m) Tunnels of San Pedro (8,930 m) Arroyo Valley Viaduct (1,796 m, maximum height 77.8 m) Tabladillo tunnel (2 km) Puentecilla Tunnel (1900 m) Tunel del Pinar de Antequera (1 km) (opening 8 November 2009) Reduced travel times Talgo trains were replaced by Alvia trains (RENFE Class 130) and these operate on both the high-speed line and the older lines. These trains pass through the gauge changers at Valladolid and Valdestillas or to join the General Line North from this high speed line and back by reducing their travel time by reducing the distance and increasing the commercial speed in the stretch Madrid–Valladolid. The Talgo Madrid-Galicia was diverted later by LAV circulating until Valdestillas changer, which reverses the direction of travel and change of locomotive. In this case the time reduction has been lower, only 15-20 min, while in the Galicia-Madrid train has been an advantage to using the best line to be able to recover the backlog. Services that use these lines AVE Chamartin Madrid–Segovia–Valladolid, Campo Grande–Palencia–Léon at 2:13 S-102 AVE Chamartin Madrid–Valladolid, Campo Grande–Palencia–Léon at 2:06 S-102 Avant-Chamartin Madrid-Segovia Guiomar 0:35 nonstop S121 Avant Valladolid to Madrid Chamartin station at 1:10 Segovia Guiomar S121 Alvia Madrid-Chamartin Hendaye Segovia Guiomar Valladolid-Campo Grande Burgos Miranda de Ebro Vitoria-Gasteiz Alsasua San Sebastian Irun S130 gauge change in Valladolid / Valdestillas Alvia Bilbao-Madrid-Chamartin Abando Segovia Guiomar Valladolid-Campo Grande Burgos S130 gauge change in Valladolid / Valdestillas Alvia Madrid-Chamartin Santander Segovia Guiomar Valladolid-Campo Grande Palencia Aguilar de Campóo Reinosa Torrelavega S130 gauge change in Valladolid / Valdestillas 1 train per day each direction continues its journey to Alicante Alvia Madrid-Chamartin Gijón-suburban Segovia Guiomar Valladolid-Campo Grande Palencia Sahagun Léon Mieres-Puente Oviedo Jovellanos Gijón S130-wide change in Valladolid / Valdestillas 1 train per day each direction continues its journey to Alicante Talgo Madrid-Chamartin La Coruna Segovia Guiomar Medina del Campo Zamora Puebla de Sanabria The Gudiña Orense-Joint Carballiño Santiago de Compostela Talgo VI gauge change in Valdestillas Talgo Madrid-Chamartin Pontevedra (*) Guillarei Redondela Vigo Talgo VI (*) circulates together with the branch of La Coruna to Orense gauge change in Valdestillas Speed The maximum permissible speed in line with ERTMS II in service are shown below. Note that trains are permitted to move at a maximum of over of the line. See also List of highest railways in Europe References Article in Ferropedia Construction of the LAV dossier SkyscraperCity Construction of the LAV-2 dossier SkyscraperCity