Since 2000, due to the demolition of the old railway, the coal mines have been closed one after another, and there are only three shops from Mentougou District to Muchengjian, twice a day (once on weekends). With the opening of bus No.929, fewer and fewer people take the train, and the train is shortened from car to car. In the end, there was only one carriage left, making it the only small train in Beijing with only one carriage. There is only one conductor and one flight attendant on the bus. Nevertheless, it still runs several times a day, tirelessly transporting people who are willing to take it until it stops.
The operation of Jingmen small ticket car is mainly to solve the traffic in mountainous areas. The train to Muchengjian is 2 yuan 5 jiao. It snows in winter, and the 929 bus stops, so there are too many passengers to stand. In other seasons, the 929 bus diverted nine-tenths of the passengers on the original train line. At present, the Jingmen small ticket car has been shut down.