"on the train" or "in the train"?

Which of these is correct: "I am on the train" or "I am in the train"?

Solution 1:

Both, but they are used differently. Being on the train is the most common use.

When you travel by train, you usually say that you are on the train.

If you want to describe your position, you could say that you are in the train, for example:

The train has derailed, I have a broken leg. You can find me in the train.

Solution 2:

Being on the train has the sense of being aboard or being a passenger on a conveyance.

Being in the train has the sense of being a component member of the train. Keep in mind that the word train refers to more than just railroads, and that a railroad train is something that comprises a group of connected cars and locomotive engines. It is proper to say that the car you are riding in is in the train. You would be in the train if you were part of a walking tour group or pilgrimage -- or even caught up in a conga line.