Siyuan Bridge

Siyuan Bridge is a road viaduct in northeastern Beijing that connects three major transportation corridors: the Airport Expressway, National Highway 101, and the city's Fourth Ring Road. The structure moves traffic between these three arteries through a network of ramps and interchanges.

This structure was built to address Beijing's rapid urbanization and the growing traffic needs in the region. It forms part of the wider infrastructure development that helped the city handle modern transportation demands.

The name Siyuan refers to the fourth cardinal direction in traditional Chinese thought, reflected in how locals speak about this major crossing point in daily conversation.

The bridge has multiple closely spaced exits and lane restrictions, so drivers should plan their route ahead of time. Using a navigation app can help unfamiliar travelers identify the correct exit and avoid unnecessary detours through the interchange system.

What sets this bridge apart is its ability to unite three major traffic arteries across multiple levels, allowing some vehicles to reach their destinations without having to completely change levels. This design was needed to handle the complex traffic flow in this growing urban area.