Safe commercial ziplines typically use passive zipline brakes; the rider doesn’t have to intervene in the braking process. Active zipline brakes however, imply that rider has to be active in the braking process such as dragging a gloved hand on the cable.
Passive zipline brakes are:
Your choice of zipline brake design depends on many factors: expected landing speed, available braking and buffer zone lengths, type of trolley and budget.
We can usually plan for a zipline brake design at the earliest stage of consulting but it is only after we visit the site and discuss the different options with the client that we can confirm the design and start planning for it.