The platform screen doors of BJL16 north section (10 stations from BeiAnHe station to XiYuan station) were tested and checked before BJL16 opened for trail operation in 2016. While BJL16 NongDaNanLu station not opened until the end of 2017, the train still doesn’t stop at this station and the platform screen doors of this station are locked. In order to ensure good operation of these platform screen doors, BJMTR ran the second round of 5000-time open and close test on the platform screen doors of BJL16 NongDaNanLu station every night at the 4 non traffic hours from November, 29, 2017. The test will be completed in early December.