Driving on Yanchong Expy 4K HDR - Spectacular China's Transportation Infrastructure скачать в хорошем качестве

Driving on Yanchong Expy 4K HDR - Spectacular China's Transportation Infrastructure

Yanqing-Chongli Expressway, referred to as Yanchong Expy. It is one of the northwestern high-speed corridors of Beijing-Tianjin-Hebei integration, and is also the contact corridor for the 2022 Winter Olympic Games. Yanchong Expy is located in the lofty mountains, deep ravines and dangerous gullies, crossing two major fracture zones and wet limiting loess areas, with a maximum altitude difference of nearly 1,000 meters, and the bridge-to-tunnel ratio of the whole line reaches 56%. In addition, the winter is severe and the annual window for effective construction is very short, making the project construction and management very difficult. On August 13, 2019, the right line of Jinjiazhuang Spiral Tunnel of Yanchong Expressway was successfully opened, and was certified and awarded the “World's Longest Highway Spiral Tunnel” by Guinness World Records. On this trip, we start from Chongli District of Zhangjiakou City and drive along this magnificent expressway to Yanqing District of Beijing City.