Barcelona Metro line 4

Barcelona Metro line 4
Platforms at Urquinaona
Overview
Service typeRapid transit
LocaleBarcelona
First service1973 (1973)
Current operator(s)TMB
Route
TerminiTrinitat Nova
La Pau
Stops22
Distance travelled16.7 km (10.4 mi)
Average journey time27 minutes
Technical
Rolling stock2100 and 9000 series
Trinitat Nova, Triangle Ferroviari depots
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Electrification1,200 V DC rigid overhead wire
Track owner(s)TMB
Barcelona Gran Metro
1934
Lesseps
Fontana
Diagonal-Passeig
de Gràcia
Aragó
current
current
Catalunya
Urquinaona
Liceu
Jaume I
Correus

Line 4, often known as "Línia Groga" (Yellow line), is a rapid transit line of the Barcelona Metro network, operated by TMB and part of the ATM fare-integrated transport network.

Originally opened in 1973, Line 4's route follows an incomplete loop pattern, linking the heart of Barcelona to the districts of Horta-Guinardó and Nou Barris on one side and the neighborhoods of la Barceloneta and Poblenou on the other. Works are currently in progress to extend the line to the future Sagrera railway station and to La Sagrera rapid transit hub.