NR/L2/TRK/001/MOD12 ISSUE 6
Inspection & Maintenance of Permanent Way: Track Geometry - Maintenance Design Requirements
Organization: | NR |
Publication Date: | 1 December 2012 |
Status: | inactive |
Page Count: | 11 |
scope:
This module of NR/L2/TRK/001 covers:
a) geometry design tolerances;
b) track position maintenance tolerances and intervention limits;
c) Absolute Track Geometry (ATG);
d) use of Local designs;
e) maintenance by on-track machines (OTM), including:
• measurement and compensation;
• design over-lift systems;
• maintenance of S&C;
f) loading on structures;
g) on-site geometry marking;
h) details of geometry records to be kept.