Questão jurídica principal
Whether the conduct constituted gross traffic-rule violation under Art. 90(2) SVG rather than simple violation under Art. 90(1) SVG.
Decisão extraída
The conviction for gross traffic-rule violation was upheld; the conduct was objectively and subjectively serious enough to meet Art. 90(2) SVG.
Fundamentação extraída
The accused materially breached the duty to adapt speed to traffic conditions by braking sharply on an Autobahn without compelling reason, thereby seriously endangering traffic. Subjectively, the court found at least gross negligence and recklessness: he knew, as a trained mechanic, that the maneuver was dangerous, and the claimed confusion did not amount to a legally relevant mitigating circumstance.