Line 2 is an east–west line in the Shanghai Metro network. With a length of nearly 64 km (40 mi), it is the second longest line in the metro system after line 11. Line 2 runs from East Xujing in the west to Pudong International Airport in the east, passing Hongqiao Airport, the Huangpu river, and the Lujiazui Financial District in Pudong. With a daily ridership of over 1.9 million, it is the busiest line on the Shanghai Metro.[4] The eastern portion of the line, from Guanglan Road to Pudong International Airport, was operated almost[clarification needed] independently from the main segment until April 19, 2019, when through service began. The line is colored light green on system maps.
History
The first section of line 2 was opened on October 28, 1999, from Zhongshan Park to Longyang Road. This section, which included 12 stations, totaled 16.3 kilometres (10.1 mi). A year later coinciding with the tenth anniversary of the development and opening up of Pudong, marking the official opening of the line, Zhangjiang Hi-Tech Park was added to the eastern part of the line, adding 2.8 kilometres (1.7 mi).[5] Four new stations, located west of the Zhongshan Park station, opened in December 2006, extending the line to Songhong Road. This section added 6.15 kilometres (3.82 mi) to the line. Four years later, in preparation for the 2010 Shanghai World Expo, the line was significantly expanded. In February, the Zhangjiang Hi-Tech Park station was rebuilt. In addition, another eastern segment took line 2 to Guanglan Road.[6][7][8] A month later, the line was extended westward to East Xujing, adding 8.0 kilometres (5.0 mi) to the line including a stop at Hongqiao Airport Terminal 2.[9] On April 8, an eastward extension added 8 stations to the line, totaling 26.6 kilometres (16.5 mi) and taking line 2 to Pudong International Airport.[10][11] On July 1, Hongqiao Railway Station opens to the public with the opening of the railway station of the same name.
In October 2006, it was decided to rename three stations on line 2 by the end of the year,[12][13] adopting a new naming scheme: metro stations, unlike bus stops, are no longer supposed to be named after neighbouring vertical streets, but famous streets and sights in the vicinity, making it easier for visitors to find these places. The renamed stations are Century Avenue (formerly Dongfang Road), East Nanjing Road (formerly Middle Henan Road) and West Nanjing Road (formerly Shimen No. 1 Road).
Up to April 19, 2019, when an eight-car train started serving the whole line 2 in a regular schedule,[16] the east section of line 2 was served by a four-car fleet. Line 2 had a piecewise service pattern during morning peak hours whereby the suburban segment between Guanglan Road station and Pudong International Airport station is partially served by a four-car fleet in addition to the regular eight-car fleet serving the whole line. Already since 28 December 2018, during off-peak times, an eight-car fleet from East Xujing or Songhong Road station may terminate at Pudong International Airport station, but most trains still terminate at Guanglan Road station or Tangzhen (only during peak hours).
^On Sunday to Thursday, there are two trains taking passengers from Hongqiao Railway Station (at 23:04 and 23:30) and airport after normal operation time and only stop at selected stations.
^Virtual transfer with line 15 – passengers who hold the Shanghai Public Transportation Card and transfer within 30 minutes of exiting the station are able to transfer to other lines without exiting the system. An underground passage is currently under construction.
^Virtual transfer with line 12 or line 13 – passengers who hold the Shanghai Public Transportation Card and transfer within 30 minutes of exiting the station are able to transfer to other lines without exiting the system.
^Former station, in operation between 26 December 2000 and 14 February 2010.[23][24][25] Current station opened 24 Feb 2010.[26]
Important stations
East Xujing to West Nanjing Road
The line begins at East Xujing at the intersection of Xumin East Road and Zhuguang Road.[28][29] The line heads northeastward under Xumin East Road for about 0.8 kilometres (0.50 mi) before veering off the road and heading east, passing under Huaxiang Road. The line then enters the interchange station serving the Hongqiao Railway Station.[30] This station is an interchange with line 10. Shortly thereafter, the line enters the Hongqiao Airport Terminal 2.[31] line 2 then turns northward until it meets Tianshan Road and turns east again, roughly running parallel under Tianshan Road. Along this road, the line enters the Songhong Road,[32]Beixinjing,[33] and Weining Road stations.[34] At the Loushanguan Road, line 2 veers away from Tianshan Road, heading northeastward.[35] The line then enters the Zhongshan Park along Changning Road, an interchange with lines 3 and 4.[36][37] The subway line then runs parallel under Changning Road for a short distance before heading east under Yuyuan Road. Along Yuyuan Road, there is a station at Jiangsu Road, an interchange to line 11.[38][39] East of this station, the line swerves away from Yuyuan Road and runs under Yongyuan Road, which merges into West Nanjing Road, where line 2 enters the Jing'an Temple, an interchange to line 7.[40] Just before entering the West Nanjing Road, the metro line veers away from West Nanjing Road to Wujiang Road.[41] Line 2 comes back under the road shortly thereafter.
As part of the phase IV extension of Shanghai Pudong International Airport terminal T3 will be built south of the current terminals T1, T2 and satellite terminal. The terminal T3 will be served by extending line 2 south by one station.
West expansion
Construction started on a one station west extension from East Xujing to Panxiang Road[44] in June 2021.[45] The Panxiang Road station is south of the Panlong Road on line 17, these are separate stations and will not have an interchange. The extension of Metro line 2 to the west will improve the connection of the Hongqiao business hub to the city center and Pudong.
Siemens Transportation Systems equipped this line with an overhead contact line (cantilever material: galvanized steel) and 7 DC traction power supply substations.[47]
Signaling
As the first part of Line 2 was opened 20 years ago and the line has been experiencing congestion after rapid ridership growth. In 2014, Shanghai Metro investigated upgrading the existing signal system of line 2 (US&S United Signal AF900, fixed block CBTC) to increase the frequency of trains and reduce congestion. In October 2020, a new CASCO Tranavi (moving block CBTC, DTO) signaling system was overlaid on the existing signaling system on Line 2. Therefore, line 2 will be the first in the world to have two signal systems, the new primary one for day-to-day operations and the existing older one serving as a backup system during signal faults. Intervals of trains on Line 2 could be reduced to 90 seconds thanks to the new signal system with the backup system capable of maintaining two minute headways. For the new system, a total of 100 trains on Line 2 will have their onboard signal systems upgraded. As of 2020 upgrading work was finished on 31 trains (the new 02A05 trains).[48][49] The new signalling system was put into operation on January 27, 2024, which made it the longest signalling system renovation project in China. [50]
Rolling stock
When line 2 was opened to traffic, the AC02 trains were not available. Therefore, some of the DC01 and AC01 trains were borrowed from line 1.
(16 trainsets) In 2008, AC02 trains were gradually expanded into 8-car trains, trainset number 201-216 were expended using the middle carriages of 217-224. New name: 02A01.
(8 trainsets) The redundant Tc carriages of the 217-224 and were used for line 1 together with newly purchased middle carriages and reorganized into AC01, the number was changed to 130-137.
Since 2019 expanded into 8 car trainsets (new name: 02A03). With the expansion of the east section of line 2 (Guanglan Road station - Pudong International Airport station) capable to cater 8 carriages since 28 December 2018, these trainsets have been expended.
^Tc: Trailer with cab; Mp: EMU with pantograph; M: EMU without pantograph.
^ADtranz was acquired by Bombardier in May 2001. Subsequently, in January 2021 it was acquired by Alstom.
^ abcClass A carriage: 21-24m in length, 3.0m in width and 3.8m in height; Capacity: about 310 people.
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Rapid transit
Shanghai Metro
