The idea of the map came from Kim Stanley Robinson’s Mars trilogy and it is one of the great science fiction books of our times. Since NASA is planning for new Mars exploration it is still a very timely subject. There are a lot of new industries. Solar energy, bio-fuels. No oil or coal or polluting industries. We have Mini-Black holes, bottled Sunshine to name a few. Transportation is all electric. The ground tolerance was adjusted, so there is no use for for the tunnels (they are expensive), there are no wood or trussed metal bridges.