Kernrechtsfrage
Whether the collision constituted a light or medium traffic offence under the Swiss Road Traffic Act.
Extrahierter Entscheid
The conduct was not a light offence because the danger to others was no longer minor; it qualified as a medium offence.
Extrahierte Begründung
The danger created by a heavy truck rear-ending a vehicle in front, near a pedestrian crossing, was concrete and at least abstractly significant for other road users. Under Art. 16a SVG, minor danger and slight fault must both be present; here the danger threshold failed.