scope:

This American National Standard was sponsored by the Monorail Manufacturers Association, Inc. in the interest of improved uniformity of underhung crane and monorail performance and enhanced public safety. This standard, provides guidance regarding design practices and performance testing criteria for underhung cranes whose end trucks operate on the internal flange of a runway using enclosed track section; and to trolleys (carriers) operating on single-track monorail systems, including all curves, switches, transfer devices, lift and drop sections, and associated equipment.