[OSM-talk-ie] Railways

[Colm Moore]

Hi,

> Subject: Re: [OSM-talk-ie] Railways
> To: colmmoore72 at hotmail.com; talk-ie at openstreetmap.org
> From: nakaner at gmx.net
> Date: Sun, 14 Feb 2016 22:44:26 +0100
> 
> railway=signal is not enough because there is a huge amount of different
> signals. Different due to the differences between railway companies and
> countries, different because the serve different purposes.

For historical reasons, the Irish systems (north and south) are very similar to each other and similar to the British system, but will no doubt have their nuances. There will of course be differences also for Luas and Bord na Móna. Most of the other operations are exceptionally limited in scope. 
> If you need help creating a tagging scheme for Irish signals, just write
> me an email and send me a link to the signalling ruleset (I prefer the
> official ruleset if public available.)
I may be able to talk to someone. :) There is limited information published: http://www.irishrail.ie/media/ie_2015_network_statement_m.pdf and https://www.translink.co.uk/Documents/Corporate/publications/network%20statement/Translink%20Network%20Statement%202015.pdf
> Are these timetable numbers numbers which I have to use if I want to
> find the timetable of this line at Irelands printed railway guide? If
> yes, then these numbers should be mapped as route relations using
> route=railway. route=train relations should represent the services. The
> German speaking countries have such a timetable number system but
> timetable numbering and line numbering are different.

Yes, those numbers should be used with route relations, not line numbers.
> > Stations have both station codes, e.g. CNLLY for Dublin Connolly 
> > and ticketing numbers (100 for Dublin Connolly). Certain stations 
> > and ports also have (British) National Rail codes for ticketing 
> > purposes. Station codes seem to be in use on the signalling 
> > system.
> 
> If station codes are unique of all Ireland (republic), you can tag them
> as railway:ref=*.
Code are unique. Irish Rail and Translink NI Railways operate a combined numbering system, that is different from the (British) National Rail system. Potentially we are talking about 3 series that need to be fitted.

> > Bridge numbers are in the style of UB_ (underbridge) and OB_ 
> > (overbridge) with _ being a line letter, e.g. "UBR 52" is the 52nd
> >  bridge on the Rosslare line. Older signs will only show the 
> > number, e.g. 52. Confusingly, there is a separate system of 
> > numbering for restricted bridges: 
> > http://www.irishrail.ie/media/bridgeheights1.pdf I don't know why 
> > bridge 52 was renumbered 264.
> 
> Use bridge:ref=* as there are bridge:name="River XY Bridge" and
> bridge:wikipedia=en:River_XY_Bridge.

There is a pattern of people using name=number and not using either bridge:name=* or bridge:ref=* - fixing it is a matter of going through every bridge manually.
> > 6.> [2] In Germany> That depends on the situation. Cologne–Düsseldorf is operated like this:
> https://de.wikipedia.org/wiki/Datei:Line_operation_scheme.svg
> Each track pair is independent.
> 2650 IC/ICE with max. 200 kph, fast regional express trains with max.
> 160 kph
> 2670 is used by slow local trains stopping at all stations, max. 140
> kph. This line has sometimes only one track.
> 2324 is only used by freight trains (and has been built by a different
> company in 19th century)
> 

98-99% (by distance) of the Irish system has either one (2300 ways) or two (1,900 ways) tracks. Normally, trains run on the left. On part of the DART and at some(?) passing loops, they can also run on the right. With the very few sections with 4 tracks (perhaps 20 ways), they will run as:
LeftFast UpSlow UpSlow DownFast DownRight
It is marginally safer than the road-like system in many countries that puts the fast trains on the centre tracks, as the risk of head-on collision is between slower-running trains. 'Up' is normally to Dublin or Belfast. On Dublin-Belfast it is to Belfast.
The 3-track and the rest of the 4-track are in the vicinity of stations and many such sections will allow traffic in both directions or have specific nuances.
Colm

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