escape chute
tube installed near the top of a tall structure for use as a means of emergency evacuation where a conventional fire escape is impractical
en-US/ɪsˈkeɪp ˈʃut/
en-GB/ɪˈskeɪp ˈʃuːt/
tube installed near the top of a tall structure for use as a means of emergency evacuation where a conventional fire escape is impractical