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Wednesday, July 25, 2018

2018 RF&P / A-Line / H-Line / Southern Main Line Trip Report

It has been three years since I last surveyed the RF&P, A-Line and Southern Main Line and quite a bit has changed. This report will try and cover more of the signaling related changes and less of the various capacity improvements that have occurred in tandem. On the RF&P third track projects are causing intermittent layout changes north of Fredericksburg, but a number of legacy 2 track bridges are isolating the new segments. Not much of a signaling change as the whole area was re-done between 2012 and 2014. South of Fredericksburg a few remaining RF&P large target US&S N-3 intermediates still stand along with the classic bracket mast at Doswell. Towers at Fredericksburg, Millford, Doswell and Greendale were also still standing.

Still hanging in there!

Acca Yard in Richmond has seen major changes. Previously both ends of the yard had been completely interlocked. Now the throats had been converted to hand operation with simplier terminal interlockings constructed farther out. On the south end the old AY interlocking has been relocated with a access cutting through the wye to allow northbound movements off the Belt Line to access all the yead tracks. South of Richmond AF interlocking was getting a complete set of limited speed crossovers to replace a single trailing 15mph crossover. The Petersburg Station has also been provided with a new interlocking to reduce the need for trains to cross passengers across an active main track.

This RF&P vintage modern style N-3 gantry is a goner :-(

South of Petersburg the only remaining classic signals are at CHARLIE BAKER interlocking in Rocky Mount. A few new limited speed crossovers have also been installed with a few extra miles of double track to reduce time spent waiting in sidings for meets which is what eliminated the last few N-3 holdouts after 2015. The NS H-line has also seen a number of improvements with new interlockings and new passing sidings, but the line had already been assimilated by NS so there wasn't anything to be lost. The new Raleigh Station is open, but not all the tracks are in service and there is still work to be done before the new terminal interlockings are fully in service.

The last A-Line N-3s were replaced by new crossovers.

On the Southern main line a smattering of interlockings remain unresignaled, typically 1990's builds with the traffic light style heads. One example is FAWELL interlocking south of Lynchburg. Also, CR TOWER interlocking in Alexandria, VA has seen new Darth heads placed on the Southern vintage ladder poles. Although there are some exceptions, NS did not use the opportunity to add new CTC features such as a Restricting indication into single track territory. This has been done on some NS lines like the former NKP route, I believe, but not Southern. Also, many of the old Southern signal gantries have been left in place along the RoW where it was somehow inconvenient to have them scrapped. So there might be something worth taking a picture of if anyone makes a signal trek.

Apt that FAWELL interlocking would be resistant to change.


All in all this was a pretty dull trip, signaling wise. Exactly what we have to look forward to across North America for probably the rest of time :-(

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