[Bombardier]

It could actually be a combination of both. A wind tunnel study would not, on its own, dictate that a building could or could not be built. However, this area has very strong winds (which is why Essex has such large shear walls). They may have found out that the wind study required them to add shear walls or a damper (or both) and the job no longer made sense financially considering a market slow down. Most ways to address high winds require added cost and loss of usable square footage which could make the job unfeasible.