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Euskotren Tranbia

Light-rail transit brand operating the tram networks of Bilbao and Vitoria-Gasteiz in Spain's Basque Country.

Last updated August 26, 2026

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Overview

Euskotren Tranbia is the tramway operating brand used by Euskotren for the urban light-rail networks in Bilbao and Vitoria-Gasteiz, two major cities in the Basque Country of northern Spain. It is one of Euskotren's four commercial divisions and forms part of the region's publicly managed transport system. Euskotren is a public company managed by the Basque Government, while the fixed infrastructure used by the tramways is owned by Euskal Trenbide Sarea, the Basque Railway Network. This separation places Euskotren Tranbia primarily in the role of railway and passenger-service operator rather than infrastructure owner. The first network entered service in Bilbao in 2002 under the EuskoTran name. Construction took approximately two years, and the initial route connected Bilbao-Atxuri station with Uribitarte. The network was subsequently extended toward important destinations, including the Guggenheim Museum Bilbao, Basurto Hospital and La Casilla. The Bilbao system is integrated into the city's streetscape, using a mixture of dedicated track, shared street space and sections coordinated with local bus facilities. Its network has 14 stops. A second Euskotren Tranbia system opened in Vitoria-Gasteiz in 2008. It developed into a Y-shaped network with two branches crossing the city from south to north. The Vitoria-Gasteiz network has 23 stops and also combines reserved alignments, grass-track sections and street-running infrastructure. In some locations, tram infrastructure shares dedicated lanes with TUVISA buses in Vitoria-Gasteiz and Bilbobus services in Bilbao, reflecting the brand's role within broader municipal transport networks rather than as a stand-alone intercity railway. Both systems emphasize accessible, relatively simple urban boarding. Stops generally use low platforms or pavement-level arrangements, and most are unstaffed and equipped with automated ticket machines. Passenger information displays provide network maps, time, temperature and service-frequency information. Level boarding and wide access areas are designed to accommodate wheelchairs, prams, pushchairs and older passengers. Three Bilbao stops—Atxuri, Ribera and Abando—use the adjacent sidewalk rather than a dedicated platform; Atxuri is an exception to the otherwise largely unstaffed-stop pattern. Ticketing supports paper tickets and smartcards, including BAT, Barik and Mugi products. Single, daily and monthly fares are available, with each network using a single-fare structure rather than zone-based pricing. The two networks operate a fleet of CAF Urbos trams in several configurations. The 400 series comprises shorter three-section vehicles assigned to Bilbao; the 500 series consists of five-section vehicles originally associated with Vitoria-Gasteiz; and the 600 series comprises longer seven-section vehicles for Vitoria-Gasteiz. The fleet described in the reference material totals 26 vehicles. The livery developed from grey-and-green striping to a predominantly white-and-green appearance. Euskotren Tranbia has also been associated with proposed extensions and new tram projects in the wider Bilbao metropolitan area. Plans for a Barakaldo tram and the Leioa tram were intended to broaden the regional network and connect with other rail or tram corridors. The Leioa project progressed to construction of a depot and offices, but the line itself was postponed repeatedly and shelved in 2018. The Barakaldo concept, which included connections toward Urbinaga and Sestao, had not shown progress since 2010 according to the reference material. These projects illustrate both the ambitions and the practical limits of expanding the Basque urban-rail system.

