[Talk-scotland] Edinburgh 20mph Limits

Thu Mar 2 14:36:46 UTC 2017

I think I would tend to agree with Robert, ideally we would seek
permission to use the street list from the council. But there is merit
in surveying, to get thing exactly right.

I have my tasking manager up and running again, and have been having a
play with polygon based task shaping, have a loom here:

http://tasks.openstreetmapscotland.org/project/2

Basically, I created an .osm file. Then used http://geojson.io/ to turn
it into a geojson file. Every polygone in that file in turn becomes a
task. So we can divide the zone into logical zones that people can
claim, survey and update.

That way we won't duplicate effort and can ensure we cover the complete
zones.

If we can agree that this is a good idea, then login to the task
manager, I will bump up your privilidges to create a new project. And or I can
share my .osm file to finish divding up and create the task.

Thoughts?

Cheers
Chris 

On 01/03/17 at 10:25pm, Robert Weetman wrote:
>    My thoughts would be...
> 
>    a) you could argue that you are only taking the speed limit information
>    from the mapping, which probably wouldn't be seen as copyright (coming
>    from the council not the Ordnance Survey). I doubt that anyone in the
>    council has considered making this open data... busy people etc.
> 
>    b) BUT I suspect that there may be variation on the ground in terms of
>    where speed limits actually change - that there may be some considerable
>    variation between what was planned at a high level (and is therefore shown
>    on the mapping) and exactly what will have been installed.
> 
>    With b in mind I'd tend to want to do a survey based on the mapping... but
>    I must admit to being more daunted than for Edinburgh's city centre 20mph
>    zone. Could someone draw a polygon (saved in appropriate format - e.g.
>    kml) to define where the edges of the zones should be? That would make it
>    a more realistic prospect to survey. The city centre survey became complex
>    where there were existing 20mph zones - one zone merging into another. I'd
>    guess the potential for the same this time is greater.
> 
>    Robert
> 
>    On 01/03/2017 18:52, Donald Noble wrote:
> 
>      Well the next section of this roll out (phases 2 & 3) should now be in
>      force, so it would be good to get the map updated...
>      I have just updated the streets in Marchmont I know have changed [1],
>      but have not done any on the ground surveys yet to cover the wider
>      extents. 
>      I cannot find a list of streets that are covered by the new limits,
>      which would presumably be open data. The council GIS portal [2] that
>      shows all the streets that have/will change does not have any copyright
>      information on it.
>      What are people's thoughts on whether this dataset is appropriate to
>      update OSM, or does it need an on the ground survey to check?
>      Cheers, Donald
>      [1] although I think there are still a few signs to sort, notably at the
>      southend on Blackford Avenue, which I have reported as missing.
>      [2] [1]http://edinburghcouncil.maps.arcgis.com/apps/webappviewer/index.html?id=ca131eddb0084197b160edbbad2ca8c7 
> 
>      On Sat, 30 Jul 2016 at 11:33 Robert Weetman
>      <[2]robert.wtman.88 at gmail.com> wrote:
> 
>        I've created an Overpass query to show the live speed limit data. See
>        here:
> 
>        [3]http://overpass-turbo.eu/s/hAJ
> 
>        On 26/07/2016 15:03, [4]me at chrisfleming.org wrote:
>        > I've just realised that the 20mph limits in the first 2 zones in
>        > Edinburgh come into force from the 31st of July.
>        >
>        > Given that the signs are now in place, I think it would make sense
>        to
>        > try and map as much of the change by/on the 31st July.
>        >
>        > To try and co-ordinate things I've setup a tasking manager and added
>        a
>        > task for the city centre zone at:
>        > [5]http://tasks.openstreetmapscotland.org/
>        >
>        > If this is useful, then I will add the Queensferry Square.
>        >
>        > ITO maps have a map of current speed limits at:
>        >
>        [6]http://product.itoworld.com/map/124?lon=-3.20365&lat=55.94420&zoom=13
>        >
>        > more info on the changes on the council website:
>        >
>        [7]http://www.edinburgh.gov.uk/info/20243/20mph_for_edinburgh/1024/about_20mph_for_edinburgh
>        >
>        > (at some stage they had a list of streets on the website, although I
>        > can't find it at the moment)
>        >
>        > Cheers
>        > Chris
>        >
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