Key legal question
Whether the cantonal court violated the right to be heard by not expressly addressing the objection that the reserve zone was contrary to federal law.
Extracted holding
No violation: the reasoning of the judgment as a whole made clear that the reserve zone was considered compatible with federal planning law.
Extracted reasoning
An explicit answer is unnecessary if the court's position can be clearly inferred from the decision as a whole; the federal court had repeatedly accepted reserve zones so long as they do not upset the federal allocation of land-use zones.