However, much to my continued puzzlement, the northbound home signal at CP EQUILATERAL like the southbound CP TAMAQUA home signal is a triple head 9 light wired unit capable of displaying all NORAC aspects. Can’t understand the need for these triples deployment per requirements for right now. Tamaqua end is somewhat understandable with a single slow speed 15 mph switch into either the yard or dark territory branch for R/R/G or R/R/Y aspect but why the real need for the middle head then when R/Y would do? Similarly, Equilateral end is a medium speed Y switch for dual main routing only so why the need for a 3 light lower head. R/G/R or R/R/Y should suffice. Currently, doesn’t make sense. Also, at Equilateral, the southbound home signal adjacent to the now passing track is a dual head mast signal and old main track 1 gets the dwarf application. This arrangement suggests track 2 will soon be employed as the new southbound main at some point but there is no new interlocking at either MBS MIDDLE YARD or MBS LOWER YARD to automatically get trains from the single main track 1 onto track 2 as a routine passing siding application. I just can’t imagine this will continue to be a manual operation with ongoing track upgrade work and those additional heads. The only scenario that makes sense for these deployments is an additional new interlocking for MIDDLE YARD or LOWER YARD. Then, Tamaqua and Equilateral can display various appropriate approach aspects using all 3 heads like Y/R/G. We shall see.
It will be interesting to see how the Port Clinton complex just to the south gets treated and signaled. Andy Muller had those old black multi track truss signal bridges put in place bounding the old RDG Port Clinton Interlocking when they were building out he complex. But, more complex trackage has since been added. Just the single diversionary route switch between the Tamaqua and Pottsville Branches is currently powered and controlled from within the PC Tower Office. But, is not governed by any signaling to date. Also, wondering if they employ the same treatment shortly before MP 77 where MBS KERNS begins the northbound double track into Port Clinton YL. So, this will all be interesting to follow as well.
Thanks again to Bill for all these great updates. I'm sure I'll make it out there myself one of these days. However unlike most signaling emergencies, this one is only going to get better, instead of worse :-)