Line 8 (Shanghai Metro)

Template:Short description Line 8 is a north-south line of the Shanghai Metro network. It runs from Template:Stl, in Yangpu District to Template:Stl, in Minhang. The line is colored blue on system maps.

History

The subway line's first phase began trial operation on September 17, 2007 and officially opened on December 29, 2007, running between Template:Stl and Template:Stl. The second phase, from Yaohua Road to Template:Stl began operation on July 5, 2009.

Two stations opened later than the rest of the line: Template:Stl in September 2012 and Template:Stl opened in April 2011.

On May 4, 2017 it was announced the third phase had been renamed the Pujiang line, and will be a new long automated people mover line running from Shendu Highway station to Huizhen Road station. It will use rubber tire Bombardier Innovia APM 300 technology. On January 13 Bombardier delivered the first out of 44 autonomous people movers to Shanghai. It opened on March 31, 2018.

colspan="7" style="text-align: center" bgcolor=#Template:Rcr | Shanghai Metro Line 8 opening history
Segment	Commencement	Opened	Length	Station(s)	Name	Investment
Shiguang Road — Yaohua Road	21 Dec 2001	29 Dec 2007		20	Phase 1	¥14.493 billion
Yaohua Road — Shendu Highway	27 Dec 2005	5 Jul 2009		8	Phase 2	¥5.332 billion
Oriental Sports Center		12 Apr 2011	Infill station	1
China Art Museum		28 Sep 2012	Infill station	1

Controversy

Even though Line 8 is a heavy rail rapid transit line, Class C trains designed for light metro lines consisting of 6 or 7 cars are being used throughout the line. Due to the trains relatively smaller loading gauge and capacity compared to Class A trains used on other Shanghai Metro lines, the line is extremely crowded. This has caused much doubt among the public in Shanghai Metro's ability to accurately predict passenger flows for future lines. It was revealed that Line 8 originally was forecasted to have a short term daily ridership of 400,000-500,000 people/day, which warrants the use of larger Class A trains on other Shanghai Metro lines. This is not surprising given Line 8 is planned to serve some of Shanghai's densest neighborhoods and several major attractions. However the forecast was revised many times and finally downgraded to 200,000 people/day through "internal negotiation and coordination", which allowed Shanghai Alstom, a company interested in manufacturing and selling Class C trains in Shanghai, to build trains for Line 8. Chief designer Yu Jiakang noted that in addition to short term solutions such as operating 7 car trains and reducing headways, last resort is to rebuild Line 8 as the loading gauges of Class C trains are incompatible with Class C trains. Additionally, parallel relief bus services have started operating. The initial 28 trainsets were 6-car consists. Due to overcrowding, subsequent train purchases (62 sets) were 7-car sets. There was a canceled plan to expand 08C01 stocks from the 6-car sets to 7-car sets.

Stations

Service routes

colspan="12" style="text-align: center" bgcolor=#Template:Rcr | Shanghai Metro Line 8 service routes
M - Mainline: Template:Stl ↔ Template:Stl C - Core: Template:Stl ↔ Template:Stl (not operating during working day peak) P - Peak: Template:Stl ↔ Template:Stl (only operating during working day peak)
Routes			Station name		Connections	Distance			Location	Open- ing	Plat- form
M	C	P	English	Chinese		km		min
●			Template:Stl			0.00	0.00	0	Yangpu	29 Dec 2007	Underground Side
●			Template:Stl			0.88	0.88	2
●			Template:Stl			1.07	1.95	5
●			Template:Stl			1.04	2.99	7
●	●	●	Template:Stl			0.85	3.84	9			Underground Island
●	●	●	Template:Stl			1.41	5.25	11
●	●	●	Template:Stl		Template:Rint	1.04	6.29	14
●	●	●	Template:Stl			0.88	7.17	16
●	●	●	Template:Stl		Template:Rint	0.81	7.98	17	Hongkou
●	●	●	Template:Stl			1.07	9.05	20			Underground Side
●	●	●	Template:Stl		Template:Rint	1.47	10.52	22			Underground Island
●	●	●	Template:Stl			1.27	11.79	25	Jing'an
●	●	●	Template:Stl			1.23	13.02	27
●	●	●	Template:Stl		Template:Rint	1.19	14.21	30
●	●	●	Template:Stl		Template:Rint Template:Rint	1.18	15.39	32	Huangpu		Underground Island & Side
●	●	●	Template:Stl		Template:Rint	0.74	16.13	34			Underground Island
●	●	●	Template:Stl		Template:Rint	0.96	17.09	36
●	●	●	Template:Stl		Template:Rint	0.85	17.94	38
●	●	●	Template:Stl		Template:Rint	1.12	19.06	40
●	●	●	Template:Stl			2.11	21.17	43	Pudong	28 Sept 2012
●	●	●	Template:Stl		Template:Rint	0.90	22.07	46		29 Dec 2007	Underground Side
●	●	●	Template:Stl		Template:Rint	0.90	22.97	48		5 July 2009	Underground Island
●	●	●	Template:Stl			1.13	24.10	50
●	●	●	Template:Stl		Template:Rint Template:Rint	1.67	25.77	53		12 April 2011
●		●	Template:Stl			1.83	27.60	57		5 July 2009
●		●	Template:Stl			2.57	30.17	60	Minhang
●		●	Template:Stl			2.61	32.78	64			Elevated Island
●		●	Template:Stl			1.39	34.17	66
●		●	Template:Stl			1.20	35.37	69
●		●	Template:Stl		Template:Rint Template:RintFengpu BRT	1.36	36.73	71

