Those are all large airport towers. I imagine most of those are well outside the budget where this design will be used. This new design would be compared agains

Those are all large airport towers. I imagine most of those are well outside the budget where this design will be used. This new design would be compared against stuff like this. https://duckduckgo.com/?q=small+air+traffic+control+tower&iax=images&ia=images https://duckduckgo.com/?q=small+air+traffic+control+tower&ia...