High-speed rail requires the tracks to be as flat and straight as possible. Therefore, the fragmented orography of this part of Galicia has caused the cost of the line Ourense-Santiago to rocket up to €2.5 billion euros (of its 87 km, 50 km pass over a viaduct, or go through a tunnel). However, it has not been very much of a public success. During its first year of operation (2012), the trains did not even reached an occupancy rate of 20%, and there has not been a dramatic increase after that, in spite of the new policy of lower ticket prices.