NR TWI 3P039
How to Manage Rails in Tunnels
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| Organization: | NR |
| Publication Date: | 1 March 2005 |
| Status: | active |
| Page Count: | 3 |
scope:
Introduction
This Track Work Instruction covers managing rails in tunnels.
See also separate instructions:
TWI 2G047 How to measure rail depth
TWI 3G114 How to determine the minimum permissible rail depth
TWI 3P038 How to manage rail weight
Document History
NR TWI 3P039
March 1, 2005
How to Manage Rails in Tunnels
Introduction
This Track Work Instruction covers managing rails in tunnels.
See also separate instructions:
TWI 2G047 How to measure rail depth
TWI 3G114 How to determine the minimum permissible...