Line 2 (Shanghai Metro)

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.

Line 2 platforms at Lujiazui station

East of the West Nanjing Road, line 2 heads eastward along West Nanjing Road, passing under the South-North Elevated Road. It then turns northeast into the People's Square,[42] and interchange with lines 1 and 8. East of the People's Square station, the subway line moves under East Nanjing Road to the East Nanjing Road.[43] Leaving the Huangpu District of Shanghai, the line heads under the Huangpu River and enters the Pudong New Area of Shanghai. The metro line passes the Oriental Pearl TV Tower and the World Finance Center near its station at Lujiazui. The line then runs under Century Avenue and heads southeastward to the Dongchang Road. Line 2 then heads to the Century Avenue, the largest interchange station that serves lines 4, 6 and 9 as well. Line 2 continues southeastward along Century Avenue to the Shanghai Science and Technology Museum. From here, the line turns southward through Century Park to the Century Park. From here, the line turns southeast and then east as it enters the Longyang Road, an interchange with lines 7 and 16 as well as the Shanghai Maglev Train.

From the Longyang Road, the metro line heads eastward. Line 2 heads eastward, running under Zuchongzhi Road to the Zhangjiang Hi-Tech Park station. The line heads northeastward under Zuchongzhi Road to the Jinke Road and Guanglan Road stations. Line 2 then veers away from Zuchongzhi Road and heads under the Waihuan Expressway to the Tangzhen and Middle Chuangxin Road stations, turning south. Heading southward, it heads through the East Huaxia Road and turns back east, running under Chuanhuan Road. Line 2 then passes through the Chuansha. Heading away from Chuanhuan Road, the metro line then enters the Lingkong Road and Yuandong Avenue stations along Huazhou Road before turning southeast. Line 2 then begins running parallel to the Shanghai Maglev Train as it runs under the Yingbin Expressway and enters the Haitiansan Road. From here, line 2 continues south to its terminus at the Pudong International Airport, which serves Shanghai Pudong International Airport.

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.

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.

• On 28 October 2006, Dongfang Road was renamed as the Century Avenue after station renovation for line 2 and the opening of line 4.
• October 2006, Middle Henan Road was renamed as the East Nanjing Road.

Siemens Transportation Systems equipped this line with an overhead contact line (cantilever material: galvanized steel) and 7 DC traction power supply substations.[47]

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. The Metro line 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 series).[48][49]

When line 2 was opened to traffic, the AC02 train where not available. Therefore, some of the DC01 and AC01 series trains were borrowed from line 1.

All are 8-car Type A[lower-roman 1] rolling stock.

• 
  02A01 train
• 
  02A01 train with “Love Live!” livery
• 
  02A02 train
• 
  02A04 train before being expanded to 8 cars
• 
  02A05 train

When line 2 was first opened to traffic, the AC02 trains did not arrive, so some DC01 and AC01 trains were seconded from line 1.

All are type A as described above.