This article is more than 1 year old

This article is more than 1 year old

This article is more than 1 year old

China has opened a vast, multibillion-dollar airport in the country’s capital, in the run-up to a major political anniversary.

Less than five years after construction began, the 450bn yuan (£50bn) Daxing international airport was officially opened on Wednesday in a ceremony attended by the Chinese leader, Xi Jinping.

China is preparing to celebrate its National Day on 1 October, marking 70 years since the founding of the People’s Republic of China, against the backdrop of unrest in Hong Kong and a flagging economy.

Facebook Twitter Pinterest People attending the launch ceremony for the new Beijing Daxing international airport in Beijing. Photograph: STR/AFP/Getty Images

The new mega-airport, the second in Beijing, was designed by the late architect Zaha Hadid in the shape of a starfish with five connected concourses. It is said to be the world’s largest single-building airport terminal. At 700,000 sq metres, with four runways, it is expected to be able to handle 72 million passengers a year by 2025. By 2040, the airport is expected to expand to eight runways and accommodate 100 million passengers a year.

Officials have been showing off the sleek new airport for the past year, hosting tours of the space, which is to include customer-service robots to deliver flight information and facial recognition-enabled check-in.

Critics have questioned the need for a second airport in the capital, especially one that is almost twice the distance from the city centre as the existing airport.

Facebook Twitter Pinterest Interior view of Daxing airport in Beijing. Photograph: Zhang Chenlin/Xinhua/Barcroft Media

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Officials say Daxing will alleviate traffic pressure on the city’s existing international travel hub, Beijing Capital in the north-east, which had more than 100 million travellers last year, second in the world only to Hartsfield-Jackson airport in Atlanta, Georgia, in terms of passenger traffic.

China is expected to surpass the US to become the world’s largest market for airport travel by 2022. But the aviation sector has a poor reputation for flight disruptions, the result of frequents delays caused by overcapacity and delays caused by the military, which controls most of the airspace. Officials hope the new airport will lessen those delays.

Domestic and foreign airlines, including China Southern Airlines, China Eastern Airlines, Air China as well as British Airways and Finnair, have said they will move all or part of their operations to the new airport.