Barcelona Metro line 4

Line 4, currently known as Trinitat Nova – La Pau, usually called "línia groga" (yellow line), is a line in the Barcelona Metro network operated by TMB.

Chronology

1973 – Joanic-Jaume I section opened (part of it had been part of L3 previously)
1974 – Joanic-Guinardó section opened
1976 – Jaume I-Barceloneta section opened
1977 – Barceloneta-Selva de Mar section opened
1982 – Guinardó-Via Júlia and Selva de Mar-La Pau sections opened.
1985 – La Pau-Pep Ventura section opened
1999 – Via Júlia-Trinitat Nova section opened.
2002 – La Pau-Pep Ventura section closed (and moved to L2)
2003 – El Maresme-Fòrum station opened.

Technical details

 Colour on map: Yellow
 Number of stations: 22
 Type: Conventional metro
 Length: 
 Rolling stock: 9000 and 2100 series
 Journey time: 27 minutes
 Track gauge: 
 Traction: Electricity
 Power supply: Rigid overhead wire
 Open-air sections: No
 Mobile phone coverage: Partial
 Depots: Trinitat Nova, Verneda (Triangle Ferroviari)

Current stations

Stations or lines shown in italics are under construction.
 Trinitat Nova (L11)
 Via Júlia
 Llucmajor
 Maragall (L5)
 Guinardó – Hospital de Sant Pau (L9, L10)
 Alfons X
 Joanic
 Verdaguer (L5)
 Girona
 Passeig de Gràcia (L2, L3, RENFE)
 Urquinaona (L1)
 Jaume I
 Barceloneta
 Ciutadella-Vila Olímpica (T4)
 Bogatell
 Llacuna
 Poblenou
 Selva de Mar (T4)
 El Maresme-Fòrum (T4)
 Besòs Mar
 Besòs (T5)
 La Pau (L2)
 Santander (under construction)
 Sagrera-Tav (under construction) (L9, L10)
 Sagrera-Meridiana (under construction) (L1 L5, L9, L10)

References
Trenscat

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