Tren Urbano

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Tren Urbano
San Juan Tren Urbano logo.png
Tren Urbano Metro.jpg
Train arriving in Rio Piedras station
OwnerPuerto Rico Department of Transportation and Public Works
LocaleSan Juan
Transit typeRapid transit
Number of lines1
Number of stations16
Daily ridership18,600 (avg. weekday)[1]
Annual ridership4,834,500 (2017)[2]
HeadquartersGuaynabo, Puerto Rico
Began operationDecember 17, 2004 (2004-12-17)
Operator(s)Alternate Concepts, Inc (ACI)[3]
Number of vehicles74
Train length4 Vehicles (two permanently coupled pairs) during peak hours; 2 Vehicles (one permanently coupled pair) during off-peak hours, weekends and holidays.
Headway12 minutes (8 minutes during peak hours)
System length10.7 miles (17.2 km)
Track gauge4 ft 8½ in (1,435 mm) (standard gauge)
ElectrificationThird rail, 750 V DC
Average speed20.6 mph (33.2 km/h) (including stops)
Top speed62 mph (100 km/h)
System map

extensions to
OSJ and Luis Muñoz Marín International AirportSJU
Sagrado Corazón
Hato Rey
Río Piedras
Caguas extension
Centro Médico
San Francisco
Las Lomas
Hogar del Nifio
Operations and Maintenance Building
Martínez Nadal

The Tren Urbano (English: Urban Train) is a 10.7-mile (17.2 km) fully automated rapid transit system that serves the municipalities of San Juan, Guaynabo and Bayamón in Puerto Rico. The Tren Urbano consists of 16 stations operating on 10.7 miles (17.2 km) of track along a single line.

The Tren Urbano complements other forms of public transportation services in the San Juan metropolitan area such as the Metropolitan Bus Authority, Cataño Ferry, taxis and shuttles. The entire mass transportation system is operated by the Integrated Transit Authority (ATI), The Tren Urbano system is operated by Alternate Concepts, Inc. (ACI).[3] Tren Urbano is also the Caribbean's first rapid transit system.[4]


Tramway in front of City Hall in Plaza de Armas, Old San Juan (circa 1902)

In the late 19th century while the island was under Spanish rule, regional rail systems were begun in Puerto Rico. The railroad continued to be in use under US rule for most of the first half of the 20th century and played a key role in the transportation of people and goods throughout the island. The railroad systems of the period also played a vital role in the sugarcane industry.

From 1901 to 1946 San Juan had a street tramway network known as “Trolley” de San Juan operated by the Porto Rico Railway, Light and Power Company[5] with more than 20 miles (32 km) of tracks and ran between San Juan and Santurce. During its heyday, it was the most modern electric streetcar system in Puerto Rico, rivaling New York and Toronto and transported nearly 10 million passengers a year. Today there are plans to bring back the tram to the heart of San Juan to complement the Tren Urbano.[citation needed]

During the 1950s, an industrial boom, due in part to development programs such as Operation Bootstrap, led to the downfall of agriculture as the principal industry on the island. During this decade automobiles became more widely available. Newer, and more efficient roads and highways along with the closure of sugarcane mills displaced the need for rail transportation. It was not long that it was realized that an alternative means of mass transportation was needed in addition to the public bus system to alleviate the severe traffic situation that was being created, especially in the San Juan metropolitan area.

Return of rail transit[edit]


Passengers disembarking at Roosevelt Station

In 1967, proposals were made for the construction of a rapid rail transit system to serve the city of San Juan. In 1971, the major T.U.S.C.A. study—funded jointly by the Puerto Rico Planning Board and the U.S. federal government— recommended an islandwide, elevated transit system and new community development program. That proposal would have traversed and also served the San Juan Metro Area, connecting it with the rest of the island without the necessity of highway construction. However, it was not until 1989 that Puerto Rico's Department of Transportation and Public Works (Departamento de Transportación y Obras Públicas or DTOP in Spanish) officially adopted a proposal to begin design and construction of a rail system for the San Juan metropolitan area. The ridership demand for such a system had to be forecast using a mathematical model prepared by a team of transportation planners and engineers. By 1992, various alignments of the proposed system were considered, but the final design chosen served only certain parts of the metro area, and not Old San Juan. The name "Tren Urbano" (Urban Train) was chosen for the system. In 1993, the Federal Transit Administration (FTA) selected it as a Turnkey Demonstration Projects under the Intermodal Surface Transportation Efficiency Act of 1991. During 1996 and 1997, seven design-build contracts were awarded for different segments of the Tren Urbano Phase 1 system.

A number of companies shared the tasks for building the Tren Urbano including Siemens AG which was granted a concession to design and build the line and its rolling stock,[6] and to operate it for the first five years. The company won a contract which was a "first" for North America in the scope of the work which it involved, and which was awarded in July 1996.


