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Fri Oct 27 11:52:41 EDT 2017
Just a little clarification on what can be a confusing subject. Eric is correct on the dates the Position Light Signals (PLS) were installed on the Cincinnati District- these replaced the semaphore signals. The Color Position Light Signals (CPL) were modified (as Ed mentioned) from the PLS signals that were mostly already installed. The conversion to CPL’s was done on the Cincinnati District in 1960 at a cost of $10,000. Many would say (although I don’t know if it was ever proven) that this was a direct result of the tragic and deadly collision of two N&W freight trains at Sardinia, Ohio in April 1958. Harry is also correct that the track charts (the older the better) provide an invaluable amount of information on any section of the N&W one might be researching.
From: NW-Mailing-List [mailto:nw-mailing-list-bounces at nwhs.org] On Behalf Of NW Mailing List
Sent: Thursday, October 26, 2017 11:13 AM
To: NW Mailing List
Subject: Re: Cincinnati District
The Cincinnati District was CTC’ed in 1948 and was equipped with position lights at that time. It had been ABS. ABS was installed in 1926.
A complete article can be found in the December 1948 volume of Railway Signaling.
On Oct 26, 2017, at 09:57, NW Mailing List via NW-Mailing-List <nw-mailing-list at nwhs.org<mailto:nw-mailing-list at nwhs.org>> wrote:
From memory, CPLs came on line in the late 1960s. You might find a
Scioto Division track chart of interest. Among many other items (weight of
rail, degree of curvature, elevations), the signals are shown including
number of heads and whether it is capable of displaying a STOP indication.
The track chart does NOT identify the signal by number.
. For example, a 1984 track chart shows that there
were signals located timetable west of McDermott Road at Rushtown
governing traffic in both directions. Each signal had a single target
and weren't capable of displaying a STOP indication.
The archives has older track charts than my 1984 edition. It takes
seventeen 8 1/2" X 10" pages to cover the Cincinnati District. Copies
are $0.25 each page. Harry Bundy
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