Under what condition are you allowed to cross over double yellow lines?

Crossing over double yellow lines is generally restricted to maintain safety and prevent dangerous maneuvers. However, one condition where it is permissible is when you need to avoid an obstruction that is directly in your path. This aligns with the principle of prioritizing safety while allowing for necessary adjustments during driving. For example, if there is a fallen branch or an unexpected blockage, you may cross the double yellow lines to navigate around the obstruction safely.

The other scenarios, such as overtaking another vehicle or stopping for a tram, do not allow for crossing double yellow lines as these actions could lead to hazardous situations. Similarly, making a U-turn is typically not permitted where double yellow lines are present, as these lines indicate a no-passing zone aimed at preventing collisions and ensuring orderly traffic flow.