High Quality Content by WIKIPEDIA articles! Even with the switchback, the gradient near Qinglongqiao railway station is still at 3.3%. In addition, travelling through the switchback is slow. A bypass route, Fengsha Railway, was built in the 1950s between Fengtai and Shacheng along the Yongding river. This route was dropped by Zhan due to high construction cost. Before the 1990's, the Fengsha railway was mainly used to transport cargos, and the original Jingzhang railway was focused on the passenger transportation.Now,most of the trains coming from Baotou have changed to use Fengsha railway instead. The Qinglongqiao railway station, where the switchback is located, is the station serving the Great Wall near Badaling.

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