BEIJING, April 2 (Xinhua) -- The construction of the Beijing Daxing International Airport expressway will be completed this year, local transport authorities said Tuesday.

According to a construction plan published by Beijing Municipal Commission of Transport, the north-south new airport expressway, and the middle part of an east-west expressway to the north of the airport will be open to traffic in June.

The new airport, in southern Beijing, will be put into operation before Sept. 30, the country's top civil aviation official said last month.

The city opened four new expressways to traffic in 2018, increasing the length of its expressway network by 102 km to 1,115 km.

Beijing has 31 major transport infrastructure programs in 2019. The expressways under construction this year boast a total length of 163 km.