Don Mueang–Suvarnabhumi–U-Tapao high-speed railway

Don Mueang–Suvarnabhumi–U-Tapao high-speed railway
Overview
StatusUnder Construction
LocaleThailand
Termini
Stations9
Service
TypeHigh-speed rail
Operator(s)Asia Era One Company Limited
Depot(s)Khlong Tan (Urban route) Chachoengsao (Inter city route)
Rolling stockSiemens Desiro Class 360/3 (Urban route) CR300AF (Inter city route)
History
Planned opening2029
Technical
Line length220 km (140 mi)
Track gauge1,435 mm (4 ft 8+12 in)
Operating speed160 km/h (urban route)
250 km/h (inter city route)

The Don Mueang–Suvarnabhumi–U-Tapao high-speed railway, officially known as the High-Speed Rail Linking Three Airports Project (Thai: โครงการรถไฟความเร็วสูงเชื่อม 3 สนามบิน) is the second High-Speed rail line project in Thailand, being due to open in 2029 between Don Mueang International Airport, Suvarnabhumi Airport and U-Tapao International Airport. It will be operated by Asia Era One Company Limited, a special-purpose vehicles by the consortium of Charoen Pokphand Group Company, Limited (CP) and partners Ch. Karnchang PLC. (CK), Bangkok Expressway and Metro PLC. (BEM), Italian-Thai Development PLC. (ITD) and China Railway Construction Corporation Limited (CRCC).

This project is part of the Eastern Economic Corridor of Thailand.

Construction on the project is yet to begin as of January 2025, but work could begin as soon as April 2025 pending amendments to the contract between the government and consortium.