Rappelling involves descending vertical surfaces using a harness and rope system, allowing construction professionals to carry out tasks on buildings, bridges, and other structures that may be difficult to reach using traditional scaffolding. Rappelling is particularly beneficial in situations where space is limited or when working on tall structures, as it minimizes downtime and helps maintain the flow of construction projects. Safety is paramount, and workers must be trained in proper rigging techniques and equipment use, ensuring a secure and controlled descent while performing their duties.