Bayamón Station

The construction project was plagued by delays, contractual disputes between the government and companies involved in the undertaking, as well as investigations into possible mismanagement of funds. The project cost was US $2.28 billion.[7]

Free service[edit]

The rail system was officially inaugurated on December 19, 2004 (2004-12-19). After this date, free service was offered on weekends until April, 2005 when weekdays were added to the free service. Popularity grew quickly and by the end of the free period 40,000 people were using the train on a daily basis. By late 2005, however, ridership had fallen to 24,000, less than one-third of the 80,000 projection (and well below the projection of 110,000 for 2010).[8]


Paid fare service started on June 6, 2005 (2005-06-06).[7] In 2006, average weekday boardings stood at 28,179 and in 2007, ridership decreased to 27,567.[7] Nonetheless, by the third quarter of 2008 average weekday ridership had increased to 36,500.[9]

Issues and concerns[edit]

The Tren Urbano has no service to Old San Juan, Santurce, the Luis Muñoz Marín International Airport (nor to many other parts of Guaynabo, Bayamón, and San Juan), and does not serve important suburbs like Cataño, Toa Baja, Toa Alta, Carolina, Trujillo Alto, Canóvanas and others, which helps to explain low ridership. Some question the viability of this system for additional reasons, such as the lack of an island-wide public-transportation system, such as the T.U.S.C.A. system proposed in 1971. The inner-city, public bus transportation system—the Metropolitan Bus Authority (AMA)—that operates in the Greater San Juan Metro Area is considered unreliable by most people, and it does not have a regular schedule. Integration with public mass transit systems, such as the AMA and the AcuaExpreso (an urban ferry), was initially poor and remains a challenge for the DTOP.

COVID-19 Crisis[edit]

During the COVID-19 pandemic in Puerto Rico, services on the Tren Urbano were halted by executive order to try to stop the spread of the virus.[10]


Tren Urbano is currently made up of a single rapid transit route. It consists of 16 stations, ten of which are elevated, four at grade or in open cuttings, and two underground. It goes mostly through suburban areas. All stations are designed to handle three permanently coupled pairs (6 vehicles). The stations in the system are:

Each of the 16 stations boasts unique artwork and architectural style.

A maintenance depot and operations control center is located halfway along the route, between Martínez Nadal and Torrimar stations.


Tren Urbano fare card in 2012

A single trip costs $1.50 ($0.75 if customers transfer from an AMA bus) including a 1-hour bus transfer period. If a customer exits the station and wants to get back on the train the full fare must be re-paid; there is no train to train transfer period. Students and Seniors (60–74 years old) pay 75 cents per trip. Senior citizens older than 75 and children under 6 ride for free. Several unlimited passes are also available.

A stored-value multi-use farecard may be used for travel on buses as well as on trains. The value on the card is automatically deducted each time it is used. It is a system similar to the MetroCard system used in New York City.

Rolling stock[edit]

Tren Urbano maintenance and storage facilities

Tren Urbano's fleet consists of 74 Siemens, stainless steel-bodied cars, each 75 feet (23 m) long. Each vehicle carries 72 seated and 108 standing passengers. Trains have a maximum speed of 62 miles per hour (100 km/h), and average 20.6 miles per hour (33.2 km/h) including stops. All cars operate as married pairs and up to three pairs will run together at any time. Tren Urbano currently operates 15 trains during rush hours, while the remaining cars stand at the yards or serve as backup should a train experience problems. The rolling stock was assembled at the Siemens plant in Sacramento, California.[11]

Power is provided by AC traction motors, chosen over DC as they contain fewer moving parts and require less maintenance. The trains share many characteristics with the stock built by Siemens for Boston MBTA's Blue Line route (700 series). It is electrified by third rail at 750 V DC.

Air-conditioning systems have been specially designed to cope with the hot and muggy conditions commonly experienced in the metropolitan area.

A yellow color powered flat car is visible at the maintenance facility. Some metro cars have been used to transport material when not in service.

Tren Urbano Facilities[edit]

Rolling stock for Tren Urbano metro cars are stored at Hogar del Nifio Operations and Maintenance Building at Avenida Rafael Martínez Nadal near Puerto Rico 21. It is a short distance from Martínez Nadal station.[12]

The metro cars are stored on outdoor tracks and a large maintenance building for servicing the fleet.

Both Bayamon and Sagrado Corazon station have dead end tracks at the end of their respective station that can store two train sets.

Bus terminals[edit]

San Juan metropolitan area transit map published by DTOP in 2015

The bus system in the San Juan metropolitan area has been designed around the Tren Urbano. Five train stations also serve as bus terminals: Sagrado Corazón, Piñero, Cupey, Martínez Nadal, and Bayamón.

Expansion plans[edit]

Carolina Tunnel (1 of 2) at the Río Piedras subway station.

The infrastructure of the Tren Urbano, with stations built for six–car train sets and a minimum headway of 90 seconds, has a maximum capacity of 40,000 passengers per hour per direction, compared to 3,000 passengers per hour per direction for the current peak hour 8 minute headway and 4-car trains, and to an actual daily ridership of roughly 40,000 commuters. The train system is thus working at 13.33 per cent capacity, and also well under the 110,000 rail passengers planned by 2010.

In addition, with a fleet of 74 rail vehicles in the local yard to cover at least double the 10.7 miles (17.2 km) system length, and with all the basic facilities and capital equipment needed for the functioning in place, it is indispensable that the train be extended as it was originally intended to include higher-density areas of the central district for it to be operationally successful and sustainable.

