The Northern Airport Expressway, officially numbered S28, is an 11.29 km toll road extension that runs from
G45 Daqing–Guangzhou Expressway (formerly Beijing-
Chengde Expressway) to the
Beijing Capital International Airport in
Beijing,
China. It was opened in September 2006.[1] The opening of this road has helped to alleviate traffic on the
Airport Expressway, which had been the sole highway link to the airport. The Northern Airport Line allows drivers from
Zhongguancun and points north and west of the city to head north first on Jingcheng Expressway before going directly east to the airport, instead of having to go east on the
4th Ring Road to get on the Airport Expressway, where traffic is often clogged near the
Siyuan Bridge.