The traffic sign you mentioned, "Note by verbal indication 1012-31," indicates that drivers should pay attention to verbal instructions that may be provided in that area. This sign is often used in conjunction with situations where traffic regulations or directions are given verbally, such as by traffic wardens, police officers, or during events where standard road signs may not be applicable.

It's essential for drivers to be attentive and respond appropriately to these verbal indications, as they can provide critical information about the road conditions or specific instructions relevant to that location.

If you have any more questions or need further clarification regarding German traffic rules or other signs, feel free to ask!