This is a very innovative decision regarding aviation : an administrative court in Austria forbids the construction of the 3rd runway at Vienna airport; the negative environmental impact is by far more important that the positive impact of a new runway.
No doubt we will have to wait for the appeal court decision.
Residents in the vicinity of airports claim that an environmental valuation must be made before any construction of a new airport or before the expansion of an existing airport. This seems to have been made here by the Austrian court.
See various articles on the subject :
The Local 10/02/2017