The Roca line is a
gauge
Gauge ( or ) may refer to:
Measurement
* Gauge (instrument), any of a variety of measuring instruments
* Gauge (firearms)
* Wire gauge, a measure of the size of a wire
** American wire gauge, a common measure of nonferrous wire diameter, es ...
commuter rail
Commuter rail, or suburban rail, is a passenger rail transport service that primarily operates within a metropolitan area, connecting commuters to a central city from adjacent suburbs or commuter towns. Generally commuter rail systems are co ...
service in the
Buenos Aires Province,
Argentina
Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, t ...
, part of
General Roca Railway
The General Roca Railway (FCGR) (native name: Ferrocarril General Roca) is a broad gauge railway in Argentina which runs from Constitución station in Buenos Aires to the south of the country through the provinces of Buenos Aires, La Pampa, ...
network. The service is currently operated by
State-owned company
A state-owned enterprise (SOE) is a government entity which is established or nationalised by the ''national government'' or ''provincial government'' by an executive order or an act of legislation in order to earn profit for the governmen ...
Trenes Argentinos, from the city-centre terminus of
Constitución south to
Ezeiza,
Alejandro Korn
Alejandro Korn (3 May 1860 – 9 October 1936) was an Argentine psychiatrist, philosopher, reformist and politician. For eighteen years, he was the director of the psychiatry hospital in Melchor Romero (a locality of La Plata in Buenos Aires) ...
,
La Plata
La Plata () is the capital city of Buenos Aires Province, Argentina. According to the , it has a population of 654,324 and its metropolitan area, the Greater La Plata, has 787,294 inhabitants. It is located 9 kilometers (6 miles) inland from ...
,
Cañuelas,
Chascomús
Chascomús is the principal city in Chascomús Partido in eastern Buenos Aires Province of Argentina, located south of the capital Buenos Aires. In 2001, the city had a population of 30,670.
History
The city was founded as a fort (the ''Fortí ...
, Gutiérrez and
Lobos
Lobos is the headquarters city of the Lobos Partido in Buenos Aires Province, Argentina. It was founded on 2 June 1802 by José Salgado.
Background
Located 100 km from Buenos Aires, Lobos is currently a fertile agricultural area known m ...
, and west to
Sarmiento Line
The Sarmiento line is a broad gauge commuter rail service in Buenos Aires Province, Argentina, run by the state-owned Trenes Argentinos since 11 September 2013.
History
This line had previously been run by the state-owned company Ferrocarri ...
's station
Haedo. The transfer stations between the branch lines are Avellaneda,
Temperley
Temperley is a district in Greater Buenos Aires, Argentina, located in the south of Lomas de Zamora Partido.
History
In 1854 the industrial and textile merchant George Temperley (born in 1823 in Newcastle upon Tyne, England) bought from the Ma ...
, Bosques and
Berazategui :''This article contains information about the town of Berazategui. See also Berazategui Partido for the wider neighbourhood.''
Berazategui is a city in Buenos Aires Province, Argentina, located to the south-east of Quilmes. It is the head town ...
.
The line consists of 198 kilometres of track (55 of which are
electrified
Electrification is the process of powering by electricity and, in many contexts, the introduction of such power by changing over from an earlier power source.
The broad meaning of the term, such as in the history of technology, economic histor ...
), 70 stations, 146
grade crossings
A level crossing is an intersection where a railway line crosses a road, Trail, path, or (in rare situations) airport runway, at the same level, as opposed to the railway line crossing over or under using an Overpass#Railway, overpass ...
, 907 daily services through its different branches, and carries half a million passengers daily, making it the longest and most used line of the Buenos Aires commuter rail network. Currently there are large electrification and infrastructure improvement works being undertaken on the line, with brand
new electric multiple units entering service on 8 June 2015.
History

This line had previously been run by the state-owned company
Ferrocarriles Argentinos
Ferrocarriles Argentinos (abbreviated as FA; ) was a state-owned company that managed the entire Argentine railway system for nearly 45 years. It was formed in 1948 when all the private railway companies were nationalised during Juan Perón's fir ...
since
nationalisation of the Argentine railways in 1948. Branches from
Constitución to
Ezeiza and
Glew
OpenGL (Open Graphics Library) is a cross-language, cross-platform application programming interface (API) for rendering 2D and 3D vector graphics. The API is typically used to interact with a graphics processing unit (GPU), to achieve hardwa ...
were
electrified
Electrification is the process of powering by electricity and, in many contexts, the introduction of such power by changing over from an earlier power source.
