Altaria was a brand name of a group of fast long-distance passenger railway services operated by Spanish national railway company Renfe Operadora and connecting Madrid to Algeciras, Alicante, Barcelona, Cádiz, Cartagena, Granada, Irún, Logroño, Murcia, Pamplona, and San Sebastián.Madrid - Barcelona Altarias have been replaced by AVE trains upon completion of the Madrid–Barcelona high-speed rail line in early 2008.
Altaria trains were composed of locomotive-hauled Talgo coaching stock equipped with gauge-changing technology which enabled the carriages to run on both conventional () track and the narrower international track which is used for the newer high-speed network in Spain. Altaria trains were able to achieve speeds of up to 200 km/h on the high-speed lines.
Since 22 June 2022, the brand was replaced by the InterCity services along with other Renfe brands.
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