A union station (also known as a union terminal and a joint station in Europe) is a railway station where tracks and facilities are shared by two or more separate railway companies, allowing passengers to connect conveniently between them. The term 'union station' is used in North America and 'joint station' is used in Europe.
In most cases, a US union station was used by all passenger trains serving the city, but this was not necessarily so. For example, in Chicago, the Illinois Central and Chicago & North Western depots coexisted with Union Station. Today, while all Amtrak intercity passenger trains use Union Station, Chicago's commuter rail service Metra uses Union Station as well as three additional terminals in the city.
In North America, a union station is usually owned by a separate corporation whose shares are owned by the different railways which use it, so that the costs and benefits of its operations are shared proportionately among them. This contrasts with the system of trackage rights or running rights, where one railway company owns a line or facility, but allows another company to share it under a contractual agreement. However, the company that owns the union station and associated trackage does assign trackage rights to the railroads that use it. Many of the jointly-owned stations were built by terminal railroads. Examples include the Ogden Union Railway & Depot Company, jointly owned by Southern Pacific and Union Pacific to manage the Ogden Union Station in Ogden, Utah, and the Denver Terminal Railway Company, representing the Denver & Rio Grande Western, Chicago Burlington & Quincy, Atchison Topeka & Santa Fe, Colorado & Southern and Chicago Rock Island & Pacific and the Union Pacific railways, which managed the station in Denver, Colorado.
In most countries in Europe, railways have in much of the 20th century been owned and operated by state enterprises. Where only one railway company exists, there is no need for a "joint station". However, before nationalisation many companies existed and sometimes they had "joint stations". In some cases this persists today. "Joint stations" are often found near borders where two state-owned railway companies meet.
In the United Kingdom, before the railways were nationalised in 1948, stations shared by multiple operators were referred to as "joint stations". This term has occasionally been revived since the railways were returned to the private sector in the 1990s, but is not as familiar or as well-understood as "union station" is in the United States. The term "junction", which is now used to refer to these stations, is the more well known and extant term.
Germany, Austria and Switzerland
In German-speaking countries, the equivalent term Gemeinschaftsbahnhof is used in administrative language only. The general public often call them "Hauptbahnhof", but this is a misnomer, as stations administratively classified as "Hauptbahnhof" need not be served by multiple operators.
Bohemia and Moravia
In Bohemia (part of the territory of the Czech Republic today) some stations were called the "společné nádraží" (the common station) before the state took over the private railway companies. "Praha-Smíchov společné nádraží" is to this day the functional name of the second station built in 1872 by the same investor near the first station Smíchov of the Pražská západní dráha (Prague Western Railroad). The new station served as the main marshalling yard of Prague. Three routes flowed into it: Pražská spojovací dráha (the Prague Connecting Railroad, 1872), the extension of Buštěhradská dráha from Hostivice (1872) and Pražsko-duchcovská dráha (the Railroad Prague – Duchcov, 1873). Nowadays the "společné nádraží" forms an unremarkable separate platform of the station Praha-Smíchov, known in timetables as "Praha-Smíchov severní nástupiště" (the northern platform).
"Společné nádraží" was built 1845–1848 at Brno.
Nowadays[when?] the largest stations are called "hlavní nádraží" (main station).
- Strack, Don. "Ogden Rails, Ogden Union Station". Retrieved 2011-01-19.