When is it appropriate to change lanes?

Changing lanes is appropriate only when it is safe and legal to do so. This means that a driver must ensure there are no vehicles or obstacles in the blind spot and that the lane change can be performed without endangering oneself or others on the road. Legal considerations include signaling before changing lanes and ensuring the lane is clear, which can help prevent accidents.

Being mindful of traffic laws and ensuring a safe environment is crucial. While other options may suggest conditions such as the presence of lane markings, they do not convey the importance of both safety and legal compliance, which are fundamental for responsible driving behaviors.