Roca Line

Roca Line
Overview
Service typeCommuter rail
StatusActive
LocaleBuenos Aires Province
PredecessorBA Great Southern Railway
First service1948 (1948)
Current operator(s)Trenes Argentinos
Former operator(s)Argentren
Ridership101,490,327 (2019)
WebsiteRoca Line
Route
TerminiConstitución
Stops70
Distance travelled198 km
Technical
Rolling stock
Track gauge1,676 mm (5 ft 6 in)
Electrification25 kV 50 Hz AC overhead lines
Track owner(s)Government of Argentina

The Roca line is a 1,676 mm (5 ft 6 in) gauge commuter rail service in the Buenos Aires Province, Argentina, part of General Roca Railway network. The service is currently operated by State-owned company Trenes Argentinos, from the city-centre terminus of Constitución south to Ezeiza, Alejandro Korn, La Plata, Cañuelas, Chascomús, Gutiérrez and Lobos, and west to Sarmiento Line's station Haedo. The transfer stations between the branch lines are Avellaneda, Temperley, Bosques and Berazategui.

The line consists of 198 kilometres of track (55 of which are electrified), 70 stations, 146 grade crossings, 907 daily services through its different branches, and carries half a million passengers daily, making it the longest and most extensively used line of the Buenos Aires commuter rail network. Large electrification and infrastructure improvement works were undertaken on the line in the early 2010s, with brand new electric multiple units entering service on 8 June 2015.