Seoul Subway Line 7 of the Seoul Metropolitan Rapid Transit Corporation was built 1990-96 (Jangam-Konkuk Univ.) and was completed 1 Aug. 2000 (central section 17 km. Konkuk University to Sinpung); the western section between Sinpung and Onsu was put into service on 29 Feb. 2000. This north-south line does not run through the city centre but links Gangnam directly to the northern parts of town.
The future plan is an extension to Incheon Subway Line 1 to relieve the traffic congestion in western Seoul and northern Incheon. 9 stations will be added by 2010 for the 9.8 km extension, starting from Onsu Station of Line 7 and ending at Bupyeong-gu Office Station of Incheon Subway Line 1. Current length: 46.9 km.
South of the river it provides a much less crowded atmosphere than the line 2 and is recommended if one has no choice but to take the train during rush hour. However, stations are not quite in the centre of everything as is often the case with line 2, though a 20-minute walk southward will take you down to the other green line. For example, Gyobo Books in Gangnam is actually exactly halfway between Gangnam Station on line 2 and Nonhyeon Station on line 7.
The trains manufactured for the initial opening stage (stations Jangam and Kunkuk University) in 1996 were manufactured by DaeWoo Heavy Industries between 1995 and 1996 and they used inverters from GEC-ALSTOM.
For the second opening stage between Shinpung and Onsu and in preparation for the opening of stations Shinpung and Kunkuk University, Hanjin Heavy Industries manufactured new trains using Toshiba inverters. Currently, all line 7 trains are being modified to be fire resistant.
||Daewoo and Hanjin
||Daewoo: 1995-1996 / Hanjin: 1999-2000
|Maximium Rated Speed
|Maximium Operation Speed
|Average Operation Speed
|Length of each car
|Width of each car
|Height of each car
||VVVF(Variable Voltage, Variable Frequency) Inverter Control Method
|Rate of Acceleration
|Rate of Deceleration
|Rate of Emergency Deceleration
||ATS, ATC, ATO||
|Signal Systems in use
||ATS, ATC (All Tracks)||
Train Car Composition
Side facing Jangam < 71xy - 72xy - 73xy - 74xy - 75xy - 76xy - 77xy - 70xy > Side facing Onsu.
Side facing Jangam < Tc - Mp - M - T - T - Mp - M - Tc > Side facing Onsu.
Tc: Control Trailer Mp: Motor Car w/ Pantograph M: Motor Car w/o Pantograph T: Trailer.