When is ALARP ALARP?
The UK rail industry recently implemented the Inter-Operability Directive for the Trans European Networks. As part of this process the HSE advised that a network system can be considered “Broadly Acceptable” and hence the associated risk is ALARP if it is shown to be compliant with the relevant Technical Specifications of Interoperability (TSI). The straight-forward implication of this HSE guidance would appear to be that compliance with the TSIs is sufficient to demonstrate that risks are ALARP. But that seemingly contradicts the HSE generic advice that states ALARP must still be demonstrated, even if there is compliance with standards or best practice.