The island of B&O CPL signaling in the Akron, OH area is shrinking rapidly as the iconic downtown double-double CPLs have some unwanted interlopers. I also saw that the interlocking at the west end of the double track south of town also has new signals up and I would suspect that the interlocking complex at Warwick, OH is not far behind.
The former B&O main line route between New Castle, PA and Willard has always been a bit of an odd duck with a distinct lack of investment. This was a boon to the signaling community as this preserved large swaths of Rule 251, B&O CPLs and even the interlocking tower in Newton Falls, OH. Unfortunately it appears that this will become as bland as the rest of the B&O Main Line because, if my calculation are correct, this is the last bit of B&O signaling left.
A blog devoted to explaining the ins and outs of North American railroad signaling, past, present and future. This blog seeks to preserve through photo documentation the great diversity and technical ingenuity of 20th century signaling and interlocking hardware and technology. Related topics cover interlocking towers and railroad communications infrastructure.
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Your calculations are correct...
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