I only pipe up on here when something stadium related comes up. The design changes would have needed to be done, the post regarding cost of engineering bespoke trusses for the roof design will more than likely be a part of it.
They’ve been testing our stadium in wind tunnels for a while now, they’ll also be looking at general mechanical ventilation, wind effects on facade and structure, aerodynamic design for sports events and most importantly pedestrian comfort and safety.
The latter part of that is more than likely the reason why the car park has gone. The risk of current fuels close to a capacity stadium with the addition of wind being on a dock for fires to spread and potentially in future battery fuel cells going up in a cramped environment causing a risk to fans.
There is potentially the addition of winds battering the local area causing damage to the stadium. If the models they’re testing lift at any point during the tests in 110/130mph wind then the risk of having a high roof is far too great to press ahead with the plans. If you’re asking why it wasn’t so much of a problem for Spurs stadium then it’s a built up area far inland, not exposed to the elements as much.
Have faith, the stadium is going ahead, let them tweak to satisfy all design experts and local trusts and they’ll get the projects underway.