Daxing Airport Express^[8] of the Beijing Subway (Chinese: 北京地铁大兴机场线; pinyin: Běijīng Dìtiě Dàxīng Jīchǎng Xiàn) is an airport rail link from Caoqiao (located at the Southern 3rd Ring Road) to the Beijing Daxing International Airport. It is colored blue on subway maps.^[9] The line opened on September 26, 2019.^[6]

Quick Facts Overview, Other name(s) ...

Daxing Airport Express
A Daxing Airport Express train passing Beiwangchang Village, Panggezhuang Town
Overview
Other name(s)	M35[1] (planned name)
Status	Operational
Locale	Fengtai, Daxing districts (Beijing) & Guangyang district (Langfang, Hebei Province)
Termini	Caoqiao Daxing Airport
Stations	3
Service
Type	Rapid transit, Airport rail link
System	Beijing Subway
Operator(s)	Beijing Metro Operation Administration (BJMOA) Corp., Ltd.[2]
Depot(s)	Cigezhuang, New Airport North
Rolling stock	8-car Type D[3][4][5]
History
Opened	25 September 2019; 4 years ago (2019-09-25)[6]
Technical
Line length	41.36 km (25.70 mi)[7] (in operation)
Character	Underground and elevated
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification	25 kV 50 Hz AC from overhead catenary
Operating speed	160 km/h (99 mph) (maximum speed)
Route map Legend Line 14 Zhangguozhuang Line 14 and Line 16 Line 16 Wanpingcheng – Bei'anhe Lize Shangwuqu (to be opened 2025) Lianhua river Line 14 Shangezhuang Liangshui river Jinghu railway and Jinghu HSR line 19 Mudanyuan Ma'cao river Caoqiao Line 19 Line 10 line 10 inner – outer Line 19 Xingong Fengshuang railway Daxing line (through operation to Line 4) crossing Feng river Daxing Xincheng Cigezhuang depot Xinfeng river Dalong river Jinghu railway Jinghu HSR Jingxiong ICR Xiaolong river New Airport North yard Planned Line 20 reserved for future subway lines Intercity railway connector Tiantang river Daxing Airport PKX North Terminal planned extension below Daxing Airport South PKX South Terminal v t e

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It is one of two lines connecting the urban area of Beijing to the Beijing Daxing International Airport. The other line is the Beijing–Xiong'an intercity railway, a high-speed rail operated by China Railway.

The line is the second Beijing Subway line to be fully automated and driverless, after the Yanfang line.

Ordinary Class one-way fare is ¥10, ¥25 or ¥35 (see below) and Business Class one-way fare is ¥50.^[14]

The train sets of Daxing Airport Express are built by CRRC Qingdao Sifang.

8 Car Train

• Car 7 is a business class car.
• Car 3 has a wheelchair space.
• Car 8 is a baggage car.

4 Car Train

• Car 4 is a business class car.
• Car 3 has a wheelchair space.

The Daxing Airport Express was originally planned to start from Mudanyuan, and be routed in parallel with Line 19 from Mudanyuan to Caoqiao.^[16] However, the plan would cost more than 40 billion yuan, which was considered too expensive for a dedicated line that would only serve passengers going to and from the airport.^[17] The parallel section with Line 19 was abandoned and the route was shortened to the stretch from Caoqiao to Daxing Airport. The investment required for the line was reduced by 20 billion yuan.^[17]

In 2014, it was reported that the government was going to invest 19.7 billion yuan in the Daxing Airport Express^[18][19] and a plan with 4 stations: Caoqiao, Daxing Xincheng, and two stations at the Daxing Airport.

In early 2016, it was announced that the Daxing Airport Express was slated for completion by 2019. Phase I of the line includes only 3 stations: Caoqiao, Daxing Xincheng and Daxing Airport. The line will operate at a top speed of 160 km/h (99 mph) using Type D^[3][4][5] rolling stock, which is fully automated.^[20] Construction started at the end of 2016.^[21]

Test runs on the line began in June 2019,^[22] and the line was opened on September 26, 2019^[6] (Phase 1).