Will the train stop in advance?

First of all, what does the author mean by abnormal operation? Is the train out of service or late? Or an accident?

If the train is late, the waiting room of the railway station will inform in advance. If you happen to be out of the train station, all kinds of train software will also prompt you now. When you open the train number, you will be prompted to watch the train at any time. If we stop work because of various natural and man-made disasters. You buy tickets at 12306. The official will send you a text message in advance to inform you that the train is out of service, and you can change it or get a full refund. There will also be tips at the station!