Line 21 (Guangzhou Metro)

Line 21 of the Guangzhou Metro (Chinese: 广州地铁21号线; pinyin: Guǎngzhōu Dìtiě Èrshíyīhàoxiàn) is a rapid transit rail line in Guangzhou.

Line 21
Line 21 train near Jinkeng
Overview
Other name(s)	M21 (plan name) Eastern New Town express line (Chinese: 东部新城快线)
Status	Operational
Owner	City of Guangzhou
Termini	Tianhe Park Zengcheng Square
Stations	20
Service
Type	Rapid transit
System	Guangzhou Metro
Services	2
Operator(s)	Guangzhou Metro Corporation
History
Opened	28 December 2018; 6 years ago (2018-12-28)
Technical
Line length	60.3 km (37.5 mi)[1]
Track gauge	1,435 mm (4 ft 8+1⁄2 in)
Electrification	Third rail, 1,500 V DC (Overhead lines with same voltage installed in depot)
Operating speed	120 km/h (75 mph)
Route map Legend Zengcheng Square Zhonggang Xiangling Stabling Yard Shantian Zhucun Fenggang Kengbei Zhongxin Zhenlong Depot/ Connection to Line 14 Zhenlong  14  Xinbaiguang IR  14  to Xinhe Zhenlongxi Jinkeng Guangshi Railway  THP1  to Xinfeng Lu Changping  THP1  Shuixi Stabling Yard  7  to Meidi Dadao Shuixi  THP1   7   THP1  to Xiangxue Subway Station Suyuan  6  Connection to Line 6/  6  to Xunfenggang to Xiangxue Science City Shenzhoulu Tianhe Smart City Daguannanlu Huangcun  4  Guangshen Railway  4  to Nansha Passenger Port Tangdong Guangfo circular IR  11  Outer Circle  13  to Xinsha Connection to Line 11 and Line 13 Tianhe Park  11   13   13  to Chaoyang  11  Inner Circle This diagram: view talk edit

Line 21
Simplified Chinese	广州地铁21号线
Traditional Chinese	廣州地鐵21號線
Transcriptions Standard Mandarin Hanyu Pinyin Guǎngzhōu Dìtiě Èrshíyīhàoxiàn Yue: Cantonese Jyutping gwong2 zau1 dei6 tit3 ji6 sap6 jat1 hou6 sin3

Line 21 is an express suburban metro line along with Line 14. Both lines were envisioned to connect and promote development in the northeast regions of Guangzhou. Line 21's unique role means that it has many design features that make it different from other Guangzhou metro lines. For example, several stations have passing loops to allow for express and local stopping patterns and trains reach a maximum service speed of 120 km/h (75 mph). These considerations allow for passengers to travel from outer Guangzhou to the city center in one hour.^[2] Line 21 runs from Tianhe Park in Tianhe to Zengcheng Square in Zengcheng.^[3] The line is about 60.3 km (37.5 mi) long.^[1] The line has 38.8 km (24.1 mi) of underground sections, 6.8 km (4.2 mi) of mountain base tunneling and 14.7 km (9.1 mi) on viaducts.^[4] The line has a total of 20 stations, of which 16 are underground and 4 are elevated.

The eastern section of Line 21 opened on December 28, 2018^[5] and the western section opened on December 20, 2019.^[6]

Since October 2, 2024, the section from Tianhe Park to Yuancun was removed from Line 21, and once renovation is complete, will transfer to Line 11. Cross Platform transfer will be provided at Tianhe Park station since December 28, 2024.^[7]

Line 21 drawn to scale.

Opening timeline

Segment	Commencement	Length	Station(s)	Name
Zhenlongxi — Zengcheng Square	28 December 2018	26.2 km (16.3 mi)[8]	9	Eastern section
Yuancun — Zhenlongxi	20 December 2019[6]	35.3 km (21.9 mi)[8]	12	Western section
Yuancun — Tianhe Park (closed)	2 October 2024[7]	−1.37 km (−0.9 mi)	-1	Converting to Line 11 section per initial design

Train service

There are 2 types of train services offered on the metro line 21:

• Tianhe Park — Zengcheng Square (Local services, stop at every stations on mainline)
• Tianhe Park — Zengcheng Square (Rapid express services, only stop at Tangdong, Huangcun, Tianhe Smart City, Shenzhoulu, Suyuan, Shuixi, Zhenlong, Fenggang, Zengcheng Square)

Stations

• L - local services
• R - rapid express services

R	L	Station №		Station name		Connections	Distance km		Location
				English	Chinese
●	●	2102		Tianhe Park	天河公园	11  1104  13	0	0	Tianhe
●	●	2103		Tangdong	棠东		3.41	3.41
●	●	2104		Huangcun	黄村	4  424 JSQ	2.13	5.54
｜	●	2105		Daguannanlu	大观南路		1.16	6.70
●	●	2106		Tianhe Smart City	天河智慧城		2.08	8.78
●	●	2107		Shenzhoulu	神舟路		3.27	12.05	Huangpu
｜	●	2108		Science City	科学城		1.99	14.04
●	●	2109		Suyuan	苏元	6  630	2.45	16.49
●	●	2110		Shuixi	水西	7  719  THP1	2.31	18.80
｜	●	2111		Changping	长平	THP1	3.00	21.80
｜	●	2112		Jinkeng	金坑		6.27	28.07
｜	●	2113		Zhenlongxi	镇龙西		5.94	34.01
●	●	2114		Zhenlong	镇龙	14  1422	2.17	36.18
｜	●	2115		Zhongxin	中新		2.12	38.30	Zengcheng
｜	●	2116		Kengbei	坑贝		3.59	41.89
●	●	2117		Fenggang	凤岗		2.54	44.43
｜	●	2118		Zhucun	朱村		3.24	47.67
｜	●	2119		Shantian	山田		4.46	52.13
｜	●	2120		Zhonggang	钟岗		4.95	57.08
●	●	2121		Zengcheng Square	增城广场	16	2.95	60.03