The Puerto Rico's Department of Transportation and Public Works (DTPW) plans include:

Phase 1A[edit]

  • Phase 1A[13] of the project includes the extension of the original line westward from the current terminal at Sagrado Corazón (Sacred Heart) through a medium to high density corridor in two stations: San Mateo to a new terminal at Minillas at the heart of Santurce, a distance of 1,500 meters, with a possible transfer from Minillas to a future tram line from the historic district of Old San Juan to the Luis Muñoz Marín International Airport. Phase 1A was approved by the United States Environmental Protection Agency.[14]
  • By the end of fiscal 2008, the legislature identified federal funds for the expansion of the train in its second phase. It was expected that during fiscal year 2009 the legislature would begin to issue bonds for this purpose. As of 2019, there are no plans to expand the Tren Urbano.

Phase 2[edit]

  • Upon opening of the Tren Urbano, there were further proposals to extend the rail system to other municipalities such as Carolina. A two-way tunnel, 136 ft (42 meters) in length, south of the Río Piedras Station is already built for a future expansion along heavily transited 65th Infantry Avenue.[15]
  • In 2012, the government informed they had no plans to expand the Tren Urbano in the future, and that they were moving to other alternatives to help alleviate traffic.[16]

Other projects[edit]

There are several projects to improve public transport connectivity:

  • Also being considered (2008) is a tramway from Sagrado Corazón station to colonial Old San Juan in Puerta de Tierra where many of Puerto Rico's state government buildings are located. It will run partially on an existing right-of-way on Fernández Juncos Ave.[17] Construction was originally projected to start in 2009, but the Fortuño administration is exploring other financing options, such as the American Recovery and Reinvestment Act of 2009.[citation needed] The first line of the tramway will be built by the Municipality of San Juan (MSJ) and will be known as the Sistema de Asistencia, Transportación y Organización Urbana (System of Assistance, Transportation and Urban Organization) (SATOUR).
  • The proposal to build a second tram line to Carolina, possibly with a station at the Luis Muñoz Marín International Airport.
  • The extension of a line to Caguas by the existing Urban Train from the Centro Médico or Cupey stations,
  • or a second plan for the development of a line to Caguas with a new "Light regional railcar" network system with future extensions throughout the island.[18]

See also[edit]


  1. ^ "Public Transportation Ridership Report - First Quarter 2018" (pdf). American Public Transportation Association (APTA). May 23, 2018. Retrieved August 15, 2018.
  2. ^ "Public Transportation Ridership Report - Fourth Quarter 2017" (pdf). American Public Transportation Association (APTA). March 13, 2018. Retrieved August 15, 2018.
  3. ^ a b "(home)". Alternate Concepts, Inc (ACI).
  4. ^ "Tren Urbano Rapid Transit System, Puerto Rico". Railway-Technology. 2002.
  5. ^ "Canadian Transit Interests Outside Canada". University of Manitoba.
  6. ^ "Projects Tren Urbano – Rio Piedras Section". Retrieved June 13, 2009.
  7. ^ a b c "Archived copy" (PDF). Archived from the original (PDF) on May 20, 2011. Retrieved June 10, 2011.CS1 maint: archived copy as title (link) FTA – The Predicted and Actual Impacts of New Starts Projects – 2007
  8. ^ "Tren Urbano PR another way low transit ridership forecast". TOLLROADSNews. November 20, 2005. Retrieved April 13, 2007.
  9. ^ "Transit Ridership Report" (PDF). Heavy rail. December 4, 2008. Archived from the original (PDF) on February 6, 2009. Retrieved December 5, 2008.
  10. ^ "Nueva orden ejecutiva suspende las operaciones del Tren Urbano y la AMA". El Nuevo Dia. Retrieved September 4, 2020.
  11. ^ "San Juan Tren Urbano". Railway Technology.
  12. ^ "Showing Image 80652".
  13. ^ "Projects Tren Urbano – San Juan, Puerto Rico/Minillas Extension". Archived from the original on May 28, 2010. Retrieved April 21, 2010.
  14. ^ "Environmental Impact Statement on the Phase 1A Extension of Tren Urbano". U.S. Environmental Protection Agency. Retrieved April 12, 2010.
  15. ^ "Tren Urbano". American Underground-Construction Association. Archived from the original on September 29, 2007.
  16. ^ Ortíz, Joel (February 5, 2012). "Abandona el gobierno la era del Tren Urbano". El Nuevo Día (in Spanish).
  17. ^ "San Juan Tramway Proposal". (in Spanish). Archived from the original on May 1, 2007. Retrieved April 15, 2010.
  18. ^ "Proyecto de tren ligero entre Caguas y San Juan". (in Spanish). Archived from the original on September 28, 2007. Retrieved April 12, 2010.

External links[edit]

External image
Rapid Transit Systems – San Juan – Photographs of the Tren Urbano

Coordinates: 18°23′26″N 66°06′22″W / 18.39055°N 66.10618°W / 18.39055; -66.10618