BEIJING, Sept. 27 (Xinhua) -- China is expected to see an average of 1.58 million daily inbound and outbound passenger trips during the upcoming Mid-Autumn Festival and National Day holiday, a roughly 3-fold increase year on year, according to the National Immigration Administration (NIA) forecast on Wednesday.

Passenger flows at major airports will witness a steady increase. Inbound and outbound trips at the Beijing Capital International Airport, the Shanghai Pudong International Airport and the Guangzhou Baiyun International Airport are expected to see a daily average of 27,000, 70,000 and 38,000, respectively.

Concerning exit-entry passengers traveling between Guangdong Province and Hong Kong and Macao special administrative regions, the ports of Gongbei, Luohu and Futian are expected to handle a daily average of 320,000, 190,000 and 180,000 trips, respectively, according to the NIA.

The administration has asked border inspection agencies across the country to release information about passenger flows in a timely manner for travelers' reference and open sufficient inspection channels to ensure safe, smooth and orderly operation at points of entry.

The Mid-Autumn Festival and National Day holiday period, which will last from Sept. 29 to Oct. 6 this year, is a peak travel and tourism season in China.