Alvia is a high-speed train in Spain used by Renfe Operadora for long-distance service with a top speed of 250 km/h. The trains have the ability to use both Iberian gauge and standard gauge, which allows them to travel on the recently constructed high-speed lines for part of the journey before switching to the ″classic″ Iberian gauge network to complete it. Trains that run exclusively on high-speed tracks are branded AVE or Avant.
As of March 2009[update], RENFE Class 120 and RENFE Class 130 trains are in service. Class 120 trains are used on the routes from Madrid to Pamplona, Logroño, Irún, and Hendaye (running on high-speed lines from Madrid to Valladolid and changing gauge there), and between Barcelona and Vigo, Irún, Bilbao (running on high-speed lines between Barcelona and Zaragoza). Class 130 trains are employed on the routes from Madrid to Alicante (on high-speed lines from Madrid to Valencia), and to Gijón, Santander, Bilbao, Irún, and Hendaye (France) changing gauge at Valladolid, León and Venta de Baños.