The broad meaning of the term, such as in the history of technology, economic histor ...
and the entire fleet of trains renewed, acquiring
multiple units
A multiple-unit train or simply multiple unit (MU) is a self-propelled train composed of one or more carriages joined together, which when coupled to another multiple unit can be controlled by a single driver, with multiple-unit train contr ...
by
Japanese companies
Nippon Sharyo
, formed in 1896, is a major rolling stock manufacturer based in Nagoya, Japan. In 1996, it abbreviated its name to "日本車両" Nippon Sharyō. Its shortest abbreviation is Nissha "日車". It was a listed company on Nikkei 225 until ...
,
Kinki Sharyo
is a Japanese manufacturer of railroad vehicles based in Osaka. It is an affiliate company of Kintetsu Corporation. In business since 1920 (as Tanaka Rolling Stock Works) and renamed The Kinki Sharyo Co., Ltd in 1945. They have produced light ...
,
Tokyu Car,
Kawasaki
Kawasaki ( ja, 川崎, Kawasaki, river peninsula, links=no) may refer to:
Places
*Kawasaki, Kanagawa, a Japanese city
**Kawasaki-ku, Kawasaki, a ward in Kawasaki, Kanagawa
**Kawasaki City Todoroki Arena
**Kawasaki Stadium, a multi-sport stadium
*K ...
and
Hitachi
() is a Japanese multinational corporation, multinational Conglomerate (company), conglomerate corporation headquartered in Chiyoda, Tokyo, Japan. It is the parent company of the Hitachi Group (''Hitachi Gurūpu'') and had formed part of the Ni ...
. The electrified rail system was opened to public in November, 1985. The design of these Japanese-built cars was based upon the
Odakyu 9000 series, built for the first time between 1972 and 1977.
Ferrocarriles Argentinos operated the trains until 1991 when residual company
FEMESA temporarily took over all the urban services prior to the privatisation of the network. After the Government of
Carlos Menem
Carlos Saúl Menem (2 July 1930 – 14 February 2021) was an Argentine lawyer and politician who served as the President of Argentina from 1989 to 1999. Ideologically, he identified as a Peronist and supported economically liberal policies. ...
privatised the urban railways services, the private company
Metropolitano
Metropolitano S.A. was a privately owned consortium formed in 1994 to take over concessions granted by the Argentine government as part of railway privatisation during the presidency of Carlos Menem for the operation of commuter rail services i ...
(TMR) took over Roca Line through concession.
Nevertheless, non-compliance with the terms and conditions (such as lack of investment and poor maintenance of the line, in spite of the large government subsidies received by Metropolitano) led the
Government of Argentina
The government of Argentina, within the framework of a federal system, is a presidential representative democratic republic. The President of Argentina is both head of state and head of government. Executive power is exercised by the Preside ...
to revoke the contract of concession in 2007. The
UGOFE consortium took over the service until 12 February 2014, when it was announced that the line would be granted to the local
Emepa Group.
After the concession was revoked, a temporary consortium named "
UGOFE", took over the Roca line.
Several projects were announced to modernize the line and improve its service, setting as a priority the electrification of the whole system. Other projects included a new maintenance yard in the town of Tolosa in
La Plata Partido
La Plata is a partido (department) in Buenos Aires Province, Argentina, some southeast of the city of Buenos Aires.
It has an area of , and a population of 774,369 (). Its capital is La Plata, which also serves as the capital of the province ...
, several new bridges and tunnels at road crossings and improved grade crossings, all new concrete sleepers and welded rail joints for the entire line, the remodeling of 50 stations and the purchase of 200 electric coaches of the latest technology. Presently electrification of Avellaneda-Quilmes and Temperley-Bosques sections are under way.
Recent developments

In April 2013 the
University train of La Plata service was opened, using
railbus
A railbus is a lightweight passenger railcar that shares many aspects of its construction with a bus, typically having a bus (original or modified) body and four wheels on a fixed base, instead of on bogies. Originally designed and developed ...
es built by the Argentine company
TecnoTren. In that same year, Argentine state-owned company
SOFSE announced that brand new
electric multiple unit trains had been acquired for the line's metropolitan services. The contract included 300 coaches for the Roca Line, among the new rolling stock purchased for other lines.
