Circle Line (Singapore)
The Circle Line ( Chinese環線) is the fourth MRT line in Singapore . It is not yet a closed ring section, just a Ring ring. Construction work is currently underway to turn the line into a complete ring. Ring-shaped bypassing the city center is only possible by changing to other lines at the terminus. Upon completion, the line will have 31 stations and be 35.7 km long. The first section went into operation on May 28, 2009, the second and third followed on April 17, 2010, and another on October 8, 2011. Preliminary completion was planned for January 14, 2012. As of 2011, it was initially not planned to complete the route in the foreseeable future. Various subsidence of the ground above the tunnel led to construction delays.
The Circle Line is the second automated MRT line after the North East Line.
The Circle Line is the first medium-capacity line in Singapore. Each Circle Line train consists of three cars. As of May 2015, the daily number of drivers is 398,000. The line cuts travel time for commuters by shortening journeys between north, east and west Singapore and bypassing high-traffic transfer stations such as City Hall and Raffles Place . It is the third MRT line operated by SMRT after the north-south line and the east-west line .
history
The Circle Line was first referred to as the Marina Line in May 1998 and was originally planned as a 12-station subway line running from Chinatown and Dhoby Ghaut via the National Stadium to Kallang or Paya Lebar station. The Chinatown branch was later cut and reduced to 6 stations up to the stadium station (stadium). On the other hand, another extension towards Upper Paya Lebar was added in 2000. The Marina line has also been combined with an LRT line that runs from Paya Lebar via Serangoon and Bishan to Buona Vista and forms the Circle Line Stage 3 and 4 in 2001. Circle Line Stage 5 was completed in February 2002, as Stage 4 extended from Buona Vista to the World Trade Center to close the connection from the west to Sentosa, and eventually became the full Circle Line. Circle Line stations that were part of the original Marina line plans include Dhoby Ghaut, Bras Basah, Esplanade, Promenade, Nicoll Highway, and Stadium. The part of the previously planned marina line from Chinatown to the promenade is now part of the downtown line.
Construction began on March 13, 2002 for Stage 1, on September 5, 2002 for Stage 2, in May 2003 for Stage 3 and in January 2005 for Stages 4 and 5. The Circle Line should be gradual from 2006 to 2010 with an estimate Cost of S $ 6.7 billion, but the collapse of the Nicoll Highway resulted in the opening of the first leg being postponed to May 28, 2009. When the line was fully opened on October 8, 2011, construction costs had risen to almost S $ 10 billion. Due to the realignment of Nicoll Highway Station in a new location, the station is only two-thirds the size of the original plan before the collapse. It was located 100 meters from the original location. Some stations on the Circle Line were originally designed as "Shell stations". However, it was decided to open Caldecott and Haw Par Villa (previously Thomson and West Coast), making Bukit Brown the only unopened station on the line.
On April 20, 2004, a section of the tunnel for the Circle Line collapsed when a retaining wall used in tunnel construction gave way. This happened near the Nicoll Highway , not far from the Merdeka Bridge . The accident exceeded a collapse zone 150 meters (490 ft) wide, 100 meters (330 ft) long and 30 meters (98 ft) deep. Four workers died and three others were injured. A criminal investigation found the main contractor Nishimatsu Construction Company and joint venture partner Lum Chang Construction Company and their directors, as well as the main managers of the Land Transport Authority, responsible for the collapse. Several other officials and subcontractors have been reprimanded and warned in connection with the accident.
As a result of this accident, the first phase of the Circle Line, which opened in 2008, was completed on May 28, 2009 from Bartley to Marymount, on the other side of the Circle Line. The affected section was opened on April 17, 2010. The affected station was moved 100 meters (330 ft) from the scene of the accident and is now on Republic Avenue .
This accident had also led to stricter safety regulations for the construction of all future MRT lines. The relocation of the Nicoll Highway Station also meant it could no longer serve as a benchmark for the Bukit Timah Line , affecting the construction of the current Downtown Line . The last sections opened on October 8, 2011 (Caldecott to HarbourFront) and January 14, 2012 (Marina Bay Extension).
The proposal for the Circle Line Stage 6 began in 2003 to complete the circle from HarbourFront to Marina Bay, but was in the planning stage at the time. Several options have been considered to fill the gap, which is mainly a north route that goes through Tanjong Pagar West Station and Tanjong Pagar MRT Station, or a south route that goes through Singapore Harbor, commonly known as East Tanjong Pagar is known. The cost of closing the gap was estimated at 2010 prices at S $ 1½ to 2 billion.
On January 17, 2013, the Land Transport Authority (LTA) announced the Circle Line Stage 6 , which will finally close the circle. This four-kilometer extension runs between Marina Bay and HarbourFront . This expansion will connect commuters along the South Loop from Marina Bay to HarbourFront and is part of the redevelopment of the district at the Southern Waterfront Gateway . On October 29, 2015, LTA announced the station names for Circle Line Stage 6. Construction began on June 29, 2017, shortly after the Shenton Way Bus Terminal was relocated.
Stations
Trains on the Marina Bay branch line run to the Stadium, with journeys extended to Harbor Front at peak times.
| Abbreviation | station | crossing |
|---|---|---|
| CC1 | Dhoby Ghaut |
North-south line NS24 North-east line NE6 |
| CC2 | Bras Basah | |
| CC3 | Esplanade | |
| CC4 | promenade | Downtown Line DT15 |
| CC5 | Nicoll Highway | |
| CC6 | stage | |
| CC7 | Mountbatten | |
| CC8 | Dakota | |
| CC9 | Paya Lebar | East-west line EW8 |
| CC10 | MacPherson | Downtown Line DT26 |
| CC11 | Tai Seng | |
| CC12 | Bartley | |
| CC13 | Serangoon | North-east line NE12 |
| CC14 | Lorong Chuan | |
| CC15 | Bishan | North-south line NS17 |
| CC16 | Marymount | |
| CC17 | Caldecott | |
| (CC18) | (kept free) | |
| CC19 | Botanic Gardens | Downtown Line DT9 |
| CC20 | Farrer Road | |
| CC21 | Holland Village | |
| CC22 | Buona Vista | East-west line EW21 |
| CC23 | one-north | |
| CC24 | Kent Ridge | |
| CC25 | Haw Par Villa | |
| CC26 | Pasir Panjang | |
| CC27 | Labrador Park | |
| CC28 | Telok Blangah | |
| CC29 | HarbourFront | North-east line NE1 |
| CC30 | Keppel (under construction) | |
| CC31 | Cantonment (under construction) | |
| CC32 | Prince Edward Road (under construction) | |
| CE1 | Bayfront (after completion CC33) | Downtown Line DT16 |
| CE2 | Marina Bay (after completion CC34) | North-south line NS27 |
Opening dates
The Circle Line was opened in sections:
- May 28, 2009: Phase 3 (Bartley (CC12) - Marymount (CC16))
- April 17, 2010: Phase 1 & 2 (Dhoby Ghaut (CC1) - Bartley (CC12))
- October 8, 2011: Marymount - Harbor Front
- January 14, 2012: Promenade - Marina Bay (as branch line)
Web links
Individual evidence
- ↑ Archived copy ( memento of the original from June 21, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Circle line | Projects | Public Transport | Land Transport Authority ( s )
- ^ Cheong Colin: The Circle Line, Linking All Lines 2012, ISBN 978-981-4342-02-5 , p. 46.
- ↑ Circle Line Could cost taxpayers $ 10 trillion . AsiaOne Motoring. Archived from the original on October 8, 2011. Retrieved on August 21, 2016.
