Key legal question
Whether the federal appeal was admissible against the cantonal remand decision under Art. 93 BGG.
Extracted holding
The decision was an interlocutory remand order; no irreparable harm was shown and the conditions for immediate review to save significant time or costs were not met.
Extracted reasoning
The remand did not end the proceedings, and any disadvantage could still be reviewed after the final cantonal decision. The further examination concerned only possible operating restrictions and noise limits, for which the file already contained a noise forecast and draft operating rules, so no extensive evidence-taking was foreseeable.