What does the term "clear zone" refer to in highway safety?

The term "clear zone" refers to the area beside the road that is free of obstacles. This zone is crucial for highway safety as it provides a buffer space that can help reduce the severity of accidents. It is designed to allow for recovery in the event that a vehicle leaves the roadway, giving drivers a greater chance to regain control if they find themselves in a hazardous situation. This area needs to be free from fixed objects, such as trees, utility poles, or other hazards, which could cause injury or damage during an unintentional departure from the road. By maintaining a clear zone, highway design aims to enhance the safety of all roadway users by minimizing potential risks.