4 ms·In Europe, it's about 12-30 million € / km for high speed tracks (according to Wikipedia).by chokma 14y agoIn Europe, it's about 12-30 million € / km for high speed tracks (according to Wikipedia).Symmetry 14y agoAnd US construction costs tend to be at least twice what they are in Europe.eru 14y agoThat's for public projects?