NR TWI 3B006 ISSUE 1 PDF

Introduction

This Track Work Instruction covers the management of track that has multiple wet beds.

The instruction gives guidance on the strategies that can be followed both before and after repairs are carried out.

See also separate instructions:

TWI 2B002 How to recognise wet bed formation

TWI 2B005 How to prevent wet bed formation

TWI 2B006 How to treat wet beds

TWI 3B001 How to dispose of contaminated ballast

TWI 3B003 How to understand blanket design

TWI 4B001 How to decide on the appropriate ballast failure treatment