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Circle Line

Circle Line

Everything you need to know about the Circle Line

The Circle Line (CCL), Singapore’s fourth rail line, connects all radial roads leading into the city while taking a circle route through residential neighborhoods. It is an underground, driverless, medium-capacity MRT line. The line currently connects Dhoby Ghaut (CC1) to HarbourFront (CC29) via Serangoon and is 35.5 kilometers long with 30 stations. Promenade (CC4) and Marina Bay (CE2) connect by a separate branch line known as the Circle Line Extension via Bayfront (CE1). The line is Singapore’s first medium-capacity rail line, with trains running in three-car instead of the typical six-car layout on earlier lines. The rolling stock gets housed in Kim Chuan Depot, which bills itself as the world’s big fully-underground railway depot. Stages 1 through 5 of the Circle Line the Circle Line Extension is currently running. The Circle Line will complete by a future line expansion known as “Circle Line Stage 6,” which is expected to be finished in 2025 and will close the Circle Line’s circular path between HarbourFront and Marina Bay with three extra stops.

Rolling Stock:

Electric multiple unit (EMU) trains with four doors on each side operate in a three-car layout on the Circle Line.Rolling stock for the Circle Line get made up of Alstom Metropolis C830 trainsets. A total of 40 trainsets get ordered as part of turnkey Contract C830, and they get currently stored in Kim Chuan Depot. They get built by Alstom in France between 2006 and 2008. For the Circle Line, Shanghai Alstom Metropolis C830C trainsets get ordered to boost capacity. A total of 24 trainsets get planned as part of Contract C830C, and they get likewise stabled at Kim Chuan Depot. These trains, which share a lot of design cues with their C830 relatives, were produced in China between 2014 and 2015 by Shanghai Alstom Transport Co. Ltd., a joint venture between Alstom and Shanghai Electric.

Alstom Metropolis C851E trainsets get ordered to increase the Circle Line’s capacity for Stage 6 of the Circle Line. Twenty-three trainsets in total get bought for the Circle Line version.

Timeline & History:

  • On May 28, 2009, the Circle Line Stage 3 opened, with trains running between the stations of Bartley and Marymount.
  • Beginning on April 17, 2010, trains will run between Dhoby Ghaut and Marymount stations on the Circle Line Stages 1 and 2.
  • Beginning on October 8, 2011, trains will run between Dhoby Ghaut and HarbourFront stations on the Circle Line Stages 4 and 5.
  • Opening of Circle Line Extension on January 14, 2012, linking Promenade to Marina Bay via Bayfront

Circle Line 6 Improvements:

LTA and SMRT have started several system improvements to the current Circle Line in anticipation of the completion of Stage 6 in 2025. (as of July 2019).These improvements comprise:

  • Signalling System
  • Power Supply System
  • The integrated supervisory control system’s hardware and software, as well as the communications system (ISCS)

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