Is it just me or is no one addressing the most obvious disadvantage of this plan? Building a city along a "line" is simply a terrible idea. As far as I can tell, every major city in the world is based around a downtown "core" with less dense areas radiating outward from it, except where geographical barriers prohibit this. The advantages of this model are so manifold that I can't even begin to enumerate them—everything from (relatively) short commute times to equidistant access to central services from every direction. I cannot think of a single advantage of having a city that is a straight line.