Installation started on 4 October 2011 and started operations since 22 December 2011 with Marsiling.
The government came up with a proposal to build the North South Line Woodlands Extension in 1990 with the aim of extending the then existing North-South and East-West lines, thus connecting Choa Chu Kang in the West to Yishun in the North.
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HHPSDs started operation from 22 December 2011 with Admiralty.
International Space Station | station | Riccarton Junction railway station | Fuji Station | London King's Cross railway station | Shōnandai Station | Independent station (North America) | independent station | Central railway station, Sydney | London Victoria station | College Station, Texas | Union Station | McMurdo Station | Euston railway station | Cape Canaveral Air Force Station | St Pancras railway station | Jingū-mae Station | Amsterdam Centraal railway station | Luxembourg railway station | Jinshajiang Road Station | Siple Station | Edinburgh Waverley railway station | College Station | Perth railway station | London Waterloo station | Jinyun Road Station | Naval Station Norfolk | Mandurah railway station | Liverpool Street station | Hökarängen metro station |