MRTA MRT station

The MRT Orange Line (Thai: ) is an under-construction rapid transit line of the Mass Rapid Transit Authority of Thailand (MRTA) in the Bangkok Metropolitan Area, Thailand. When fully completed, the MRT Orange line will be 35.9 km (22.3 mi) long with 29 stations (7 stations will be elevated for 8.9 km (5.5 mi) and 22 will be underground for 27 km (16.8 mi)), including an interchange with the current Thailand Cultural Centre Station of MRT Blue Line). The MRT Orange Line is divided into two sections: the 22.5 km (14.0 mi) Eastern Section, running from Yaek Rom Klao to Thailand Cultural Centre, and the 13.4 km (8.3 mi) Western Section, extending from Thailand Cultural Centre to Bang Khun Non. Construction of the Eastern Section commenced in June 2017, and civil works were completed 100% as of June 2023. However, delays in awarding contracts for the signaling systems and rolling stock postponed the line’s opening. In December 2024, Bangkok Expressway and Metro Public Company Limited (BEM) signed a contract with Siemens Mobility and its consortium partners to supply rolling stock and signaling systems for both sections of the line. On August 6, 2025 the MRTA announced that the Eastern Section is projected to open to the public in late-2027 earlier than the previously announced opening date of 2028. Construction of the Western Section began in July 2024. As of the end of July 2025, civil construction had progressed to 14.06%. This section is expected to require approximately six years for completion, with an anticipated opening in July 2030.

The MRT Orange Line will travel along a mostly east-west axis from Bangkok's eastern suburbs, passing through the city center and Ko Rattanakosin, before serving Thonburi on the west bank of the Chao Phraya River. The initial phase of the Orange Line will travel along an elevated structure above Ramkhamkhaeng Road from Yaek Rom Klao station, near the Ramkhamhaeng-Suwinthawong Junction in Min Buri District, to Ban Ma Junction in Bang Kapi District for 7.5 km (4.7 mi) before transitioning underground. The line will continue to travel southwest under Ramkhamhaeng Road until its intersection with Rama IX Road, whence it will proceed westward under Rama IX Road before terminating at Thailand Cultural Centre. Interchanges for this segment will be available to MRT Pink Line at Min Buri, MRT Yellow Line at Yaek Lam Sali, and the MRT Blue Line at Thailand Cultural Centre. The western section of the MRT Orange Lin will travel west from Thailand Cultural Centre Station via Din Daeng housing estates and Bangkok City Hall 2 to Vibhavadi Rangsit Road, Sam Liam Din Daeng Junction. It will follow Ratchaprarop Road towards Pratunam before following Phetchaburi Road and Lan Luang Road as the alignment approaches Ko Rattanakosin. The line will travel under Ratchadamnoen Avenue to serve Sanam Luang and Banglamphu before crossing the Chao Phraya River near Phra Pinklao Bridge. Once in Thonburi, the line will follow the Bangkok Noi spur line of the SRT commuter train before terminating at Bang Khun Non, located at Charan Sanitwong road, where there will be an interchange with the MRT Blue Line. In addition to interchanging with the MRT Blue Line, the western segment will also include an interchange to the Airport Rail Link at Ratchaprarop station, the BTS Sukhumvit Line at Ratchathewi Station, the MRT Purple Line at the future Democracy Monument station. A further extension to Taling Chan railway station is envisioned.

Data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).