Great tubular architecture. It reminds me of the Baltar pavillion. It really changes the feel of the whole thing. Brilliant ! I know you don't really need input to have great ideas. I just wanted to add my own crazyness to the brain storming, so here's an idea I had at lunchtime (see pic) : the town train would run on magnetic ramps, and the passengers would embark by being lifted into it. The town train would be a cross between a double decker bus, a land train and the Titanic. The wait stations would be lined in the streets, and the town train would get up and down the office levels, while the regular buses (rusty textures because low level areas ?) would gather the passengers in the "old fashion way", by ground, to reach the 0 level factories. If the cars and buses are moving at various levels, then you'd need "bus stops" appended in mid air, or even suspended, to catch correspondances. OK, OK, I stop here.