What must the area inside the self-erecting tower crane's tail swing be?

The area inside the self-erecting tower crane's tail swing must be barricaded to ensure safety. Barricading serves to prevent unauthorized access to this danger zone where the tail swing could pose a risk to personnel and equipment. This is crucial because the movement of the crane's tail can be unpredictable and can extend into areas where workers may be located, leading to potential accidents.

In a tower crane operation, maintaining clear boundaries around the crane's swing radius is essential for the safety of all workers on site. Barricades effectively communicate to everyone that the area is off-limits during operation, helping to avoid accidental entry into a hazardous zone. Other safety measures, like caution signs and ensuring the area is marked, can complement the need for barricades but do not provide the same level of physical restriction to access.