 🇮🇳 July 14 – Line 2 of the Kolkata Metro is extended from Phoolbagan to Sealdah.
 * July 17 – Line 1 of the West Midlands Metro is extended from Birmingham Library to Edgbaston.
 * July 18 – London Overground extension to Barking Riverside opens.
 * 🇨🇳 July 22 – Opening of the initial section of the Dali–Ruili railway.
 * 🇺🇸 July 29 – Amtrak extends the Ethan Allen Express to Union Station in Burlington, Vermont.
 * 🇨🇳 July 30 – Four infill stations open on Line 19 of the Beijing Subway.

August

 * 🇨🇳 August 6 – The Chongqing Rail Transit Jiangtiao line opens between Tiaodeng and Shengquansi.
 * 🇺🇸 August 21 – The SEPTA Regional Rail Media/Elwyn Line is extended from Elwyn to Wawa, and the line is renamed the Media/Wawa Line.
 * 🇨🇳 August 28 – Line 6 of the Fuzhou Metro opens.
 * August 29
 * 🇫🇷 – Line T3 of the Caen tramway is extended from Collège Hawking to Fleury-sur-Orne.
 * 🇵🇱 – Opening of the section between Łagiewniki and Kurdwanów on the Kraków tramway.
 * 🇨🇳 August 30 – Full opening of the Jinyi section of Jinhua Rail Transit's Jinyidong line.
 * 🇷🇺 August 31 – Opening of the Yekaterinburg interurban tram Route 333, connecting Yekaterinburg to Verkhnyaya Pyshma.

September

 * 🇮🇳 September 1 – The Kochi Metro is extended from Pettah to SN Junction.
 * 🇨🇳 September 6 – Opening of the initial section of the Changde–Yiyang–Changsha high-speed railway.
 * 🇱🇺 September 11 – Line T1 of the Luxembourg tramway is extended to Lycée Bonnevoie.
 * 🇫🇷 September 12 – RATP introduces automated trains on Line 4 of the Paris Metro.
 * 🇧🇴 September 13 – Opening of the Red Line and the first phase of the Green Line of Mi Tren in Cochabamba.
 * 🇫🇷 September 20 – Line B of the Rennes Metro opens.
 * September 22
 * 🇨🇳 – Hangzhou Metro Line 3 is extended from West Wenyi Road to Wushanqiancun, Line 10 is extended from Xueyuan Road to Huanglong Sports Center, and Line 19 opens.
 * 🇨🇳 – Opening of the final section (Huzhou–Hangzhou) of the Shangqiu–Hangzhou high-speed railway.
 * 🇯🇵 September 23 – Opening of the initial section of the Nishi Kyushu Shinkansen.
 * 🇨🇦 September 24 – Line 1 Yonge–University of the Toronto subway introduces automatic train control across the full length of the line.
 * 🇵🇱 September 28 – Line M2 of the Warsaw Metro is extended east from Trocka to Bródno.
 * September 30
 * 🇨🇳 – Line S8 of the Nanjing Metro is extended south from Taishanxincun to Changjiangdaqiaobei.
 * 🇨🇳 – Line 2 of the Dalian Metro is extended from Xinzhaizi to Dalian North railway station.
 * 🇨🇳 – Line 6 of the Zhengzhou Metro opens from Jiayu to Changzhuang.
 * 🇺🇸 – All rail service between Irvine and Oceanside, California was suspended due to coastal erosion under the track in San Clemente. Service along the Surf Line was restored the following April.

October

 * October 2
 * 🇮🇳 – The East-West Corridor of the Ahmedabad Metro begins service.
 * 🇹🇷 – Line M4 of the Istanbul Metro is extended from Tavşantepe to Sabiha Gökçen Airport.
 * 🇺🇸 October 3 – The Long Island Rail Road's Third Track Project between Floral Park and Hicksville is completed.
 * 🇹🇼 October 5 – The Kaohsiung Metro's Circular light rail is extended from TRA Museum of Fine Arts to Heart of Love River.
 * October 6
 * 🇪🇬 – Opening of Phase 3-1 of Cairo Metro Line 3, linking Attaba to Kit-Kat.
 * 🇮🇳 – The North-South Corridor of the Ahmedabad Metro begins service.
 * 🇺🇸 October 7 – The northern portion of the Los Angeles Metro Rail's K Line opens after several delays.
 * 🇦🇺 October 9 – Transperth's Airport line opens between High Wycombe and Claremont.
 * October 10
 * 🇬🇷 – Line 3 of the Athens Metro is extended from Nikaia to Dimotiko Theatro.
 * 🇲🇺 – The Metro Express is extended from Phoenix to Curepipe Central.
 * 🇫🇮 October 17 – Line 9 of the Helsinki tram network is extended from Pasila to Ilmalantori.
 * 🇺🇸 October 24 – Arrow begins service in Redlands, California.
 * 🇪🇸 October 26 – Cádiz Bay tram-train begun operation.
 * October 28
 * 🇨🇳 – Shenzhen Metro Line 11 is extended from Futian to Gangxia North and Line 14 opens.
 * 🇹🇷 – Line F4 of the Istanbul Metro network opens.
 * 🇮🇩 October 29 – The Trans-Sulawesi Railway opens between Barru and Pangkep on a limited basis.

