Various embodiments are directed to shuttle apparatuses for fall protection and methods of using the same. In various embodiments, a shuttle apparatus comprises a shuttle housing configured for dynamic engagement relative to a guide member, a first brake assembly configured for activation during a fall instance, and a secondary brake assembly configured independent from the first brake assembly, the secondary brake assembly comprising: a secondary brake pawl configured to pivotably rotate between a disengaged position and an activated position, the secondary brake pawl configured to rotate toward the activated position during the fall instance; and a secondary brake lock arm configured to freely rotate independent of the shuttle housing such that the shuttle housing being arranged in an angled configuration causes the secondary brake lock arm to rotate to an engaged position to obstruct the secondary brake pawl from rotating, thereby preventing the secondary brake assembly from being activated.

Methods, systems, assemblies, and/or the like are provided. According to various embodiments, there is provided a rail system including a vertical rail aligned vertically and including a vertical track; a changeover rail comprising a first portion, second portion, and a changeover track, wherein the first portion is configured to operably connect to the vertical rail, wherein the second portion is configured to be fixedly connected to a post, wherein the changeover track is disposed along the first and second portions, wherein the vertical track and the changeover track are configured to be aligned to form a track configured to receive a shuttle assembly configured to travel along the track; and a changeover mechanism configured to operably attach the vertical rail and the changeover rail.