Chengdu's subway system will boast nine lines and some 104.1 km of track within five years if all goes as planned, announced the Chengdu Metro Co. in an official statement released earlier this month.
The plan, which covers the second leg of construction on the Chengdu metro for the years 2013 to 2017, states that by the year 2020, there will be 332 km of track in the city. These figures seem to include lines under construction as well as those in use.
Chengdu Metro Co. also released more detailed information about the first five subway lines:
Line 1 (Phase 1 and Line 1 southward extension): Taisheng Lake to Guangdu (23.9 km). Construction on the southward extension is expected to begin within the upcoming year and is expected to last two to three years.
Line 2 (Phase 1, eastward and westward extensions): Xipu to Longquan (40.9 km). Construction on the eastward extension is expected to start by year's end.
Line 3 (Phase 1): Tianhui Town to Hongpailou south (19.7 km). Construction on the line is scheduled to begin in 2012, and construction on a westward extension that will go in the direction of Shuangliu is planned to start in 2015.
Line 4 (Phase 1): Gongping to Shuanglin Lu (19.6 km)
These four lines will form the backbone of a comprehensive metro network in Chengdu and its surrounding areas and will serve an estimated 2 million passengers daily by 2015.
Further expansions are planned for a 2020 completion, including Phase 3 of Line 1, Phase 2 of Lines 3 and 4, Phase 1 of Lines 5, 6, and 7 (a loop between the north, east, and south train stations), and Phase 1 of Lines 9 and 10 (to Airport Bay T2).
By that time, daily passenger volume is expected to increase to 6 million.
A publication released by the city in 2004 included plans for a total of four light-rail lines in Chengdu; the 2011 report increases the number of planned lines to 23 and increases the total track length from 274.15 to 938 km. Among these are eight subway lines with a total length of 371 km, nine high-speed-rail lines with a length of 475 km, and two train tracks, covering 92 km.
Total passenger volume is expected to increase from 6.8 million to 18 million rides per day.