Overpasses are indispensable in the modern transportation system, shortening distances, expanding space, and becoming a landscape of the city. Qianchun Interchange in Guiyang City, Guizhou Province, In

Overpasses are indispensable in the modern transportation system, shortening distances, expanding space, and becoming a landscape of the city.

The Qianchun Interchange in Guiyang City, Guizhou Province, completed in 2016, is one of the most complex overpasses in China, with 5 floors of three-dimensional crossings, 11 ramps, 8 entrances and exits, a total length of 5270 meters, and a maximum vertical drop of 55 meters, which is jokingly called "the roller coaster with the largest drop in the southwest region".

From the air, the overpass crisscrosses each other like a labyrinth, like a pulsating note in the night, glittering and dazzling.

Located in a canyon, the construction of this overpass is not simple, the local terrain is steep, the space is small, and it also crosses existing roads, railways, and rivers, and is regarded as a super project in the bridge world.