Line 21 of the

Guangzhou Metro The Guangzhou Metro () ( and ) is the rapid transit system of the city of Guangzhou in Guangdong Province of China. It is operated by the state-owned Guangzhou Metro Corporation and was the fourth metro system to be built in mainland China, af ...

() is a

rapid transit Rapid transit or mass rapid transit (MRT), also known as heavy rail or metro, is a type of high-capacity public transport generally found in urban areas. A rapid transit system that primarily or traditionally runs below the surface may be c ...

rail line in

Guangzhou Guangzhou (, ; ; or ; ), also known as Canton () and alternatively romanized as Kwongchow or Kwangchow, is the capital and largest city of Guangdong province in southern China. Located on the Pearl River about north-northwest of Hong Kon ...

. 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 loop A passing loop (UK usage) or passing siding (North America) (also called a crossing loop, crossing place, refuge loop or, colloquially, a hole) is a place on a single line railway or tramway, often located at or near a station, where trains or ...

s to allow for express and local stopping patterns and trains reach a maximum service speed of . These considerations allow for passengers to travel from outer Guangzhou to the city center in one hour. Line 21 runs from Yuancun in Tianhe to Zengcheng Square in

Zengcheng Zengcheng District ( alternately romanized as Tsengshing) is one of 11 urban districts of the prefecture-level city of Guangzhou, the capital of Guangdong Province, China. History was established under the Qin following their conquest of ...

. The line is about long. The line has of underground sections, of mountain base tunneling and on viaducts. The line has a total of 21 stations, of which 18 are underground and 3 are elevated. The eastern section of Line 21 opened on 28 December 2018 and the western section opened on 20 December 2019. GZMTRLine21InScale

Opening timeline

Train service

There are 2 types of train services offered on the metro line 21: * — (Local services, stop at every stations on mainline) * — (Rapid express services, only stop at Yuancun, Tianhe Park, Tangdong, Huangcun, Tianhe Smart City, Shenzhoulu, Suyuan, Zhenlong, Fenggang, Zengcheng Square)

Opening timeline

Train service

Stations

Footnotes

References