Yangzhen, Shunyi will be connected to the subway in 2023. The network platform shows that the subway 15 line will extend eastward to Yangzhen, Shunyi, and construction will start on 20 17, and it will be open to traffic within five years. The newly planned east extension line of 15 line is four times longer than the original plan, and continues to extend eastward from the originally planned Nancai group to the Xincheng Yangzhen group. According to the spirit of Beijing Urban Rail Transit Construction Plan (20 14-2020), Shunyi District originally planned to extend the M 15 line eastward to shunyi new town Nancai Group. The project is estimated to be 2.3 kilometers long with a total investment of about 3.8 billion yuan. Relevant departments of Shunyi District actively promoted the establishment of the project, and started construction on 20 17, which was completed and opened to traffic during the 13th Five-Year Plan period.