Editing Rail transport operations (section)

===Human geography===
Rail transport systems affect the human geography. Large cities (such as [[Nairobi]]) may be founded by a railroad passing through. Historically, when a station has been built outside the town or city it is intended to serve, that town has expanded to include the station, or buildings (especially [[Inn]]s) sprung up near the station. The existence of a station may increase the number of [[Commuting|commuters]] who live in a town or village and so cause it to become a [[dormitory town]]. The [[first transcontinental railroad|transcontinental railroad]] was a large factor in American [[colonization]] of the [[American frontier|Western frontier]]. [[Qinghai–Tibet Railway|China's railroad expansion]] into [[Tibet]] may have similar consequences.