Answer;
Rope descent system
A rope descent system is defined as a suspension system that allows a worker to descend in a controlled manner and, as needed, to stop at any point to perform work.
Step-by-step explanation;
-Rope Descent Systems is an intensive three-day (24 hour) program intended for any workers who are expected to work on the roofs of tall buildings and descend over the side to conduct work.
-Rope Descent Systems consists of components that when assembled, allow a worker to move along the length of that rope for a number of different purposes. The rope descent system is used in accordance with instructions, warnings, and design limitations set by the manufacturer or under the direction of a qualified person.