Chengdu Metro (Chinese: 成都地铁) is a metro system in Chengdu currently under construction. A rapid transit, underground, subway, elevated railway or metro(politan system is an electric passenger railway ( located in southwest People's Republic of China, is the capital of Sichuan province and a Sub-provincial city. It will initially have one line, Line 1 which started construction in December 2005 and is expected to be completed by 2010. Year 2005 ( MMV) was a Common year starting on Saturday (link displays full calendar of the Gregorian calendar. For the film see 2010 The Year We Make Contact. For the book see 2010 Odyssey Two. There will be five lines constructed in the first phase, covering 126km with 116 stations including 11 interchange stations. Line 1 will have 15 stations at first along the 15. 1 kilometre route. The first phase will start from a station at Honghuayuan and end at Shiji Square. The system is the sixth metro system to be built in the People's Republic of China. Talk People's Republic of China) PEOPLE'S REPUBLIC OF CHINA ARTICLE GUIDELINES It will be operated by Chengdu Metro Limited Liability Company. [1]
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Construction
The construction of the first phase of Line 1, costing 7 billion yuan, will change the city. One of the metro planners said the construction of the metro will change the layout of residential quarters in the city, with residential areas moving out to the suburbs. [2] A natural ventilation system has been used in the construction of the underground section of Line 1 on the subway system from Southern Third Ring Road to Chengdu New Exhibition and Convention Center. Square ventilation units are built every 30m along the subway top to allow fresh air from the ground enter the construction site underground. The method is used in subway construction in other countries as it cuts the construction cost and it saves energy. The subway system is the first in China to adopt such a ventilation system during construction. Chengdu Metro is planning to set up a section for subway fire control and introduce the latest fire fighting technologies and vehicles. [3]
Rolling stock and technology
There will be 22 sets of three cars each when the line opens, made by a Chinese manufacturer, possibly the Changchun Car Company. Changchun Car Company is a Chinese rolling stock manufacturer and has a joint venture established with Bombardier Transportation to build Movia metro cars The trains will be air-conditioned and can hold up to a maximum of 1,200 people. An air conditioner is an Appliance, System, or mechanism designed to extract Heat from an area via a Refrigeration cycle The cars will be 2. 8m wide and 19m long. In the future, trains will be expanded to five cars. The rolling stock's average train speed will be 35km/h and its maximum speed will be 80km/h. The metro system will be equipped with Automatic Train Protection, Automatic Train Control, Automatic Train Stop and Automatic Train Operation. Automatic Train Protection (ATP in Great Britain refers to either of two implementations of a Train protection system installed in some Trains in order Automatic train operation (ATO ensures partial or complete automatic Train piloting and driverless functions Fire alarms, on-train/track systems, and automatic fare collection systems will also be installed. An automatic fire alarm system is designed to detect the unwanted presence of fire by monitoring environmental changes associated with combustion A minimum curve radius of 400m will be used where possible, though some restricted areas will have a curve radius of 300m. The maximum gradient will be 35% and the railway tracks will be laid to standard gauge (1435mm) using 60kg/m rail, allowing a maximum speed of 80km/h. In Vector calculus, the gradient of a Scalar field is a Vector field which points in the direction of the greatest rate of increase of the scalar The standard gauge (also named the Stephenson gauge after George Stephenson, or Normal gauge) is a widely-used Rail gauge. The power supply will be 750V DC with third rail collection and running rail return. Power supply is a reference to a source of Electrical power. A device or system that supplies Electrical or other types of Energy to an output load A third rail is a method of providing Electricity to power a railway through a continuous rigid conductor alongside the railway track or between the rails [1]
Network expansion
Seven lines are planned to be constructed over the next thirty years and five have been planned so far, with all around the city centre. When the whole of Line 1 is completed, it will have a length of 26. 7km with 11. 76km of underground tracks and 14. 9km of tracks at either ground level or elevated. There will be a depot at Huayang, two main substations, ten traction substations and one control centre. Line 1 will interchange with Chengdu North and Chengdu South railway stations. [1]
Future lines
- Line 2 — From Longquan East to Shiniu (50. 65km; 26 stations)
- Line 3 — From Hongxing to Banqiao South (49. Hongxing is a Village in the Tibet Autonomous Region of China. 28km; 22 stations)
- Line 4 — From Wenjiang to Xihe (38. Wenjiang District ( Chinese: 温江区 is a District of Chengdu, the capital of Sichuan Province, China. 9km, 19 stations)
- Line 5 — From Simaqiao to Jianghe (24. 63km; 13 stations)
- Line 6 and 7 — In planning stage, routes not confirmed
References
- ^ a b c Chengdu Metro Project, China, Railway Technology, Retrieved on 2007-03-13
- ^ Huang Zhiling and Bao Xinyan, Work begins on new metro schemes, China Daily, 2005-12-29
- ^ Chengdu Municipal Government, Subway to Adopt Natural Ventilation, Retrieved on 2007-03-13
External links
- Official Website (In Chinese)
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