Comments on: Toronto – Hamilton – London train 77 passes through Bayview Junction. Scan and editing by Jacob Patterson.

By: Aitch

Aitch — Thu, 27 Nov 2025 19:02:53 +0000

Thanks for the explanation !

By: terry.oshell

terry.oshell — Thu, 27 Nov 2025 18:07:48 +0000

Correct.

Interlockings within ABS at CN were typically designed with a “High Signal” governing movements with the current of traffic (directional running) and a “Dwarf Signal” for movements running against the current of traffic. UCOR Rule 673 governed movements moving against the current of traffic approaching Interlocking Limits.

Bayview Interlocking is being upgraded as part of the CTC between Hamilton and Burlington and will be In Service in less than a year. The additional indications required for CTC necessitated the replacement of the Dwarf Signal with a two head high signal governing eastward movements. In the distance a similar signal configuration can be seen for westward movements.

By: sdfourty

sdfourty — Wed, 26 Nov 2025 04:08:24 +0000

Perhaps ABS directional running: north track westbound; south eastbound, prior to CTC.
My understanding is that most London / Windsor trains served Hamilton downtown – as such the departures would be reverse moves.
sdfourty

By: Aitch

Aitch — Tue, 25 Nov 2025 18:54:44 +0000

* meant to say the dwarf signal governed the same track as the signal “without” backboards.

By: Aitch

Aitch — Tue, 25 Nov 2025 18:53:03 +0000

The signals are interesting in this photo. One set on the cantilever lack backboards. And there’s a dwarf signal under the cantilever which presumably governs the same track as the signal with backboards. Was this a transition period when the cantilever was first installed but not fully operational ?

On another note: running the train into Hamilton then backing out to proceed westerly was a bold move.