What must you anticipate with this road sign?

This road sign is a warning sign indicating that you must anticipate cyclists who may cross or enter the carriageway ahead. It warns drivers to be cautious of potential bicycle traffic crossing the road, not to expect a bike path or underpass, nor a prohibition for cyclists.

In German traffic rules, triangular signs with a red border usually warn of potential hazards. The bicycle symbol inside means you should be vigilant and reduce speed if necessary, ready to yield or stop for crossing cyclists. This helps prevent accidents and ensures safe coexistence between motor vehicles and cyclists.