History

Euskotren Tranbia is the tramway division and commercial brand of Euskotren, the Basque public transport company. Its development belongs to the Basque Country's broader effort to provide regionally coordinated passenger transport under public control. Euskotren operates several forms of transport, while Euskotren Tranbia focuses on urban tram services. The associated infrastructure is owned by Euskal Trenbide Sarea, allowing the operator and infrastructure manager to remain institutionally distinct. The first Euskotren Tranbia service was established in Bilbao. The tramway was built over approximately two years and opened to passengers in 2002, initially linking Bilbao-Atxuri station with Uribitarte. At launch and during its early expansion, the system was known as EuskoTran. The line was later extended to serve prominent civic, cultural and medical destinations. Extensions reached the Guggenheim Museum Bilbao, Basurto Hospital and La Casilla, turning the service into a useful cross-city urban corridor rather than a short waterfront shuttle. The Bilbao network uses 1,000 mm narrow-gauge track and operates in a mixed urban environment. Depending on the section, trams run on dedicated track, in streets shared with general traffic or in arrangements coordinated with bus lanes. The network's stops are designed to fit closely into the existing city fabric. Most stops are unstaffed and use automatic ticket machines and passenger-information screens. Atxuri, Ribera and Abando use sidewalk boarding arrangements rather than separate platforms. The Bilbao system has 14 stops. Vitoria-Gasteiz became the second Euskotren Tranbia city in 2008. Its system was designed as a Y-shaped network, with two branches crossing the city from the south toward the north. The network includes both conventional paved alignments and grass-track sections, and it has 23 stops. As in Bilbao, some dedicated corridors are shared with local bus operations, in this case TUVISA. The stop design provides level or near-level access, broad boarding areas and information systems intended to support independent use by passengers with reduced mobility. Fare arrangements across the two systems include paper tickets and regional smartcards. BAT, Barik and Mugi cards are accepted within the relevant integrated ticketing framework, alongside single, daily and monthly products. Each tram network uses a single fare rather than a zone-based structure. The brand's rolling stock is based on CAF Urbos vehicles. The 400 series consists of eight shorter three-section trams for Bilbao, while the 500 series contains eleven five-section vehicles originally built for Vitoria-Gasteiz. The 600 series contains seven longer seven-section vehicles for Vitoria-Gasteiz. The larger 600-series vehicles increased capacity on the Vitoria-Gasteiz network, and three 500-series vehicles were intended for transfer to Bilbao. The vehicles are low-floor designs, with the 500 and 600 series offering full low-floor access according to the reference material. Expansion proposals have included additional tram corridors around Greater Bilbao. A Barakaldo project envisaged a circular route in the municipality, beginning at Urbinaga, connecting with the proposed Leioa corridor and including stops in Barakaldo and Sestao. The plan had not advanced since 2010. The Leioa project was planned in phases: a depot and offices, followed by a line connecting the University of the Basque Country campus with central Leioa, and potentially a later crossing of the Bilbao estuary toward the Left Bank. Only the first phase was built, and the project was shelved in 2018 after repeated postponements. Euskotren Tranbia therefore remains centered on its operating networks in Bilbao and Vitoria-Gasteiz, with its identity tied to publicly provided, accessible and city-integrated tram transport.

  • 2018

    Leioa tram project shelved

    [1]

    After construction of its depot and offices but repeated postponements of the operating line, the Leioa tram project is shelved.

  • 2010

    Barakaldo project stops progressing

    [1]

    The proposed Barakaldo tram project shows no reported progress from 2010 onward.

  • 2008

    Vitoria-Gasteiz network opens

    [1]

    A second tram system enters service in Vitoria-Gasteiz, later developing into a Y-shaped network with two branches.

  • 2002

    Bilbao tram service opens

    [1]

    The first Euskotren Tranbia tram network begins operation in Bilbao under the EuskoTran name, initially linking Bilbao-Atxuri station with Uribitarte.

Products and positioning

A publicly managed, accessible and integrated urban tram service supporting sustainable mobility in the Basque Country.

  • Urban tram service · 2002

    Bilbao tram network

    The Bilbao system began in 2002 and initially connected Bilbao-Atxuri station with Uribitarte. It was expanded to serve the Guggenheim Museum Bilbao, Basurto Hospital and La Casilla. The network has 14 stops and combines dedicated track, street-running sections and shared urban transport corridors.

  • Urban tram service · 2008

    Vitoria-Gasteiz tram network

    Opened in 2008, the Vitoria-Gasteiz system is organized as a Y-shaped network with two branches crossing the city from south to north. It has 23 stops and uses a combination of street-running, dedicated and grass-track alignments, with some corridors shared with TUVISA bus services.

  • Rolling stock

    CAF Urbos 400 series

    The 400 series comprises eight three-section trams numbered 401 to 408 and built for Bilbao. Each vehicle is approximately 24.4 metres long, offers 70 percent low-floor access and has a stated capacity of 196 passengers.

  • Rolling stock

    CAF Urbos 500 series

    The 500 series comprises eleven five-section trams numbered 501 to 511. Built originally for Vitoria-Gasteiz, the vehicles are approximately 31.4 metres long, fully low-floor and designed to carry 261 passengers. Three vehicles were intended for transfer to Bilbao following the arrival of larger trams in Vitoria-Gasteiz.

  • Rolling stock

    CAF Urbos 600 series

    The 600 series consists of seven seven-section trams numbered 601 to 607 for Vitoria-Gasteiz. At approximately 44.2 metres long, with full low-floor access and a stated capacity of 398 passengers, these are the largest vehicles in the described Euskotren Tranbia fleet.

  • Ticketing

    Integrated fare products

    Passengers can use paper tickets and regional smartcards including BAT, Barik and Mugi. Available products include single, daily and monthly tickets. Fares are structured as a single network fare rather than by travel zones.

Brand decisions

  • 2018

    Leioa tram expansion shelvedStrategy

    Background

    The planned Leioa tram was intended to connect the University of the Basque Country campus with central Leioa and potentially cross the Bilbao estuary in a later phase. Only the depot and offices were completed.

    Action taken

    The project was shelved after repeated postponements.

    Aftermath

    Euskotren Tranbia continued operating its established Bilbao and Vitoria-Gasteiz networks without the proposed Leioa extension.

Sources1 sources

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