What is the primary purpose of using a safety reel in a blocked exit scenario?

In a blocked exit scenario, the primary purpose of using a safety reel is to provide a reference point for exit. When divers are in an environment where visibility is limited or paths may be obstructed, having a safety reel allows them to maintain a clear line back to the exit. The reel can be unwound as divers navigate through the environment, ensuring they can trace their route back to safety. This becomes crucial in situations where an exit may be compromised or difficult to locate, as it minimizes the risk of disorientation and enhances safety during ascent and exit.

While enhancing visibility, preventing equipment separation, and marking an emergency exit are important safety considerations in diving, the specific function of the safety reel in this context focuses on guiding divers back to the exit by providing a tactile reference they can follow, even under low-visibility conditions.