Red aspects at Little Bytham??

I'm playing the 2003 default TT Loader version of Peterborough and am intrigued bt the signals showing a red aspect at Little Bytham (see attached picture). Would someone with local knowledge please explain their purpose.

Thanks in advance
Bugsy

bugsy in post 95241 said:

I'm playing the 2003 default TT Loader version of Peterborough and am intrigued bt the signals showing a red aspect at Little Bytham (see attached picture). Would someone with local knowledge please explain their purpose.

Thanks in advance
Bugsy

Eerm, you haven't attached a picture

I'm playing the 2003 default TT Loader version of Peterborough and am intrigued bt the signals showing a red aspect at Little Bytham (see attached picture). Would someone with local knowledge please explain their purpose.

Thanks in advance
Bugsy

I assume a wayside stop. The station closed in September 1959.

Barry

So the signalling wasn't updated then? Too costly I suppose.

The signalling wasnt in place in 1959! The PSB opened between 72 and 77.

I would think it has something to do either with a former yard or ground frame which was removed early in the Panels life or else is just a standard requirement for a controlled signal to be placed as there is such a long string of automatics.

The OHLE cut-off was mitigated in 2009 with the installation of a new wiring and power system. The neutral section was moved to between Milepost 77.5 and Milepost 78.25. (A little further South.)

TPWS has been installed for 140mph running ever since Class 91s (IC225) were introduced in the early 90s.

The emergency crossovers cease to exist, following the restructuring of Peterborough Station's layout whilst building Platforms 6&7.

One of my closest friends is signalling and train deployment manager for Stevenage to Newark N. Gate (Peterborough Sector).

What is this "ATSC-DA" thing, then? I've never ever heard of it (as, until recently, a Signalman working to one of Peterborough's fringes), and a Google search only points to this thread. Is it fictional?

ATSC-DA: Automatic Tailback Signal Check-Delays Avoidance

This system was developed on the Exeter line c.2012 to minimise delays by moving the tailback for Newark N. Gate, Retford and Doncaster stopping trains (i.e. Non-Grantham and not the express to York trains) to prevent start-stop movement. An 'expert' decided its illogical use at Little Bytham, Great Ponton and Corby Glen was justified. My friend's colleagues are trying to get it removed. However, box-tickers from the RAIB and the HSE think something illogical is 'safe' (so they can side-step any legal responsibility if something goes wrong. It's actually more likely to cause an incident with it because any matter is more easily dismissed by the signalman as 'ATSC-DA doing its weird thing again' rather than 'What's happened? Why is my train stopping in the middle of nowhere?

Sorry about the Class 91 mix-up. Anyway, TPWS (with a different name) WAS used since the Class 91 came on.

Regarding the Emergency Crossovers, they were left there (though the HSE would have probably had something to say about their condition if they were formally 'operational'.) until properly removed after restructuring.

Regarding my friend's job, because VTEC (previously EC) is not the only operator (compared to say, the Brighton ML, where Govia is the sole company.) NR have to approve the timetables.
Also, during works periods, NR normally take over timetabling from the TOCs in order to keep the timetable flowing.

Little Bytham was removed and directly substituted by Fletton.

Hope that helps!

Any more questions that have nothing to do with this, please put that under a new thread if you can. This helps for me to go through the questions. I will hopefully let my friend answer a few questions if/when she comes round.

Late Turn in post 95440 said:

What is this "ATSC-DA" thing, then? I've never ever heard of it (as, until recently, a Signalman working to one of Peterborough's fringes), and a Google search only points to this thread. Is it fictional?

I was curious as well, but I can't find any reference to the term anywhere online but this thread.

Maybe if Kurt is reading this he will tell us as he works at PBO box.

No, the TTs are done on a regional basis. The Peterborough Sector covers ECML Stevenage to Newark, XC Line to Melton, the XC line to Ely, the Lincon line and even a small part of the GEML.