This whole thing strikes me as an Architectural student project. After looking at this a little closer with a learned colleague, there's loads wrong with it and it just wouldn't work, or pass planning/safety certificates. For a small example, the highest recommended rake on a tier is 37.5°. The ones at the top there seem to be more like 60°. Also, recommendations state that there should be equal square meterage for the concourse as there is for the seating is serves so as to maintain the density at full capacity, not allowing for concourse refreshment stalls etc. It looks to me on that image that no concourse at all has been allowed for the upper tiers, so you'd have to go downstairs to what will be a HUGE ground floor concourse. Outside of all this, you have to also consider the view. That upper tier will be akin to looking out of a 12 story window of an office block. The people with a window seat would be able to see the pitch, maybe not the 1st meter of it, but certainly most of it, however the person behind them would see all but about the first 5m, then the person behind that all but the first 12, you can see where I'm going with this.
This whole stadium idea is a non-starter.
