Why did Fatou build an overpass?

According to relevant information, the Feng Shuang Railway at the crossing of Fatou is a busy freight trunk line in Beijing. More than 90 pairs of trains pass by every day, and the interval between trains is short, which increases the pressure on the chemical road that is not wide enough, and seriously affects the travel life of nearby residents. The establishment of Fatou overpass ended the history of "cars waiting for trains" for more than 30 years, and bid farewell to the traffic jam when the train arrived at the station. For specific information, please pay attention to official website for first-hand authoritative information.