It would depend on the requirements of the proprietor of the train.
A graffiti canvas.
A Train
In a chair in one of the carriages.
Approximately 1000 . Depends on the size of the train. In the UK we have local trains of two carriages that would hold about 200 persons max.
A train is a line of coupled wagons or carriages drawn by a locomotive.
probably 10 carriages
Night Train - novel - has 149 pages.
There were 28 men who started in the train at night.
Night Train to Lisbon has 438 pages.
Train cars are divided up into compartments.
engine, carriages, boxcars, trucks, guards van (caboose)
you press f9 and click on the coupler twice