OpenStreetMap

Activity 1

Posted by Govanus on 24 April 2013 in English (English)

The first activity begun was to Number the international roads in the UK as designated by the local area offices of the United Nations.

I started with my local one that goes from Gibralter to Greenook Primary route E05.

The only part I have done so far is on the British south coast from Gosport to the M3. Unfortunately I found I need to edit a lot of very small segements so only reached the southern end of the M3.

They aren't regulaly marked on the roads in the UK though a sign was chosen for them and the British Goverment did do a lot of leaseing at least in the past.

what you tend to find is that Motorway projects and major trunk roads (central funded and maintained) to take complementry paths to the scheme; so HGV use is still good for these roads.

Comment from BCNorwich on 25 April 2013 at 06:27

"Unfortunately I found I need to edit a lot of very small segements"

Hello Govanus,

If you use JOSM you can highlight/select several sections of way then edit them all at the same time. Your edit is inserted into each section.

Regards Bernard

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Comment from SK53 on 25 April 2013 at 09:23

I think that you don't need to do this.

You are probably not aware of relations which are used to add things like the European Road network. See this page on the wiki.

Here is an example of a short one E 24.

Many of these relations are very unwieldy (take a long time to save when edited), so the int_ref technique might still be preferable, or the relations could be broken up which was done with the US Interstate system

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Comment from Govanus on 1 May 2013 at 20:47

I'll be looking into these. problem is I don't often own the computer I use to connect so new s/w needs some thinking though to be installed.

I did see some but I think Idid this work when I was new to potlatch so was feeling a little limited in simple mode. I've gained mre experance since then.

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Comment from Govanus on 10 May 2013 at 19:52

Thank you SK53 I've just been able to lookup and see the details of your referances. I think you are right that most at least on that route seems to have been done via the relation method. I thought that a published map with data from AND BV. showed the E05 curving east onto the M27 next to southhampton, to go on to the docks in the district of Gosport (serves the same bay as southhampton). Thats were my changes were made so far to each way on that route up to the M3.

I think from a database point-of-view referances and grouping stuctures make a lot of sence as the reduce repertion in the data and can be edited possibly faster with some interfaces. Though from a render's point of view, there might be a lot of pre-linking work needed to find which relations I need to take account of when only rendering a small part of the world. I have no idea if it happens but it may be that some render engines skip meny referances and adopt a simpler less detailed render specification? I was wondering as I'm yet to have been lucky enough to find main maps showing the E numbering system. That and the lack of some the int_ref numbers blank, originaly made me think wrongly that they hadn't been done yet maybe.

I think for me the anotations to Gosport I made and the lot of work of others on finishing this route seems good enough for me in terms of editing adding int_ref's programaticly or useing advanced text manipulations on the baulk data of the database seems far quick than the tools I've used so far.

I am looking at useing the techniques you've shown me to finish the Rail numbering scheme at some point

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Comment from Govanus on 10 May 2013 at 20:08

I had another look at the wiki page and did find the map render link. True it dose take a while when working in realtime.

I also think now there is merit in the referanceing system when makeing a big map as it saves parseing all the ways to find the int_ref's. Though on small maps the the the other case still stands I guess render usally can pre-process the osm to a form for its perpose so it can make any aditional data linking tables if it wants to.

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Comment from Govanus on 10 May 2013 at 20:20

:> I've now spoted the gaps. I left by mistake. It was done in parts and I could see the progress with out anlysing each road segment's tab data in potlatch mainly.

When I'm on a single user computer with the flash suport I'll get that fixed. I'm looking forward to the Html5 editor. This multi-user unix i'm using today is briefed to support text catalog enquies so dumps sessions that get to taxing.

-Thank you all for your helpful advice

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Comment from Govanus on 11 May 2013 at 16:51

http://euroroutes.zkir.ru/ using the above link I tried to edit what looked to be missing but font that the int_ref tags were set I think the render is being pushed and some major miss alingment ints in junctions at large scales (small coverage) suggests that the data can be simpified before relaying over a osm raster tile.

I think the data is probably ok if any see a mistake let me know.

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