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by thisrod
1686 days ago
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People say that the Melbourne city loop was the world's first computerized train line. If that's true, this hardware and software had some serious heritage value. It's a pity that Museums Victoria didn't try harder to preserve it when these replacements were made. |
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I don't believe that is true. The Melbourne city loop was using the Ericsson JZA 715 system. According to page 9 of [0], Melbourne's implementation of JZA 715 went live in 1982, but Oslo's JZA 715 implementation went live in 1979. Furthermore, JZA 715 was an evolution of earlier Ericsson computer-based rail traffic control systems, going back to the JZA 410 which went live in Stockholm in 1971 and Copenhagen in 1972. So, if these Ericsson systems were in any sense a "world-first" (don't know enough about the history of this technology to say), it looks like the "world-first" happened in Scandinavia, and Melbourne may have simply been "Australia-first" (or "Southern Hemisphere-first" or maybe even "not-Scandinavia-first")
[0] https://www.jonroma.net/media/signaling/articles/ericsson/L....