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I don't think that's true. Ericsson used it at one point. What makes you think every single train in the "Western world" uses it as well?
by tree_of_item 9y ago
I don't think that's true. Ericsson used it at one point. What makes you think every single train in the "Western world" uses it as well?
- mmjaa 9y agoI've worked extensively on these systems as a developer. ;) Siemens, Thales, Ericsson, Samsung - all have shipped SIL-4 systems based around the Actor/Voting model in the past, because it is an industrial standard. These systems are still out there, in some cases 20+ years later, in track-side systems as well as operations.