The 2nd Airport Expressway (), officially numbered S51, is a toll expressway that connects eastern

Beijing Beijing, Chinese postal romanization, previously romanized as Peking, is the capital city of China. With more than 22 million residents, it is the world's List of national capitals by population, most populous national capital city as well as ...

with Terminal 3 of

Beijing Capital International Airport Beijing Capital International Airport is the busier of the two international airports serving Beijing, the capital city of China (the other one being Beijing Daxing International Airport). The airport is located northeast of downtown Beijing ...

. It opened on February 29, 2008, just prior to the

2008 Beijing Olympics The 2008 Summer Olympics (), officially the Games of the XXIX Olympiad () and officially branded as Beijing 2008 (), were an international multisport event held from 8 to 24 August 2008, in Beijing, China. A total of 10,942 athletes fro ...

. It runs for 11.5 km from Yaojiayuan Road in Chaoyang District to Terminal 3. It was built to serve the new Terminal 3, and to reduce pressure of Airport Expressway, which has been heavily congested.

References

Expressways in Beijing Expressways in China {{PRChina-road-stub