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A comment on A new way of keeping trains apart uses magnetic signals in the tracks. Parent comment

Re:A new way of keeping trains apart uses magnetic signals i... by kposehn on Saturday October 01, 2022 @02:48PM (#33048951)
To be fair, Brazil has been using GPS-based dispatching for quite a while. While I haven't investigated their implementation in-depth, almost the entirety of the long distance rail network has switched to it and no longer uses wayside signaling, preferring to track entirely via GPS.
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Re:A new way of keeping trains apart uses magnetic signals i... by flyinghamster on Saturday October 01, 2022 @09:47PM (#33051967)
Cab footage implies otherwise, at least on freight lines in the Belo Horizonte region operated by MRS Logística. [0] It's anyone's guess how long that remains the case.

[0] https://www.youtube.com/c/MichaelRSilva/videos (captions in Portuguese)

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Re:A new way of keeping trains apart uses magnetic signals i... by kposehn on Sunday October 02, 2022 @04:26PM (#33059883)
You're correct about MRS. They seem to be the last holdout on a number of lines. I believe almost the entire remaining network is on GPS now.
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