Trambesòs

View of one of the railway platforms, the tracks and one of the shelters of Auditori – Teatre Nacional tram stop. Several facilities such as the ticket machine, two noticeboards and a passenger information display (PID) screen can be seen.

The system currently comprises 27 stops, each following the same design and technical characteristics as Trambaix stops. Almost all stops have 60-metre-long (200 ft) low platforms (35 centimetres or 14 inches above rail level) with a 6-metre-long (20 ft) ramp at each end of the platform.[14] This allows wheelchairs, prams, pushchairs and the elderly to board the tram easily with no steps.[6] The stops also have different platform layouts depending on the street section where they are located. Currently there are 8 stops with 1 island platform and 19 stops with 2 side platforms, three of which are located underground in the Gran Via section. There are also 8 stops that offer a transfer to Barcelona Metro network while only Estació de Sant Adrià stop offers a transfer to Rodalies de Catalunya commuter rail services, becoming the only stop of the whole network that offers a transfer to some kind of heavy rail services.

Design and facilities of the stops are meant to provide universal access as one of the goals of the network since its planning.[15] The stops follow a common design that has a discrete look to them, dominated by metallic materials and panes of glass. Facilities for passengers include one or two shelters equipped with an intercom, a PA system, a passenger information display (PID), a CCTV system, a noticeboard and ticket vending machines.[16] The shelters were designed by architects Antoni Roselló and Rafael Cáceres, who were awarded in the design section of the 2004 City of Barcelona Awards for this design.[17][18]

Three east–west routes currently make up the Trambesòs system. The Gran Via section is used by both routes T5 and T6, while the Avinguda Diagonal section and the branch in the La Mina neighbourhood are only used by routes T4 and T6, respectively. All routes converge at Plaça de les Glòries Catalanes, becoming the only stop of the whole network that provides a transfer to all Trambesòs routes.

Routes are generally displayed by a teal square with a white "T" followed by the route number in it (e.g.  ). Trambaix routes are also displayed with a "T" to stand out those are also tram services so the difference between the two networks is on the numbering: Trambaix uses numbers 1–3, while Trambesòs uses numbers 4–6.

• Route T4 starts near Parc de la Ciutadella in Barcelona and addresses towards Plaça de les Glòries Catalanes through Avinguda Meridiana. Then it continues towards Sant Adrià de Besòs railway station via Avinguda Diagonal and Avinguda d'Eduard Maristany, where it runs parallel to the sea.
• Route T5 starts at Plaça de les Glòries Catalanes and terminates at Gorg metro station in Badalona via the Gran Via section.
• Route T6 runs from Plaça de les Glòries to Sant Adrià de Besòs railway station sharing the Gran Via section together with route T5 and via the branch that passes across La Mina neighbourhood in Sant Adrià. Formerly, this route had run from Sant Adrià de Besòs railway station to Gorg metro station in Badalona via La Mina branch without entering Barcelona.

Name	First service	Current service	Number of stops	Length	Journey time[19]	Rush hour frequency[19]	Off-peak time frequency[19]	Map
	Ciutadella | Vila Olímpica ↔ Estació de Sant Adrià
	8 May 2004[20]	14 July 2004[20]	14	6,458 m 21,188 ft[21]	22 min	every 8 min
	Vila Olímpica  · Wellington · Marina  · Auditori | Teatre Nacional · Glòries  · Ca l'Aranyó · Pere IV · Fluvià · Selva de Mar  · El Maresme  · Fòrum · Campus Diagonal-Besòs · Port Fòrum · Estació de Sant Adrià
	Glòries ↔ Gorg
	14 October 2006[22]	8 September 2007[23]	13	6,993 m 22,943 ft[21]	22 min	every 16 min
	Glòries  · La Farinera · Can Jaumandreu · Espronceda · Sant Martí de Provençals · Besòs  · Alfons el Magnànim · Parc del Besòs · La Catalana · Sant Joan Baptista · Encants de Sant Adrià · Sant Roc  · Gorg
	Glòries ↔ Estació de Sant Adrià							—
	16 June 2008[21]	20 February 2012[24]	11	4,485 m 14,715 ft	20 min	every 16 min
	Glòries  · La Farinera · Can Jaumandreu · Espronceda · Sant Martí de Provençals · Besòs  · Alfons el Magnànim · Parc del Besòs · La Mina · Port Fòrum · Estació de Sant Adrià

Diagonal line
Proposed  Trambaix Francesc Macià Casanova Provença-Diagonal Casa de les Punxes Verdaguer Sicília Monumental Trambesòs Glòries Trambesòs

