Double cord safety net is made to deflect and absorb the energy of a fall, which lowers the risk of an individual being hurt. The area beneath the net must be sufficiently open so that if the net deflects, the person falling won't run into anything or the ground. As closely as possible beneath the surface that personnel are working on, but no more than 30 feet below, safety nets must be erected. The potential fall area must be unobstructed when nets are deployed on bridges. In cases were preventing a fall directly is not possible, double cord safety net is used to catch people.