The Barcelona - Valencia trains at 10:15 and 12:00 are very similar.   The travel time is different because, for commercial reasons, one of them makes more stops than the other but above all because the one at 12:00 stops in the center of Tarragona while the one at 10:15 stops at a station in Tarragona but 15 km from the center. The road that does not pass through the center of Tarragona allows higher speeds in that section.   The 10:15 train comes from Figueres (next to the