The original project about the introduction of a modern tram system in Barcelona comprised the creation of a new tram route covering the whole Avinguda Diagonal, between Zona Universitària and Diagonal Mar shopping mall.[25] With the opening of Trambaix and Trambesòs, the possibility of creating a new tram line through Avinguda Diagonal connecting both networks became more popular, and even saw a demonstration in favor of the union of the two tram networks in late September 2005.[26] That same year, and after the announcement by the Generalitat of Catalonia to study the project, the Barcelona City Council announced its opposition, even after the publication of two studies that positively assessed the linkage through Diagonal.[26]

In 2008, the Mayor of Barcelona Jordi Hereu announced the refurbishment of Avinguda Diagonal, which included the construction of the new tram line. The creation of a new office to carry out the "Diagonal Project" was also announced and because of opposition demand, a referendum would be held among other actions to enhance citizen participation, the first referendum proclaimed by the City Council ever to be held in Barcelona.[27] During the participatory and technical process involved in the refurbishment of Avinguda Diagonal throughout 2009, various questions and suggestions were raised to the City Council, and many of the points of the reform such as the construction of the new tram line were called into question.[28] The referendum was officially announced in December and was planned to be held on 10–16 May 2010 with two projects to be chosen and an option to dismiss them. The voting process would take place at several municipal offices used as polling places by voting using touchscreens, though it was also possible to vote through the Internet.[29] Citizens were asked about how they would prefer to reform the avenue, and if they would prefer to convert it into a boulevard or an avenue of a pedestrian walkway nature.[30] The development of the referendum was marked by fierce controversy from day one, and specially because of continuous technical faults involving the electronic voting system. The winning option was finally the "C" one, dismissing all of the projects with almost 80% of votes counted. After the failed referendum, there was a political crisis of the Barcelona City Council which resulted with the resignation of two politicians from the local government team, and the linking of the two tram networks appeared to have stagnated.[31]

The succeeding local government, headed by Xavier Trias in 2011, dismissed the proposal of connecting Trambaix and Trambesòs through Avinguda Diagonal , though it has been agreed to reactivate the linkage project with the Generalitat.[32] Trias stated he was committed to connecting the two tram systems through different streets in the district of Eixample and objects to the construction of a tram line through Diagonal. One of the new proposed routes would mostly pass through Provença Street, creating a sort of "shuttle tram" for tourists between Sagrada Família and La Pedrera, while the other one would mostly pass through Gran Via.[33] However, this was never realised, with Trambaix and Trambesòs remaining unconnected upon the departure of Trias' government in 2015.

The incumbent mayor, Ada Colau, has continued promoting the connection of the TRAM along the Avinguda Diagonal, however was defeated by opposition parties when she presented the proposal to the city council in 2018.[34]

The Infrastructure Master Plan (PDI) 2011–2020 by the Autoritat del Transport Metropolità (ATM) for Barcelona metropolitan area includes various proposals to extend the existing tram network. In general, it is about extension projects on existing routes following major arterial corridors and with a completion of projects beyond 2020.

• Estació de Sant Adrià ↔ Port de Badalona: The expansion of route T4 from Sant Adrià de Besòs railway station towards Badalona will comprise the construction of 3 new stops, 1.7 km of tracks along Eduard Maristany Avenue and the purchase of a new tramcar. It is meant to serve Badalona's coastal strip and gain more than 3,000 new passengers, 270 of which from the private car. That new section has an estimated cost of €22 million and is expected to be further extended to reach Badalona railway station in a future.[35]
• Ciutadella | Vila Olímpica ↔ World Trade Center: It is expected to give continuity to the current southern terminus of route T4 situated at Ciutadella – Vila Olímpica stop with that extension project. The new suggested route would surround Parc de la Ciutadella passing through the nearest side to the sea, and then it would follow Barcelona's coastal strip up to the waterfront where World Trade Center Barcelona is located, serving the Port Vell area included in the Barcelona Seaport complex.[35]
• Auditori | Teatre Nacional ↔ Plaça Urquinaona: This enlargement is proposed as an extension of route T5 towards Barcelona city centre that starts near Auditori – Teatre Nacional stop up to Plaça Urquinaona, passing through the arterial corridors of Vilanova Avenue and Ronda de Sant Pere.[35]
• Torribera ↔ Sant Adrià: Although this project does not appear in the updated PDI 2011–2020, it has been proposed by the Sant Coloma de Gramenet City Council and appeared on PDI 2010–2018 which was drawn up by the former government of the Generalitat of Catalonia and the ATM. The project involves the construction of a new tram line connected to Trambesòs network and which could be built as an extension of route T6. That new tram line would run parallel to the arterial corridor that is formed by the drainage basin of river Besòs, linking the municipality of Sant Adrià de Besòs to Santa Coloma de Gramenet up to Torribera Center, a Diputació de Barcelona-owned building used by the University of Barcelona (UB) located in the northern part of town.[36][37]