NR NR/L2/TRK/001/D01 ISSUE 4 PDF

This module of NR/L2/TRK/001 specifies requirements for the detailed inspection and maintenance of switches and crossings.

Additional general requirements for the inspection and maintenance of permanent way are specified in NR/L2/TRK/001/A01.

Additional requirements specific to continuous welded rail (CWR) are specified in NR/L2/TRK/3011.

Unless otherwise stated, the specification applies to all running lines and sidings open to traffic. Particular requirements at leased depots are specified in RT/CE/S/037.

This module applies to permanent way that is undergoing renewal, or is in a temporary condition in connection with other works, as well as to permanent way which is in normal maintenance. In these cases, the principal objective of inspection is to manage risk imported by the works concerned (e.g. temporary rail joints, unconsolidated ballast and unstressed CWR). The specific responsibilities and scope are detailed in the Asset Management Plan (AMP) for the project.

Purpose

NR/L2/TRK/001 is a system specification that gives the minimum requirements for the inspection and maintenance of Network Rail's permanent way.

NR/L2/TRK/001 has been divided into five modules and incorporates all the relevant Letters of Instruction, which are now withdrawn. It has been extensively revised. It incorporates clause 15 of NR/L3/TRK/001 Issue 3.

It also incorporates Letters of Instruction NR/L2/LI/049, NR/L2/LI/067 Version 2, NR/L2/LI/112.