Each of a pair of barrier platforms is carried by a pair of carrier stanchions, one disposed to each opposite side of a loading bay in a warehouse environment for a flatbed trailer carrying pallets that must be loaded and unloaded by forklift trucks. Each pair of carrier stanchions also supports a motor that can be operated to raise and to lower, as desired, one of the pair of barrier platforms that in the lowered position provides fall protection for the forklift trucks that service the flatbed trailer. Each barrier platform includes a forklift rub rail and carriages that are configured to cooperate with the carrier stanchions to resiliently absorb impacts from collisions with the forklift.