Question juridique clé
Whether the cantonal court violated the right to be heard by not addressing the absence of a legal basis for the temporary speed limit.
Solution extraite
No violation occurred; the court implicitly accepted the validity of the signalisation and the point had already been resolved in the related criminal case.
Motifs extraits
A court may confine itself to the essential reasons; it need not refute every argument explicitly. The earlier Federal Supreme Court judgment had already confirmed the validity of the reduced limit.