ARRM is an objective, quantitative tool that provides the railway with a deep, robust and comprehensive picture of safety risk. It is used to inform:

    • Investment decisions by both government/s and rail companies
    • Safety cases
    • RISSB’s work program of Australian Standards, Codes of Practice, Guidelines and Rules
    • Research
    • Cross-industry collaboration.

For participating rail companies, ARRM provides organisationally specific risk information that users can interrogate in multiple ways (through a simple and user friendly interface) to produce a wide range of reports. It provides the ability to benchmark your levels of risk against anonymised aggregated risk information from other similar rail organisations. ARRM’s risk information can help to identify areas for improvement, support safety initiatives, and/or be presented to the Executive to feed into decision making.

Industry Take-up of ARRM

Since its launch in November 2017, ARRM has processed 154,596 occurrence records in support of 70,000 individual risk estimates – generated via more than 2,000 simulations with around 100 million sample points.  The finished product now models safety risk across 104 different hazardous events, each one interrogatable at multiple levels allowing users to drill down into individual precursors to understand the major contributors to those hazardous events all through a user-friendly front end. ARRM is now being used by over 200 users from more than 30 organisations.

If you want to know more, including how you can become part of ARRM, please contact RISSB. If you are already participating in ARRM please go directly to

There is a ‘help’ facility on that page, and tutorial videos as well as a ‘Feedback’ area where issues and improvement requests can be recorded.