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Siam BTS Station, viewing from Siam Paragon. | ||||||||||||||||
| General information | ||||||||||||||||
| Location | Pathum Wan Bangkok Thailand | |||||||||||||||
| Coordinates | 13°44′44.23″N 100°32′3.22″E / 13.7456194°N 100.5342278°E | |||||||||||||||
| Owner | Bangkok Metropolitan Administration (BMA) BTS Rail Mass Transit Growth Infrastructure Fund (BTSGIF) | |||||||||||||||
| Operator | Bangkok Mass Transit System Public Company Limited (BTSC) | |||||||||||||||
| Lines | ||||||||||||||||
| Platforms | 2 Island platform | |||||||||||||||
| Tracks | 4 | |||||||||||||||
| Connections | ||||||||||||||||
| Construction | ||||||||||||||||
Structure type | Elevated | |||||||||||||||
| Other information | ||||||||||||||||
| Station code | CEN | |||||||||||||||
| History | ||||||||||||||||
| Opened | 5 December 1999 | |||||||||||||||
| Electrified | Third rail 750 V DC | |||||||||||||||
| Passengers | ||||||||||||||||
| 2021 | 6,160,924 | |||||||||||||||
| Services | ||||||||||||||||
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Siam station (Thai: สถานีสยาม, RTGS: Sathani Sayam, pronounced [sā.tʰǎː.nīː sā.jǎːm]) is the cross-platform interchange station on the Sukhumvit and Silom Lines of the BTS Skytrain. It is Located on Rama I Road to the west of Pathum Wan intersection in the heart of Siam area, a shopping area in Pathum Wan district, Bangkok, Thailand. It is the largest and busiest station on the BTS with 40,000–50,000 passengers per day.

Siam station is one of four BTS stations utilising an island platform, the other being Samrong, Wat Phra Sri Mahathat and Ha Yaek Lat Phrao, and is the only station on the Silom line to feature an island platform. At Siam, this is to facilitate transfer between lines. The upper level allows transfer between trains heading to Khu Khot and the National Stadium. The lower interchange level allows transfers between trains heading to Bang Wa and Kheha.
The station is located on Rama I Road to the west of Pathum Wan intersection in the heart of Siam area. The station is linked via skybridges to the Siam Square One, Siam Paragon, Siam Center and Centerpoint of Siam Square shopping centres. It is also adjacent to Siam Square. Additionally, an elevated walkway (called Sky Walk) connects Siam station to Central World Plaza, the Ratchaprasong junction and Chit Lom station.
| Floor 4 (Platform) |
Platform 2 | Sukhumvit Line towards Khu Khot (Ratchathewi) |
| Island platform, doors will open on the left; doors will open on the right | ||
| Platform 4 | Silom Line towards National Stadium (Terminus) | |
| Floor 3 (Platform) |
Platform 1 | Sukhumvit Line towards Kheha (Chit Lom) |
| Island platform, doors will open on the right; doors will open on the left | ||
| Platform 3 | Silom Line towards Bang Wa (Ratchadamri) | |
| Floor 2 (Ticket Booths) |
ticket sales floor | Exit 1-6, BTS Passenger and Tourist Service Center Sale of tickets, ticket vending machines, shops Siam Paragon, Siam Center, Centerpoint Siam Square, CentralWorld - Royal Sky Walk |
| Ground Floor (Street Level) |
- | Bus stop, Siam Square Scala Cinema, Novotel Hotel, Wat Pathum Wanaram, Royal Thai Police Police General Hospital, Faculty of Pharmaceutical Science, Chulalongkorn University, Faculty of Veterinary Science, Chulalongkorn University and Chulalongkorn University |
BMTA BUS
Smart BUS
CU POP BUS
Other interchange stations in Bangkok with paid area integration.