Tren Urbano

Tren Urbano
Train arriving at Río Piedras station
Overview
OwnerPuerto Rico Department of Transportation and Public Works
LocaleSan Juan, Guaynabo and Bayamón
Transit typeRapid transit
Number of stations16
Daily ridership19,600 (weekdays, Q1 2025)
Annual ridership4,438,400 (2024)
HeadquartersGuaynabo, Puerto Rico
Websitetutrenpr.com
Operation
Began operationDecember 17, 2004 (2004-12-17)
Operator(s)Alternate Concepts
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
Headway8 minutes (peak)
12 minutes (off peak)
Technical
System length10.7 mi (17.2 km)
Track gauge4 ft 8+12 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

planned extensions
to Old San Juan and
Sagrado Corazón
Hato Rey
Roosevelt
Domenech
Piñero
Universidad
Río Piedras
planned extension
to Caguas
Cupey
Centro Médico
San Francisco
Las Lomas
 
Hogar del Niño
Operations and
Maintenance Building
Martínez Nadal
Torrimar
Jardines
Deportivo
Bayamón

The Tren Urbano (English: Urban Train) is a 10.7-mile (17.2 km) automated rapid transit system serving the main metropolitan area of Puerto Rico, specifically the capital municipality of San Juan, and the adjacent municipalities of Guaynabo and Bayamón in the northeast of the main island. The Tren Urbano consists of 16 stations operating on 10.7 miles (17.2 km) of track along a single line. In 2024, the system had a ridership of 4,438,400, or about 19,600 per weekday as of the first quarter of 2025.

The Tren Urbano complements other forms of public transportation services in the San Juan metropolitan area such as the Metropolitan Bus Authority, the 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). Tren Urbano is also the Caribbean's first rapid transit system.