ConPit Junction and the "C" light
Here is some information about
the "C" light that is on the PRR position light signals at ConPit
Jct. Thanks to a web site visitor, Bob Carbaugh, for this
information.
"...While searching the list, saw a photo of westward home signals
(5/16/99) at Conpit, with a question about the "C" light. These were to
allow trains to operate over the Conemaugh Line, between Conpit and
Kiski at track speed limits between interlockings, with non-functional
cab signals. Between these two points trains were run on signal
indication of cab signals - with NO automatic WAYSIDE signals...the
only signals were at interlockings. The "C" was lunar white and
indicated "Clear to Next Interlocking", indicating, effectively, "Clear
Block"- permission to run at track speed (I believe up to 40mph?), and
approach the next interlocking prepared to stop. At the next CP, if you
had any type of "Clear" signal AND the "C" light, you could continue.
If the signal was other than a Clear aspect OR the Dispatcher was
unable to display the "C" light, one would (if permitted) continue at
"Restricted" speed to the next interlocking....
If I remember correctly, the Conemaugh Line between Kiski and Conpit
(~50 miles) was one of ...such signaled areas (Automatic Block
Signal Rules - Cab Signal Only - NO Wayside Signals). To other than
those who (like me) had to operate over this district, this would be
peripheral or arcane knowledge. The fellows who were imported to help
during the NS takeover were astounded by the Cab Signals in their
normal (with wayside signals), and stupefied at their function without
any signal indicators outside the cab for several miles between Control
Points.... Bob C.
"
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