Around twenty airlines will move into the third terminal (T3) of the Beijing Capital International Airport (BCIA) on Mar. 26, shifting 60 percent of the airport's handling capacity to the new building.

Insiders said it would be a real test of the world's largest airport terminal.

On Mar. 20, the airport said at a press conference that T3 has been operating smoothly since the first batch of six carriers moved in on Feb. 29.

Since then, it has handled about 40 flights and 5,000 passengers daily.

"There were some trivial problems, but they didn't affect passengers or the terminal's overall operation," deputy general manager of the Capital Airport Holding Co Dong Zhiyi said.

"Passenger feedback indicated the signage in T3 needed improvement," he said.

"We have made efforts to improve this and also carried out emergency drills to prepare for malfunctions of the automatic people mover system and the luggage system," he said.

But the biggest headache for the airport is the daily average of 300 passengers who go to the wrong terminal building.

Huang Gang, who is in charge of T3's management, said a survey conducted between Feb. 29 and Mar. 16 showed 7,112 passengers took the free shuttle buses that carry passengers among the three terminals.

It also found 1,089 passengers ended up in the wrong terminal and got on the shuttle buses on T3's opening day. The number has since declined steadily, reaching 323 by March 16.

Analysis of the reasons people end up in the wrong terminals found 26 percent of passengers weren't given sufficient information by carriers, 19 percent were given incorrect information by airlines and 17 percent didn't know airlines were moving to T3.

It also found 16 percent of these passengers were dropped off at the wrong place by a taxi and 13 percent disembarked from the airport bus at the wrong stop.

"We have printed and distributed 1.9 million brochures for taxi drivers, travel agencies and other places since December, but it hasn't been particularly effective," Huang said.

And there are concerns that things could get worse after Air China and 19 other carriers move to T3 on Mar. 26.

The airport will continue to arrange shuttle buses to assist passengers from 6am to 11pm outside Gate 5 of T3 and Gate 11 of T2, he said.

Because stricter security check measures were adopted over the weekend, he also reminded domestic flight passengers to arrive at the airport at least two hours before the take-off.

Beijing-Shanghai Hongqiao Express Flights

Contrary to earlier announcements, not all express flights between Beijing and Shanghai Hongqiao will move to T3.

Huang said the Beijing-Shanghai express flights operated by China Eastern, China Southern and Hainan Airlines will remain in T2, while those operated by Air China and Shanghai Airlines will move into T3.