Missing TD messages

[Martin Swanson]

I don't seem to have received TD messages for Porchester for the following train: 

15:32 Victoria to Southampton (today)

Can someone confirm if this is just me, or are others also missing those messages?

Thanks,

Martin

[Tom Cairns]

For 1J82 I have the following berth moves from Havant onwards:

17:51:23	HT	0021	0023
17:52:43	HT	0023	0025
17:53:06	HT	0025	0027
17:53:23	HT	0027	0029
17:53:55	HT	0029	0031
17:54:13	HT	0031	0033
17:54:39	HT	0033	0035
17:55:16	HT	0035	0037
17:57:11	HT	0037	0401
17:58:18	EH		H318
17:58:18	HT	0401	0318
17:58:51	HT	0318	0316
17:58:51	EH	H318	H316
17:58:52	EH		HTFA
18:00:08	HT	0316	0314
18:00:08	EH	H316	H314
18:01:19	EH	H314	H312
18:01:19	HT	0314	0312
18:02:01	EH	H312	H310
18:02:01	HT	0312	0310
18:02:53	HT	0310	0308
18:02:54	EH	H310	H308
18:02:54	EH	HTFA
18:04:56	EH	H308	H306
18:04:56	HT	0308	0306
18:05:41	HT	0306	E816
18:05:41	EH	H306	0816
18:06:21	EH	0816	0814
18:07:36	EH	0814	0810

HT0308 / EHH308 are Portchester so I think it looks like it was just you.

Tom

--

Tom Cairns

--

You received this message because you are subscribed to the Google Groups "A gathering place for the Open Rail Data community" group.

To unsubscribe from this group and stop receiving emails from it, send an email to

openraildata-t...@googlegroups.com.

To post to this group, send email to

openrail...@googlegroups.com <mailto:openrail...@googlegroups.com>.

For more options, visit https://groups.google.com/d/optout.

[Martin Swanson]

1000 apologies - I meant TM feed … !

[Tom Cairns]

Aha, no worries.

On that one I personally have no idea :-) I didn’t think Portchester reported through TRUST though – Cosham then Fareham?

Tom

--

Tom Cairns

To post to this group, send email to openrail...@googlegroups.com.

[Martin Swanson]

Correct, scheduled to travel Cosham, Porchester, Fareham

Cosham [CSA]

 Scheduled arrival: 1726 departure: 1727 Actual arrival: 1759 departure: 1759

-> Nothing for Porchester

Fareham [FRM]

 Scheduled arrival: 1736 departure: 1737 Actual arrival: 1808 departure: N/A

Train was cancelled at Fareham

Why would Porchester not be reported through TRUST ? Are there many other stations that are excluded ?

Martin

[Tom Cairns]

TRUST doesn’t report everywhere. Someone will be able to provide an exact list of where and when – but in a broad general summary, it tends to be major stations, termini, stations with junctions, most junctions themselves and delay reporting points (e.g. Vauxhall and Weybridge will report despite not being in the schedule for trains on the fast line Waterloo to Woking). I’d estimate there are around 500-600 stations at least where TRUST doesn’t report as a matter of course. 

TRUST itself is used more as an operational system rather than an information system (although it does drive them) so doesn’t need to report everywhere for that purpose.  To get around that issue, you can use other sources such as the TD. TRUST is effectively, for automatic reports, a processed version of TD passing through the SMART dataset and you could replicate that functionality yourself – I do it myself for Realtime Trains and get nearly to the second granularity. There are other ways of doing it, such as using Darwin – it all really depends on your needs.

Tom

--

Tom Cairns

[Martin Swanson]

5-600? That’s about 20% of stations. Is that right? Wouldn’t that mean the TM feed is virtually useless?

Could someone confirm those figures and the list of stations please? Probably worth specifying that on the wiki too ...

Martin

[Peter Hicks]

Hi Martin

On 26 Mar 2015, at 20:06, Martin Swanson <martind...@gmail.com> wrote:

> 5-600? That’s about 20% of stations. Is that right? Wouldn’t that mean the TM feed is virtually useless?
>

> Could someone confirm those figures and the list of stations please? Probably worth specifying that on the wiki too …

I can’t validate that figure, but the list of STANOXes that TRUST will report for is in the SMART ‘All Berth Steps’ data which you can download.


Peter

[Peter Mount]

This is from an old database but I make it 430 stations that are not in trust.

As for the TM feed being useless, it does depend on where you are on how many stations are missed out. For example in the London area most are included but on my home line (Maidstone East) several stations are missed out.

For example, Otford is not in Trust but Otford Junction is, about 1/4 a mile to the south of the station.

From there towards ashford its patchy. Kemsing isn't, Borough Green is then nothing until MDE then all stations to Ashford Intl.

It does tend to match where the TD berths are. Not all berths map to a station. In fact some berths can cover several stations. When I did the MDE Signal Map I know I've not got every station in the right place - East & West Malling seem to fit into this senario: http://uktra.in/signal/map/MA

Peter