November

 * 🇨🇿 November 1 – The Olomouc tramway is extended from Trnkova to U Kapličky.
 * 🇹🇷 November 5 – Gaziantep's Gaziray starts operation.
 * November 6 – Elizabeth line direct service commenced between Paddington and Shenfield and between Reading and Heathrow to Abbey Wood.
 * 🇨🇳 November 10 – Opening of Line 1 of the Nantong Rail Transit.
 * 🇸🇬 November 13 – Opening of Stage 3 of the MRT Thomson–East Coast line.
 * 🇺🇸 November 15 – The Washington Metro Silver Line is extended to Ashburn via Dulles International Airport.
 * 🇨🇳 November 18 – Line 10 of the Tianjin Metro opens.
 * 🇺🇸 November 19 – Central Subway in San Francisco opens after repeated delays.
 * 🇳🇴 November 21 – Opening of the Bergen Light Rail Line 2 between Byparken and Fyllingsdalen.
 * 🇮🇹 November 26 – The first section of Milan Metro Line 4 opens between Dateo and Linate Aeroporto.
 * 🇨🇳 November 28 – Lines 6B and 12 of the Shenzhen Metro open.
 * 🇨🇳 November 29 – Nanhai Tram Line 1 extends from Sanshanxinchengbei to Linyuedong.

December

 * 🇨🇳 December 1 – Line 2 of the Ningbo Rail Transit extends from Congyuan Road to Honglian.
 * 🇫🇮 December 3 – Line M1 of the Helsinki Metro extends from Matinkylä to Kivenlahti.
 * 🇩🇪 December 9 – Opening of Wendlingen–Ulm high-speed railway.
 * December 11
 * 🇨🇿 – Opening of the Osová-Nemocnice Bohunice tram line in Brno.
 * 🇮🇳 – The Aqua Line of the Nagpur Metro is extended from Sitabuldi to Prajapati Nagar, while the Orange Line is extended from Kasturchand Park to Automative Square.
 * 🇳🇴 – The Follo Line opened after delays.
 * 🇨🇭 – Opening of the Limmattalerbahn, a LRT line connecting the Limmatvalley with Zurich as Line 20 in the network.
 * 🇺🇸 December 12 – Opening of the Medford Branch of the Green Line Extension to Somerville and Medford, Massachusetts.
 * 🇰🇷 December 17 - Paju's Uncheon Station on the Gyeongui-Jungang Line opens.
 * 🇵🇱 December 19 – The Silesian Interurbans is extended from Zagórze BMC (formerly named Zagórze Petla) to Zagórze Rondo Jana Pawla II.
 * 🇺🇸 December 20 – The PHX Sky Train is extended from Terminal 3 to Rental Car Center.
 * 🇺🇸 December 21 – Brightline opens new infill stations at Aventura and Boca Raton.
 * 🇦🇿 December 23 – The Purple Line of the Baku Metro is extended from Avtovağzal to Xocəsən.
 * December 26
 * 🇨🇳 – Line 5 of the Hefei Metro is extended from Wanghuchengxi to Jiqiao Road.
 * 🇨🇳 – Opening of Line 4 of the Qingdao Metro.
 * December 28
 * 🇧🇩 – The first phase of the Dhaka Metro from Utara to Agargaon opened.
 * 🇨🇳 – Opening of Line S1 of the Taizhou Rail Transit.
 * 🇨🇳 – Opening of the Yidong section of the Jinyidong line of the Jinhua Rail Transit.
 * 🇨🇳 – Opening of the Huangshi Modern Tram.
 * 🇨🇳 – Opening of Line 1 of the Pingshan SkyShuttle.
 * 🇨🇳 – Opening of Line 16 of the Shenzhen Metro.
 * 🇨🇳 – Line 1 of the Nanjing Metro is extended from Baguazhoudaqiaonan to Maigaoqiao, while Line 7 begins operation.
 * 🇨🇳 – Opening of Line 3 of the Foshan Metro.
 * 🇨🇳 December 29 – Line 6 of the Xi'an Metro is extended from Xibeigongyedaxue to Fangzhicheng.
 * December 30
 * 🇨🇳 – Line 7 of the Wuhan Metro is extended from Garden Expo North to Hengdian, Line 16 is extended from Zhoujiahe to Hannan General Airport.
 * 🇮🇳 – Opening of Line 3 of the Kolkata Metro.
 * 🇨🇳 December 31 – Line 16 of the Beijing Subway is extended from to.

North America

 * Awards presented by Railway Age magazine
 * 2022 Railroader of the Year: Keith Creel (CP) and Patrick J. Ottensmeyer (KCS)