What does 'passing train' mean in the context of automobiles?

[OJonathan]

A 'passing train' generally refers to a train that passes through and stops at the station where you are located, which is an intermediate stop rather than the final destination. It means the train will pass through this station but will not stay for an extended period. Below is some relevant information: Stations: A train passes through many stations; the starting station is called the origin station, and the final station is called the destination station. At the origin station, this train is referred to as an originating train, while at intermediate stations, it is called a passing train. A passing train still enters the station. Usually, passengers board near the roadside close to the station, sometimes right at the station entrance. Important notes: Passengers can board at intermediate stops on the date and with the train number specified on their ticket, but the fare for the unused portion of the journey will not be refunded. They may also disembark at intermediate stops (except for suburban tickets) and resume their journey within the validity period of the ticket. However, if they disembark midway, their sleeper ticket will become invalid immediately.