How wide are the right of ways for a train?

A Right of Way is a grant to cross the property of another for access to your land. The dimensions of a Right of Way are generally set forth in the instrument that created the ROW. You need to check...

Right of way is the singular form. Rights of way is the plural form.

No, it is absolutely not. That is why we all have to hope Alex learned his lesson in the past and will not use steroids or HGH for the rest of his career.

You say "right of way" if you mean who can cross an intersection first on the road.

the person that gets there first has the right of way