scope:

This standard applies to all track in running lines, depots and sidings.

It covers the following components of track:

a) running rails;

b) check rails;

c) rail fastenings including rail pads;

d) adjustment and expansion switches;

e) switches and crossings including locked wheel ramps;

f) unbroken main line crossings;

g) track support features including ballast, shingle, formation, sand blankets, geosynthetics, second-stage concrete, transition slabs and drainage systems;

h) switch fittings such as soleplates, stretcher bars and brackets and ancillary equipment such as point levers and switch heaters.

That part of the standard dealing with inspection covers the following activities:

a) routine inspections of the track;

b) inspection of the track following a period out of use or when regular inspections have been suspended;

c) inspection following work on or near the line, to assure that the completed works and maintenance tolerances in standard 1-159 are achieved and that the track is safe for its permitted use;

d) inspection following exposure to conditions or events that could affect the safety of the line;

e) inspection of temporary works;

f) inspection of certain off-track features including structures and fencing, to the extent that this activity is the responsibility of the Track discipline (in some cases this is by reference to other relevant standards).

The standard does not cover the requirements associated with the performance and design of track, which are the subject of standard 1-157. 

The standard shall be read in conjunction with standards 1-162, 1-163 and 1-164 in respect of conductor rails and associated components.

Where it is mandatory that any of the supporting information in Sections 5 or 7 of this standard is to be applied, the appropriate requirement is set in Section 3.

This issue of the standard replaces 1-158 A5.

Purpose

The purpose of this standard is to define the requirements for the inspection and maintenance of the track system.