APTA RT-VIM-RP-006-02

This Recommended Practice provides guidance for mechanical, electrical and pneumatic coupling systems used for coupling rail transit vehicles, with manual, automatic, remote, and power-assisted mechanisms. It includes emergency release bolts, energy absorption devices, support devices, centering devices, safety locks, guides, yokes, anchorages, draft gears and safety hangers. It provides a set of useful practices that can be selected and applied during the inspection and maintenance process as the particular design warrants.