Important stations

• Template:Stl - At this station, passengers can transfer to line 3. Previously they must exit and re-enter the station, but a new linkway has been built via the shopping center.
• Template:Stl - Passengers can interchange to lines 1 and 2. This is also a very important station, as it is located at a major financial district as well as near many tourist attractions.
• Template:Stl: The first platform to platform interchange station in the Shanghai Metro network. Interchange with line 4.

Station name change

• On May 7, 2011, Jiyang Road was renamed Template:Stl.
• On June 9, 2013, the Aerospace Museum was renamed Template:Stl.

Headways

colspan="5" style="text-align: center" bgcolor=#Template:Rcr | Shanghai Metro Line 8 headway
Time		Template:Stl - Template:Stl	Template:Stl - Template:Stl	Template:Stl - Template:Stl
Monday - Friday (Working Days)
AM peak	7:15–9:20	About 3 mins and 30 sec	About 2 min and 15 sec
Off-peak	9:20–17:00	About 8 min	About 4 min	About 8 min
PM peak	17:00–19:20	About 5 min and 30 sec	About 2 min and 45 sec
Other hours	Before 7:30 After 20:00	About 10 - 12 min	About 5 - 6 min	About 10 - 12 min
Saturday and Sunday (Weekends)
Peak	8:00–19:00	3 min and 40 sec - 7 min and 20 sec	About 3 min and 40 sec	3 min and 40 sec - 7 min and 20 sec
Other hours	Before 8:00 After 19:00	About 10 - 12 min	About 5 - 6 min	About 10 - 12 min

Technology

Signalling

From June 19 to July 1, 2009, during the second phase of line 8 signal commissioning (upgrade from fully manual driving to CBTC semi-automatic driving), the first phase of operation efficiency was unstable, and trains stopped frequently. As a result, the driving time was much longer than normal, resulting in passenger congestion and seven consecutive large-scale failures. After investigation by the Shanghai Metro, it was found that the main reason for the stoppage of the train on Line 8 was that the communication transmission time set by the CBTC on-board software was too short, which caused the train to transmit too much data to the central computer, and the train was unable to accurately receive wireless signals. On July 2, 2009, after all the on-board software of the train was updated to resolve this issue.

Rolling Stock

The designed speed of the train is 80 km/h, the length is 19.49 meters (Tc)/19.44 meters (Mp, M) (compare to longer, more common Class A carriages at 23 meters), and the width is 2.6 meters (Class A carriages are wider at 3.0 meters).

colspan="9" style="text-align: center" bgcolor="#Template:Rcr" | Shanghai Metro Line 8 rolling stock
Fleet numbers	Manufacturer	Time of manufac- turing	Class	No of car	AssemblyTemplate:Efn-lr	Rolling stock	Number	Notes
168	Alstom France (0801) SATCOTemplate:Efn-lr (0802-0828)	2006-2008	CTemplate:Efn-lr	6	Tc+Mp+M+M+Mp+Tc	08C01	0801-0828 (080011-081681)	6 cars (080011-080061) built by CAF. Original name: AC07.
126	CRRC Changchun Railway Vehicles Co., Ltd.	2009-2010	CTemplate:Efn-lr	7	Tc+Mp+M+M+M+Mp+Tc	08C02	0829-0846 (081691-082941)	Original name: AC15A.
140	CRRC Changchun Railway Vehicles Co., Ltd.	2010-2011	CTemplate:Efn-lr	7	Tc+Mp+M+M+M+Mp+Tc	08C03	0847-0866 (082951-083341)	Original name: AC15B.
168	CRRC Changchun Railway Vehicles Co., Ltd.	2018-2020	CTemplate:Efn-lr	7	Tc+Mp+M+M+M+Mp+Tc	08C04	08067-08090 (083351-085301)
Template:Notelist-lr

• 08C01 train
  08C01 train
• 08C02 train
  08C02 train