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46  All across the Great Western territory / Across the West / Re: Padding - tons of it, or about the right amount? on: June 11, 2015, 20:17:56
Many moons ago, there was a very obvious example of padding. A certain train (can't remember which or when) was Paddington to Plymouth on Mon-Thurs, but extended to Penzance on Fri.  Its Plymouth arrival time was something like 10 mins earlier on Friday, as that wasn't its terminating station that day.  So the additional 10 mins was likely to be only for making the final arrival more likely to be 'on time'.

You are thinking of the 1903 Paddington - Plymouth/Penzance, as someone has already mentioned, a few years back I think it was. Although the arrival time at Plymouth was the same throughout the week, you are thinking of the arrival time at Penzance. The arrival time into Penzance and at stations throughout Cornwall was the same throughout the week, whether it having been the HST (High Speed Train) through or the unit connection from Plymouth. Therefore as the unit was quicker stopping at all stations through Cornwall there was a high amount of extra time in the Public Timetable to bring it to the same time the HST on a Friday would arrive, which made St Erth to Penzance seem over double the normal journey time - frequently however it arrived early. This therefore mean't that on a Friday the HST was frequently made to look like it was late as it struggled with the unit public timetable, however then by Penzance it was back to the WTT (Working Time-Table) arrival (and the unit public timetable arrival Monday-Thursday), making it arrive on time.
47  Journey by Journey / London to the West / Re: RTT and the 0740 PGN to PAD - 03/06 on: June 03, 2015, 19:06:34
Thanks Louise94 for this explanation - I look forward to the next release.

HOWEVER..... Realtimetrains was reporting the train as 'Not Stopping' at both SCS and EXT several minutes before the train actually reached Starcross, which is what prompted my query.

What you are reporting isn't possible, the only way to report a 'Not Stopping' is the way I previously stated.
48  Journey by Journey / London to the West / Re: RTT and the 0740 PGN to PAD - 03/06 on: June 03, 2015, 16:50:43
The train did stop at Starcross and Exeter St Thomas. What you have highlighted however is the limitation of using train describer data for train running information. When signals are located at the ends and just before a station platform, it can have an impact on the information available.

For example at Starcross the signal is just before the platform and as such the HST (High Speed Train) because it is longer than the platform this impacts on the movement of the train describer to report an arrival, therefore the arrival reports when the train is just departing and the train describer jumps from the signal before the platform to the one after. This causes a pass report, as the arrival is reported as being after the departure.

However at Exeter St Thomas the signal is right at the end of the platform, and again as the HST is longer than the platform it goes past the signal to ensure Coach A is on the platform, this therefore results in a pass report being triggered as the departure report is reported before the train has reported as arriving.

This has been fixed for the next release, see the attachments - not without some assumptions, you must understand though.
49  Journey by Journey / London to Swindon and Bristol / Re: Didcot Platform 2 closed on: June 03, 2015, 11:29:03
There has been a track circuit failure which keeps re-occuring in the area.
50  All across the Great Western territory / Media about railways, and other means of transport / Re: Channel 4 Dispatches: Are you paying too much? 1st June 8pm on: June 02, 2015, 11:48:18
During the Reading blockade over the Easter weekend, I remember looking at Realtimetrains for my train back from Waterloo to Exeter St Davids. I was amazed at the difference between the GBTT (Great British Time Table) and WTT (Working Time-Table) timings - departure from Waterloo was shown as 1659 on GBTT, yet WTT showed 1707 and we actually left at 1708.

I got an explanation after the first diverts, that the different public and working times were artificially there to force booking engines to work properly.  Something to do with not wanting people to be offered connections into or out of SWT (South West Trains) services somewhere. I forget the details though.

Paul

Sounds logical, Paul

"They" want people to catch the :00 South West Trains if changing at (say) Basingstoke for Micheldever.  But if the FGW (First Great Western) train is shown at the WTT time (:07) the online table would offer that.  So by scheduling at :59, the FGW train becomes a slower journey with an earlier departure.

There was not an issue of changing out of the FGW service at Basingstoke as it was pick up only. I believe the poster is referring to going to Basingstoke on the previous SWT at (xx:05) and getting onto the FGW train there (Which the booking engine would think the xx:05 has overtaken) - common misconception it seems, as what they did causes just that with the departure at xx:59. Was fixed this time around with the use of differentials at Basingstoke to ensure the minimum connection time was not met.

