[Accrs-o] Interesting article on interlocks.

[ACCRS O Scale list]

https://blog.metrolinx.com/2019/11/13/time-in-a-box-union-station-prepares-to-retire-a-vast-interlocking-system-thats-guided-every-train-in-and-out-of-toronto-for-almost-90-years/

Phil Edholm
Mobile 408-832-5618

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mail.accrs.org/archives/accrs-o/attachments/20200709/064a7739/attachment.html>