The
State-owned company
A state-owned enterprise (SOE) is a government entity which is established or nationalised by the ''national government'' or ''provincial government'' by an executive order or an act of legislation in order to earn profit for the governmen ...
Operadora Ferroviaria took over Roca Line (operated by
Argentren
Argentren S.A. was an Argentine private company that operated the Belgrano Sur and Roca railway services in Buenos Aires Province for about one year until the Government of Argentina rescinded the agreement with the company in March 2015. S ...
) after the
Government of Argentina
The government of Argentina, within the framework of a federal system, is a presidential representative democratic republic. The President of Argentina is both head of state and head of government. Executive power is exercised by the Preside ...
rescinded the contracts signed with the company on 2 March 2015. The contract terms specified that the concession could be cancelled with no right to claim compensation.
The agreements had been signed in February 2014, committing Argentren and Corredores Ferroviarios to operate the lines.
In March 2015, a total of 300 brand-new
electric multiple units acquired to
Chinese company
CSR arrived in Argentina. The National Government announced that the new
CSR EMUs would be put into service in June 2015, what finally happened on 8th of that month.
The line also reestablished services to
Claypole (Constitución–Bosques–Gutiérrez branch) serving with the brand-new EMUs bought from China. The service had previously been suspended in February 2014.
There are currently ongoing electrification works on the line, most notably on the Buenos Aires - La Plata service which has received a US$500 million investment from the state, 300 of which come from an
Inter-American Development Bank
The Inter-American Development Bank (IDB or IADB) is an international financial institution headquartered in Washington, D.C., United States of America, and serving as the largest source of development financing for Latin America and the Cari ...
loan.
Other works on the line include the refurbishment of stations and the raising of platforms to match the height of the new CSR rolling stock, while the construction of new underpasses and other infrastructure improvements is due to reduce travel times by around 50%.
On 5 December 2015, the electrified service between Constitución and Quilmes was presented, although the service was only opened next year, after the presidential elections, on 13 February. On 13 June 2016, the Quilmes-Berazategui section began service.
In March 2017, the first section of the electrified service was opened, joining Constitución with
City Bell, covering almost 45 km-length. The entire project includes to extend the electrified service to La Plata downtown. The extension to La Plata was opened on 18 October 2017, about two years late due to numerous delays in construction.
In January 2018, Argentinian Minister of Transport
Guillermo Dietrich
Guillermo Dietrich (born March 5, 1969) is an Argentine economist and politician. He served as the Minister of Transport of Argentina in the Mauricio Macri cabinet from 2015–2019.
Life and education
Guillermo Dietrich was born in Buenos Aire ...
approved an order of 200 EMU cars from
CRRC Qingdao Sifang
CRRC Qingdao Sifang Co., Ltd. () is a Chinese rolling stock manufacturer based in Qingdao, Shandong province. Founded in 1900 during the German occupation, Qingdao Sifang is one of the oldest rolling stock manufacturers in China.
History
Qi ...
for service on the Roca Line, where they were to replace Toshiba EMUs that were built in the 1980s.
Historic operators
Companies that have operated the Roca Line since it was established after the
1948 nationalisation are:
Services
Gallery
File:BNA FO011851.jpg, La Plata railway station under construction (1902)
File:EMD GT22CW locomotive (A903) - 01.jpg, Metropolitano locomotive at La Plata
File:Estación Banfield - Ferrocarril Roca - Buenos Aires.jpg, Banfield station
File:Extremo oriental de la estación Claypole.jpg, Claypole station, platforms
File:CityBellStation_RocaLine_August2017.jpg, City Bell station, post-renovation
File:TolosaStation LineaRoca August2017.jpg, Tolosa station, under renovation
See also
*
University train of La Plata
*
Toshiba EMU (Roca Line)
*
Roca Railway
*
Trenes Argentinos
Notes
References
External links
*
Tren Roca(unofficial)
{{DEFAULTSORT:Linea Roca (Buenos Aires)
R
R
r
R
25 kV AC railway electrification