http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Standard ANSI/ASCE/T&DI 21-21 establishes the minimum requirements necessary to achieve an acceptable level of safety and performance for an automated people mover (APM) system.
Includes bibliographical references (pages 77-78) and index.