What is the structure of the toilet on the train

Feel the taste of nature: (.)

After all, only one person in the toilet is uncomfortable In-line type is the whole car does not dare to open the window, especially in summer.

The train is a long-distance means of transportation that everyone often sits, and when everyone takes the train, there is a dining car when they want to eat, and there is a toilet when they want to be convenient, and the design is becoming more and more humane. But when everyone goes to the toilet, there must be a thought in the toilet of the train, that is, will the feces falling from the hollow of the urinal pile pile up on the tracks? Will this design affect the rails? >>>More

No, it's on the opposite side of the boarding door. There is one for each carriage.

The train has a toilet, and there are sewage suction staff and sewage suction vehicles at the station for treatment.