NR/L2/TRK/2500 ISSUE 2
Technical Approval in the Design of Track Infrastructure (aka NR/SP/TRK/02203)
Organization: | NR |
Publication Date: | 26 August 2008 |
Status: | inactive |
Page Count: | 51 |
scope:
This Procedure applies to the Design of all new, upgraded, or renewed Permanent Way Infrastructure owned or to be owned by Network Rail including:
• new or revised designs of switch and crossings;
• new or revised alignment designs for plain line;
• like for like design (not maintenance - see NR/L2/TRK/001) for switch and crossings;
• like for like design (not maintenance - see NR/L2/TRK/001) for plain line.
This procedure does not:
• apply to components and systems - see RT/LS/P/029;
• apply to routine Permanent Way maintenance provided no significant vertical and horizontal realignment is required (see NR/L2/TRK/001) and no alteration is made to signalling controls;
• fulfil the procedures for obtaining approvals from other Network Rail engineering disciplines in respect of structures, signalling, telecommunications, electrification, lighting or other operational electrical or mechanical equipment, or reduced electrical clearances approval;
• fulfil the procedures for obtaining approvals for 'direct fastening bridges' construction - covered by RT/CE/S/003 (other than the track system).
Purpose
This document is to define the required controlled processes to control the risk to Network Rail's infrastructure and railway operations that may arise due to the activities associated with the Design of Permanent Way (track systems, geometry and component configuration using approved products) by defining procedures to be followed to:
• identify interfaces issues with other engineering disciplines;
• obtain approval/acceptance by Network Rail of the Design;
• provide Design and Design Check certification;
• obtain Network Rail approval for the use of 'Exceptional Design Values', 'Enhanced Permissible Speeds' and 'Reduced & Special Reduced Clearances';
• control and approve the use of non-approved track systems and components, first of type and novel solutions;
• identify any non-compliance to standards.
Document History