Differentials at Waterloo were down to the nature of the trains path, train 2 minutes ahead and 2 minutes behind - was crucial the train left as soon as possible behind the xx:05.
51  Journey by Journey / London to the Cotswolds / Re: Cotswold Line 90% fare increases from 17 May 2015 on: May 19, 2015, 23:08:37
In addition to the 1022 PAD» (Paddington (London) - next trains)-HFD» (Hereford - next trains), it appears that 1W59 (1749 PAD-WOS» (Worcester Shrub Hill - next trains)) had some kind of problem yesterday. It was 17 minutes late at Didcot East Junction and 66 minutes late at Didcot North Junction.  It eventually arrived at Worcester 71 minutes late, having been overtaken by the 1822 ex PAD at Didcot.  Presumably, it went into Didcot Parkway station.  Does anyone know why?

Set Swap at Didcot Parkway with 1728 Worcester-London (180). The HST (High Speed Train) had its horn stuck on.
52  All across the Great Western territory / Across the West / Re: Reading Station improvements on: May 05, 2015, 00:09:51
Sorry didn't see this, the 'UFM' you refer to, if the train is still to pass through Reading, is the booked line. The 'DM' you are referring to is what happens when a Trust report is used instead of a Train Describer triggered report - Trust is known to be far from accurate with regards to line and path indications.

Thanks for taking the trouble to follow up.  So it seems to be a temporary issue that is known about which is what I thought I'd heard before.

Paul

Indeed, I am going to be going to the area to collect data next weekend. However when that data reaches the public eye on RTT» (Real Time Trains - website) I am not sure about - it will be released with the next version of RTT, which I hope will be released by the summer, although this isn't entirely within my control!
53  All across the Great Western territory / Across the West / Re: Reading Station improvements on: May 01, 2015, 19:36:13
The diagram may show it like that (not saying its wrong of course), but train planning information does refer to them as 'DFR' and 'UFM', suggesting Up and Down directions. I guess you could say the railway is full of inconsistencies!

Is there still a strange feature in RTT» (Real Time Trains - website) that changes the line name abbreviations for services as they happen, because a quick check of trains into P11 from the Westbury direction has them marked 'UFM' if they are yet to run, but 'DM' if they are in the past.

However, I think 'DM' in this context is not referring to the Down Main?

IIRC (if I recall/remember/read correctly) someone posted a while back that these odd abbreviations for lines are a known issue with the current data RTT uses?

Paul

Sorry didn't see this, the 'UFM' you refer to, if the train is still to pass through Reading, is the booked line. The 'DM' you are referring to is what happens when a Trust report is used instead of a Train Describer triggered report - Trust is known to be far from accurate with regards to line and path indications.

If you hover over the time in question you can identify if it is a TD or Trust triggered report.

Train Describer data to translate the movements to meaningful arrival and departure times is not available for the Reading area at the present time because of the recent re-signalling - it is waiting for someone to go to the area to record time of trains arriving and departing the station in various scenarios - oh and that will most likely be me at some point!
54  Journey by Journey / London to the Cotswolds / Re: 13:42 Paddington - Worcester Shrub Hill, Sunday April 19 on: April 26, 2015, 13:27:35
Not this weekend, it is a 5-car Turbo to Oxford, 3-car beyond. Shortage of HST (High Speed Train) sets is the issue.
55  All across the Great Western territory / Across the West / Re: Easter engineering works and subsequent ongoing disruption - April / May 2015 on: April 22, 2015, 08:49:01
I had to go to London today but was alarmed by the reports of the points failure at Charlbury yesterday. Turned up at Kingham this morning to be told that the 0820 (the Cathedrals Express) was the last train going to London and no guarantee of trains back as the points problem still hadn't been fixed.
So I went to Banbury and had two clean efficient on-time journeys courtesy of Chiltern.
Get back this evening and I see there's still a problem. Given the point work must be fairly new given the redoubling is not that long ago, what's the issue? Two days worth of trouble - come on...........?
And is somebody being held accountable for this? Seems ridiculous to me - OK I'm not an engineer but what's going on?

