Metro Line 4's patronage exceeds 530 million after 2 years'operation

By September 28, 2011, metro line 4 operated by BJMTR was opened for 2 years. Statistics shows that line 4's patronage exceeds 530 million with the highest daily patronage of 1.14 million. During the past 2 years, line 4 provided a total of 386829 train trips, the train operation mileage is over 80 million car km, all the operation parameters are good.