| Posted by mmi16 on December 18, 2022 | |
After a 51+ year career, I have never heard of such a signal arrangement - TWC or any other form of control rules.
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From an old NS timetable covering the Frankfort District: Aluminum boxes are installed at CSXT crossing. At the CSXT crossing, the push buttons are labeled NS (Frankfort District), and CSXT. The pushbuttons are only to be used if signals indicate STOP. When signals at CSXT crossing indicate PROCEED, and if the way is seen to be clear, movement may proceed over such crossing without stopping at a speed not exceeding 15 MPH. When signals at CSXT crossing indicate STOP, movement must stop. Crew member will determine if conflicting route is clear, and if clear, will operate push button. After an elapsed time of 45 seconds, signal should indicate PROCEED and movement may only proceed only after determining that no conflicting movement is approaching.
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