The points failure is at Wolvercote Junction (near Oxford), not Charlbury. There was a points failure on Monday and upon inspection the points had been damaged by a train. This required some work to be done to make them fit for service. Yesterday (Tuesday) the points were fit to be used however required to be clipped in place for any movements - therefore for every movement to and from Charlbury the points would need to be unclipped, moved and then clipped again. Therefore a limited service was running to/from London. The points were due to be back to normal operation this morning at 8, however that has slipped a bit and they are still not back to normal operations now.
56  All across the Great Western territory / Across the West / Re: Problems with the Night Riviera sleeper - December 2014 onwards on: April 22, 2015, 08:30:18
Something a bit different tonight - the westbound sleeper is starting from Bristol Temple Meads tonight due to staff sickness.

The 23:30 from Paddington was held back 15 minutes to provide a connection into it.

 Huh

There has to be a plausable reason, but I cannot think of one!  Any offers anyone?



Considering the crew for the sleeper come up working a service from Exeter, anything could of happened to make them report sick on arrival.
57  Journey by Journey / London to Reading / Re: Reading FC at Wembley: Fans criticise First Great Western over rail fares on: April 16, 2015, 10:17:10
Isn't there a capacity problem re: the Chiefs in that Digby and Sowton station can only take short trains?

Digby & Sowton station will quite happily accommodate 4-car DMUs (Diesel Multiple Unit) with some room still to spare; I think the usable platform length is just over 100m.

DIG is only allowed to accommodate 4 or fewer coach trains for some reason. The platform is 109m long, and shorter platforms don't have a similar embargo.

Quote
DIGBY & SOWTON
No train longer than four coaches may stop at this station.

The only other time GSVs are barred down here seems to be Argyle v City.

Of course FGW (First Great Western) also bar GSVs for games at the Millennium Stadium, Cheltenham, Glastonbury etc...

The extra platform length could not be used anyway, Lympstone Village's platform is only 90 metres long, so that would need extending first - or trains would not be able to call there whilst running longer trains (if it was allowed)
58  Journey by Journey / London to South Wales / Re: 1B46 14 45 Paddington to Swansea 13/4 on: April 14, 2015, 18:11:38
I am surprised a 1+7 was allowed to run as far as Bristol Parkway.  I'd have thought there might be rules preventing it through the tunnels on the Badminton line while in passenger service.

Given the train could only go forward it could not terminate at Reading and then go to Old Oak Common, but at Swindon and then ECS (Empty Coaching Stock) to St Philips Marsh?

Must have been a reason for why they did it the way they did, just looks strange on the face of it.

If it had terminated at Swindon it'd still of had to go through to Bristol Parkway to get to SPM (St Philip's Marsh (Bristol depot)) (So it could go straight in), so presume just made sense just to run it right through to there.
59  Journey by Journey / London to Reading / Re: Slough Panel RIP on: April 14, 2015, 18:08:58
It does.  Also part of the line from Oxford to Didcot and the Gloucester line from near Swindon Station to Kemble.

Can't remember how many workstations are involved.

Ten.  Paddington, Acton, Hayes, Maidenhead, Twyford, Reading, Reading West Jn, B&H (Berks and Hants - railway line from Reading to Taunton via Westbury), Didcot, Swindon(*).

(*) Swindon workstation currently just controls the Kemble line.  It will (when the Swindon panel finally gets decommissioned) fringe with Didcot at its eastern end, so TVSC» (Thames Valley Signalling Centre - about) will be continuous from the Paddington bufferstops to Hullavington and Thingley.

Slight correction there, its Slough not Maidenhead.
60  All across the Great Western territory / Across the West / Re: Reading Station improvements on: April 13, 2015, 21:29:24
Reminder to everyone.

Looking at reply no #3006, the track and signalling diagrams that Industry Insider provided the proper names for the feeder lines are: Reading Feeder Main and Reading Feeder  Relief, no Up or Down.

The diagram may show it like that (not saying its wrong of course), but train planning information does refer to them as 'DFR' and 'UFM', suggesting Up and Down directions. I guess you could say the railway is full of inconsistencies!

Another example of inconsistency is that the Reading Festival line on the diagram is called DOWN Reading Festival, where as train planning information refers to it as FVL, suggesting Festival Reversal. (RVL being what is used for reversible normally)
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