What does a roadway with a double solid line indicate?

A roadway marked with a double solid line indicates a no passing zone. This means that vehicles are not allowed to cross these lines to pass other vehicles in either direction. The presence of double solid lines serves as a clear warning to drivers that there are specific conditions in this area that make passing unsafe, such as limited visibility or the potential presence of oncoming traffic. It is crucial for driver safety to heed this indication, as attempting to pass in a no passing zone can lead to serious accidents.

In contrast, the other options suggest scenarios that are not applicable to a double solid line. For instance, passing is not allowed in either direction, so the notion that it could be permitted contradicts the purpose of the lines. Likewise, the implication of stopping only if necessary or yielding to cyclists does not align with the specific meaning conveyed by double solid lines on roadways.