Cross Island Line

Cross Island Line
Construction works at Serangoon North station
Overview
Native name	Malay: Laluan MRT Rentas Pulau Chinese: 跨岛地铁线 Tamil: குறுக்குத் தீவு ரயில் பாதை
Status	Under construction (Phase 1, 2 & Punggol Extension) Under planning (Phase 3 & Changi Terminal 5)
Owner	Land Transport Authority
Locale	Singapore
Termini	Aviation Park Changi Terminal 5 Pasir Ris Bright Hill Gul Circle Punggol
Stations	12 (Phase 1) 6 (Phase 2) 4 (Phase 3) 1 (Changi Terminal 5) 3 (Punggol Extension)
Color on map	Lime (#97C616)
Service
Type	Rapid transit
System	Mass Rapid Transit (Singapore)
Services	3
Operator	TBA
Depot	Changi East
Rolling stock	CRRC Qingdao Sifang CR151
History
Planned opening	2030 (2030) (Phase 1) 2032 (2032) (Phase 2 & Punggol Extension) mid-2030 (2030)s (Changi Terminal 5) late-2030 (2030)s (Phase 3)
Technical
Line length	29 km (18 mi) (Phase 1) 15 km (9.3 mi) (Phase 2) 10 km (6.2 mi) (Phase 3) 7.3 km (4.5 mi) (Punggol Extension) 5.8 km (3.6 mi) (Changi Terminal 5) 67 km (42 mi) (Total)
Character	Fully underground
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification	Overhead line, 1,500 V DC
Maps ■ Thomson–East Coast Line to Woodlands North  CR1  TE32  Changi Terminal 5 ■ Thomson–East Coast Line to Tanah Merah Changi East Depot  CR2  Aviation Park  CR3  Loyang  CR4  Pasir Ris East Sungei Tampines  EW1  ■ East–West Line to Tuas Link  CP1   CR5  Pasir Ris Sungei Api Api  CP2  Elias Tampines Expressway  CR6  Tampines North Kallang–P.L. Expressway  CR7  Defu Sungei Serangoon  PE4  ■ Punggol LRT East Loop  CP3  Riviera  PTC  ■ East Loop West Loop  NE17  ■ North East Line to Punggol Coast  CP4  Punggol  NE14  ■ North East Line to HarbourFront  CR8  Hougang  CR9  Serangoon North  CR10  Tavistock Central Expressway  CR11  Ang Mo Kio  NS16  ■ ← to Jurong East to Marina South Pier →  CR12  Teck Ghee Kallang River  CR13  Bright Hill  TE7  ■ ← to Woodlands North to Bayshore → Pan-Island Expressway  CR14  Turf City  DT6  ■ ← to Bukit Panjang to Expo →  CR15  King Albert Park  CR16  Maju Sungei Ulu Pandan  CR17  Clementi  EW23  ■ ← to Tuas Link to Pasir Ris → Ayer Rajah Expressway  CR18  West Coast  JE  ■ ← to Tengah to Kent Ridge → Sungei Pandan  CR19  Jurong Lake District Ayer Rajah Expressway Jurong Lake  CR20  CR20  CR21  Jurong Pier  JS12  ■← to Peng Kang Hill or Choa Chu Kang Sungei Lanchar  CR22  CR22  CR23  Gul Circle  EW30  ■ ← to Pasir Ris to Tuas Link → Depot at Tuas

The Cross Island Line (CRL) is a high-capacity Mass Rapid Transit (MRT) line currently under construction in Singapore. It will run in an east–west direction across the planning areas of Changi to Pioneer, passing through Pasir Ris, Hougang, Serangoon, Ang Mo Kio, Bukit Timah, Clementi, Jurong East and Boon Lay. From Pasir Ris, a branch of the line will extend to Punggol. Once fully operational, the 67-kilometre (42 mi) line will replace the East–West Line (EWL) as the longest line on the MRT network, serving approximately 26 stations. It will utilise the CRRC Qingdao Sifang CR151 electric multiple unit (EMU), running in a six-car formation. However, to cater to future demand, stations on the line will be built to accommodate eight-car trains.

Plans for the CRL were first announced in 2013. It is envisioned to serve various key hubs including the Jurong Lake District and the Punggol Digital District, offering an alternative east–west connection to alleviate passenger load on the EWL. Shortly after the announcement, some nature groups called for the diversion of CRL tunnels away from the Central Catchment Nature Reserve (CCNR). Despite the calls, the government decided to continue with the original direct route in 2019, citing commuting time, economic factors and long-term energy consumption. The alignment and stations of Phase 1 were finalised in 2019, followed by the Punggol branch in 2020, Phase 2 in 2022, and Phase 3 in 2026. The proposed full line is expected to have a daily ridership of over one million in the long term, and to cost an estimated S$40.7 billion.