scope:

The scope of this document is:

- to establish a working terminology for crossings with moveable parts, which means crossings with moveable parts to close the gap of the running edge, and their constituent parts, and identify the main types;

- to list the minimum requirements for the manufacture of crossings with moveable parts and/or their constituent parts;

- to formulate codes of practice for factory inspection and tolerances for crossings with moveable parts and/or their constituent parts;

- to establish the limits and extent of supply;

- to list the method by which crossings with moveable parts and their constructional parts should be identified;

- to list the different and varying ways by which crossings with moveable parts can be described, using the following parameters:

- geometry of crossings;

- types of construction;

- performance requirements;

- design criteria;

- tolerances and inspection.