OpenStreetMap

Day 2

Posted by MATTHEW NIBARI on 18 February 2013 in English (English)

Recently got a email from Robert Whittaker asking me if he can revert back the changes I made. I am upset and very sad. and uneasy

Comment from EdLoach on 18 February 2013 at 13:56

You'll probably carry on getting similar messages while you are tagging things wrongly. Read some of the other links made in other comments. What you are doing is fine, but it is the way you are tagging things that is causing the problems, so just find a way of tagging things which works for everyone.

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Comment from smsm1 on 18 February 2013 at 14:50

Are you aware that you can surface the data in OSM in different ways. For example ITO World (the company I work for) have a series of maps highlighting data that you don't normally see on the map. The one of greatest interest to you is the Former Railways one: http://www.itoworld.com/map/198#fullscreen&lat=52.58151540618443&lon=1.0302901709739063&zoom=9

You could create your own rendering of the data using TileMill or Mapnik as a means to show what you find interesting and fading out the less interesting map data.

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Comment from Pgd81 on 18 February 2013 at 14:52

Hi Matthew, Welcome to OSM. I notice that you're running into conflicts with other OSM users, and it looks like it's due to a misunderstanding of how our tagging system works. OSM is designed to reflect current reality. However, that does not mean that historical information cannot also be added. There is no reason why you cannot complete your project, but I would recommend you create a new tag, such as "former_operator" or "former_name" (other users might have better suggestions) to hold information such as "M&GN" or "Great Eastern". That way, you (and other rail fans) can use those tags to quickly & easily locate these railways, whilst OSM maintains the correct tagging describing what is currently on the ground, and everybody wins. I hope this is helpful, and happy mapping.

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Comment from MATTHEW NIBARI on 18 February 2013 at 15:17

thanks everyone advised me but if their people willing to help please note I need a GPX file of link provided of the whole railway system during before the beeching era thanks Matthew

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Comment from MATTHEW NIBARI on 18 February 2013 at 15:41

Sorry to the users that I am conflicts with and the misunderstanding with

yours

Matthew

ps I am having problems with my connection with the Josm and openstreetmap sever I got red cross in each tile I am log in what's the problem while i need help with the old railway system?

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Comment from Robert Whittaker on 18 February 2013 at 18:04

The Overpass API at http://overpass-api.de/ can be used to query the OSM database in lots of different ways. If you want to extract all the ways and nodes that make up the UK railway network, both past and present, then you'll probably want to find any ways tagged with railway=rail, disused, dismantled, abandoned, preserved, and possibly narrow_gauge too.

The Overpass Turbo service at http://overpass-turbo.eu/ can be used to test queries and get a quick visual output of the objects that the query returns. Something like the following may be what you want: http://tinyurl.com/bl2gawv (Once the page has loaded, adjust the map view as required, then click on "run" in the top left to get the results.)

Once you've got the output from the Overpass API, you'll need to convert the JSON or OSM XML data into the format (eg GPX) that you want.

Of course, there may well be gaps in the disused railway network in OSM. Opinion is divided on whether or not we should store old railway routes which are no longer visible on the ground. Some people suggest using railway=dismantled for this, rather than disused or abandoned.

If you want to extract specific old lines automatically, then they would need tagging in some way to identify them. Again it is debatable whether this is appropriate, given that the OSM database is primarily there to record the current situation. However, it may be permissible to tag former railways with something like former_operator=* or former_line=*. Alternatively, one could create route relations for former lines, mirroring the relations used for current lines, e.g. http://www.openstreetmap.org/browse/relation/138808 . (For more information about relations, see http://wiki.openstreetmap.org/wiki/Relation .) But please discuss what you plan to do on the talk-gb mailing list before going ahead.

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Comment from MATTHEW NIBARI on 18 February 2013 at 18:24

Thanks Robert for your understanding

yours

Matthew

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