Comments on: VIA 6532 is (according to my slide mount) near Dundas, Ontario on March 27, 1984.

By: hoggerdoug

hoggerdoug — Sun, 17 Mar 2024 16:13:47 +0000

Years ago, 1/2 mile or so east of Dundas station, there was a ABS signal with a “SPS” plate. I believe it was a Station Protection Signal, protection for eastward passenger trains de-training / entraining passengers at the station. The SPS plate governed westward trains. Station Protection Signal is in the “definitions” section of the old UCOR revision 1962

By: hodgsontoaylen

hodgsontoaylen — Sun, 17 Mar 2024 14:46:13 +0000

Any single or double staggered aspect without a square R (restricting) plate or round A (absolute) plate is a stop and proceed (at restricted speed) signal when displaying red. And there are a few out there. I believe Aldershot station is protected this way. Never seen a grade signal in the 20 years I’ve been working for the railway, and they are not in the CROR.

By: terry.oshell

terry.oshell — Sat, 16 Mar 2024 20:17:40 +0000

I think overall your understanding was correct.

By: Aitch

Aitch — Sat, 16 Mar 2024 18:46:12 +0000

Thanks again for the details Terry. I guess I misunderstood the rules. It’s a fascinating subject.

By: terry.oshell

terry.oshell — Sat, 16 Mar 2024 17:19:59 +0000

Signal 300 Mile 30.0 Halton Sub. A good example of where the “R” Marker would provide for improves train handling.

http://www.railpictures.ca/?attachment_id=21714

By: terry.oshell

terry.oshell — Sat, 16 Mar 2024 17:15:16 +0000

Aitch – During my working days I don’t recall seeing any signals designed to display “Stop and Proceed at Restricted Speed” without an “R” Marker attached to the signal mast. Not to say there are not any out there. The addition of the “R” Marker provided a great improvement to train handling and operational efficiency without compromising safety.

By: Aitch

Aitch — Sat, 16 Mar 2024 03:08:32 +0000

Terry, that’s a very interesting change. It sounds like the R marker effectively makes tonnage a non issue in order to proceed at restricted speed. If most signals capable of displaying a stop and proceed indication get the R marker then when would a train ever actually have to stop and then proceed rather than passing at restricted speed ?

By: Eric May

Eric May — Sat, 16 Mar 2024 00:44:28 +0000

6532 has one roof mounted strobe light remaining. Did they ever get used in the VIA days?

By: terry.oshell

terry.oshell — Sat, 16 Mar 2024 00:10:03 +0000

The “Grade Signals” days are number though. The “G” Marker will soon be removed and retired, superseded with the attachment of an “R” Marker to the signal mast, upgrading the indication of a “Stop and Proceed Signal” to a “Restricting Signal”. “R” Markers would become standard attachments on most signals capable of displaying “Stop and Proceed” indication.

By: Aitch

Aitch — Fri, 15 Mar 2024 02:37:38 +0000

Thanks very much Terry. I knew you’d have the details. I’d forgotten how tonnage figured into the rule.