SIGNALS 101: 10 Levels of Train Signal Understanding

In this installment of the Railroad 101 series, we look at Railroad Signal Design! We go over 10 different levels of understanding of signals, focusing on the fun behind-the-scenes stuff that most folks don't get to hear about, as my current job is being a signal design engineer.

BNSF Aspect Chart: https://signals.jovet.net/rules/BNSF%20Signal%20Rules.pdf

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0:00 Intro
1:10 L1: Signal Types; History
5:14 L2: Signal Aspects & Indications
7:42 L3: Local Traffic Control
10:58 L4: Centralized Traffic Control
13:00 Recap 1-4
14:53 L5: Automatic Train Stop
17:02 L6: Track Circuits
24:04 L7: Signal Bungalows
25:22 L8: Vitality, Signal Circuit Design
29:40 L9: Relay Logic Madness
37:03 L9: part 2: Get the green signal
42:20 Recap 5-9
46:02 L10: Microprocessor control
49:08 Outro