IoTT's video: ABS APB CTC Signaling for Model Railroaders Video 21

In Video I talked about some fundamental concepts when it comes to train movements and signaling. In a nutshell, safety is achieved by separation of movement authorization and movement execution. The goal is to make sure that only one train can be at the same time in any given section of the route network. Of course, these safety measures to properly separate trains have their toll when it comes to track throughput and efficiency. So, today we are going to discuss methods developed over the years by the railroad industry to increase efficiency while maintaining traffic safety. Additional Resources: Railroad 101: https://www.youtube.com/playlist?list=PLKPqdbqJjSlVTihdBRiJar4R927fhvdK2 BNSF CTC: https://www.youtube.com/watch?v=MpCsAQuWaH8 BNSF PTC: https://www.youtube.com/watch?v=7fDRazEWAKU Signaling Basics: http://www.lundsten.dk/us_signaling/signalbasics/ Norfolk Southern: Communication and Signals now and then: https://www.youtube.com/watch?v=3Sow8O1_ZNA PTC: A merger of technology and human ingenuity at NS and across the industry: https://www.youtube.com/watch?v=dOOQZ01R1Sc ETCS: https://www.thalesgroup.com/en/european-train-control-system-etcs ETCS Levels: https://www.youtube.com/watch?v=TNVv_3mJl_Y How CBTC works: https://www.youtube.com/watch?v=nUryDs0x7KY How does moving-block CBCT work? https://www.youtube.com/watch?v=cJrlsaoQBy4 12/2018 PTC Implementation Status: https://www.transportation.gov/briefing-room/statement-positive-train-control-implementation PTC Overview and Policy Issues: https://fas.org/sgp/crs/misc/R42637.pdf ATCS Monitor Yahoo Group: https://groups.yahoo.com/neo/groups/ATCS_Monitor/info Layout Videos used as background are from the excellent: Hendersonville, NC Train Depot https://www.avmrc.com/