False equivalence - railways are things we know how to build pretty well by now. The hard bit is building a corridor straight and level enough to lay the rails. Once you have that, the sleepers are literally just dropped on, rails fed out and then it's all clipped in and welded, and ballast dropped on and tamped with machines.
This is a normal thing done every day around the world, since track has to be periodically re-ballasted and sleepers eventually upgraded and rails renewed as normal maintenance. It truly is the easy bit.
Rail overhead line equipment and signalling systems are much more tricky work, but the rail laying itself is easy. The vast majority of the work though is building cuttings, embankments, bridges, viaducts and stations.
This is a normal thing done every day around the world, since track has to be periodically re-ballasted and sleepers eventually upgraded and rails renewed as normal maintenance. It truly is the easy bit.
Rail overhead line equipment and signalling systems are much more tricky work, but the rail laying itself is easy. The vast majority of the work though is building cuttings, embankments, bridges, viaducts and stations.