Our old friend ARS

Another question regarding our old friend the ARS system.
2. Knowing that ARS is not perfect by any means does this happen on the real panel with the same consequence, especially at Streatham South Junction?

Geoff

Another question regarding our old friend the ARS system.
Whilst doing a bit of testing for a Victoria Central 1975 timetable that I am writing, (it's taking for ever), I notice that the ARS is performing well and coping with all the trains that I have loaded so far from the rather large WTT. However, I note that the Streatham South Junction location does seem to cause it a bit of trouble. At times I have two services heading towards the junction i.e. a 2T** service from West Croydon to Blackfriars and a 2K** service from Epsom to Victoria or London Bridge via Mitcham Junction. Although the West Croydon service is always timed through the junction some two or three minutes later than the service from Epsom the ARS always seems to give this West Croydon service precedence. This causes the Epsom service to be delayed by some three or four minutes although plenty of time to get into Victoria and do the turn around for it's next service.

1. Is there anyway of getting ARS to recognise the fact that it should be setting the other way round by using the timetable timings?
2. Knowing that ARS is not perfect by any means does this happen on the real panel with the same consequence, especially at Streatham South Junction?

Geoff

1. Is there anyway of getting ARS to recognise the fact that it should be setting the other way round by using the timetable timings?

2. Knowing that ARS is not perfect by any means does this happen on the real panel with the same consequence, especially at Streatham South Junction?

Moreover as I understand it SimSig's ARS algorithms are different to those used in real world signalling installations, which therefore have different but similar problems of their own.

Another thing to remember about SimSig ARS is that the ARS works on the data from trains in sim. If a train has not yet entered, then the ARS doesn't take it into account and may well set a conflicting route for a later train which is already in sim from another entry point (or created by a Next activity).

" said:

1. Is there anyway of getting ARS to recognise the fact that it should be setting the other way round by using the timetable timings?

Tweaking the times would possibly do it but not ideal by any means. I've had this junction reported before so I'll see if there's some factor confusing it.


" said:

2. Knowing that ARS is not perfect by any means does this happen on the real panel with the same consequence, especially at Streatham South Junction?

As FP says, the real panel doesn't have ARS in this case. But speaking generally, yes, signallers get to know the usual problem areas and use reminders or turn off the subareas. Plus there's a special delay attribution code in TRUST for ARS mis-regulation.

Does Edinburgh run ARS in real life?

Yes, anticipate the conflict, and set the route in advance, or cancel the subarea, if you are quick enough, but you risk the penalty for cancelling the route in front of an approaching train.

" said:

Does Edinburgh run ARS in real life?

Yes, and not without issues IRL :whistle:

Yes, anticipate the conflict, and set the route in advance, or cancel the subarea, if you are quick enough, but you risk the penalty for cancelling the route in front of an approaching train.