lines 4, 6 and 9 as well. Line 2 continues southeastward along Century Avenue to the . From here, the line turns southward through Century Park to the . From here, the line turns southeast and then east as it enters the , an interchange with lines 7 and 16 as well as the Shanghai Maglev Train. Longyang Road to Pudong International Airport From the , the metro line heads eastward. Line 2 heads eastward, running under Zuchongzhi Road to the station. The line heads northeastward under Zuchongzhi Road to the and stations. Line 2 then veers away from Zuchongzhi Road and heads under the Waihuan Expressway to the and stations, turning south. Heading southward, it heads through the and turns back east, running under Chuanhuan Road. Line 2 then passes through the . Heading away from Chuanhuan Road, the metro line then enters the and 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 . From here, line 2 continues south to its terminus at the , which serves Shanghai Pudong International Airport. Future expansion East expansion 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 to Panxiang Road in June 2021. The Panxiang Road station is south of the 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. Station name change On 28 October 2006, Dongfang Road was renamed as the after station renovation for line 2 and the opening of line 4. October 2006, Middle Henan Road was renamed as the . Headways <onlyinclude> Technology Power supply Siemens Transportation Systems equipped this line with an overhead contact line (cantilever material: galvanized steel) and 7 DC traction power supply substations. 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