What can red-white warning plates on vehicles indicate?

The red-white warning plates on vehicles are important indicators in traffic management. They serve specific purposes as outlined in German traffic regulations.

1. A trailer parked on the roadway within a built-up area: This indicates that there is a trailer that might obstruct the road and requires caution. The color combination alerts other road users to potential hazards.

2. A vehicle with excessive width: This signifies that the vehicle is wider than standard, which could pose a risk to other vehicles and requires extra caution.

These two cases are relevant because they help inform drivers about the specific situations they may encounter, enhancing safety on the roads. The regulation regarding warning plates aims to reduce accidents and ensure that drivers are aware of unusual vehicles on the road.

The third option, a vehicle transporting dangerous goods, is not indicated by these warning plates. Such vehicles typically use different specific warnings or markings to communicate the nature of the goods they carry. Understanding these distinctions helps in ensuring proper precautions are taken based on the situation.