by dyardmaster1
The signal shown is located on the Strasburg Railroad. It is connected to the points of the spring switch for the passing siding and indicates whether the switch is lined normal or reversed. Even though it is a tourist line, the Strasburg RR is a common carrier and must abide by PUC and FRA regulations, so the signal is NOT for cosmetic purposes.
And for those of you not familiar with the picture, it is at the west end of the Straburg Railroad's passing siding.
You will find similar signals on CSXT's former P&LE Monongahela division. The passing sidings are protected with distant signals that show 'green' when the switch is lined normal, and 'yellow' when it is reversed and lined for the siding. It has nothing to do with block occupancy.
And for those of you not familiar with the picture, it is at the west end of the Straburg Railroad's passing siding.
You will find similar signals on CSXT's former P&LE Monongahela division. The passing sidings are protected with distant signals that show 'green' when the switch is lined normal, and 'yellow' when it is reversed and lined for the siding. It has nothing to do with block occupancy.