Axle Counters (Standard)


Type of product being suggested:
Standard
Title of product being suggested:
Axle Counters
Date of suggestion:
02/03/16
Reason for suggestion:
Requested by ASA
Sponsored by RISSB Standing Committee:
ISC Feb 2017
Scope:
While some aspects of this topic are already covered in existing train detection standards, it is beneficial to have a standard that specifically covers the following:

  • Form, fit and function
  • environment
  • safety integrity
  • applications for varying levels of required integrity
  • wheel versus flange detection
  • operation and maintenance phases to include:
    • reset procedures;
    • management of broken rails
Hazard identification:
1
9.12 Train detection failure (Design)
2
9.25 Train detection failure (Construction)
3
9.34 Train detection failure (Test and commission)
4
9.44 Train detection failure (Operations)
5
9.54 Train detection failure (Maintenance)
6
9.64 Train detection failure (De-commission)

Benefits:

Safety risk
Detect rolling stock to maintain separation between trains
Standardisation of equipment, installation and maintenance controls risks associated with staff moving between organisations
Interoperability / harmonisation
This standard would achieve national harmonisation i.e. all railways would be able to adopt and apply it.
It would enable Contractors to work in different jurisdictions without navigating different/conflicting requirements
The interoperability/harmonisation benefits are aligned with the Industry’s Safety strategy
Financial
Axle counters should be cheaper and easier to install over existing track circuits, and come with in-built condition monitoring
Not relying on the electrical characteristics wheel-rail interface to detect trains (like with track circuits)
Economies of scale producing better pricing