https://interlockings.blogspot.com/2022/01/the-railway-museum-at-letschin-im_19.html
Of Interlockings And Other Machines ...: The railway museum at Letschin im Oderbruch, 2020 - a tour...
Deutsche Version dieses Postings Here is the next posting from Letschin, with pictures by Robert Herzog. We will see a number of mechanica...
https://industrialscenery.blogspot.com/2020/05/tod-averepublicmccook-avekennedy-ave.html
Industrial History: Tod Ave+Republic+McCook Ave+Kennedy Ave Interlockings: B&OCT vs. IHB
The railfan post below got me looking for the "Republic interlocking" in East Chicago. My 2005 SPV Map shows that there were four interlocki...
industrial history
https://interlockings.blogspot.com/2024/08/cow-creek-canyon-and-southern-pacific.html
Of Interlockings And Other Machines ...: Cow Creek Canyon and Southern Pacific Semaphores at...
Deutsche Version dieses Postings Update 7.9.2024 : On Youtube , "Eriks Gar." shows his restauration of one of these signals; and how they ...
and other
https://openresearch.surrey.ac.uk/esploro/outputs/book/On-Modelling-and-Verifying-Railway-Interlockings/99513464802346
On Modelling and Verifying Railway Interlockings: Tracking Train Lengths - University of Surrey
The safety analysis of interlocking railway systems involves verifying freedom from collision, derailment and run-through (that is, trains rolling over...
https://tc.canada.ca/en/rail-transportation/rules/2022-2023/canadian-rail-operating-rules/track-work-track-units-railway-crossings-grade-drawbridges-interlockings-non-interlockings
Track Work and Track Units at Railway Crossings at Grade, Drawbridges, Interlockings and...
This document is the Canadian Rail Operating Rules which is in effect on February 26th, 2008.
track workrailway crossingsunitsgradedrawbridges