[talk-au] Using roads dataset from data.sa.gov.au

Daniel O'Connor daniel.oconnor at gmail.com
Mon Mar 9 09:31:59 UTC 2015


So, after doing this manually for a bit; it's generally working well.

There are some where spot checking against other sources suggests the
dataset is wrong, how do you suggest we indicate these?

I've put in NOTE or FIXME on the relevant way.


The thing that is troubling me is the size of the dataset - a few hours
work barely makes a dent.

I've taken to deleting all Primary/Trunk, Secondary and Track ways from the
data set; and then cropping stuff down to the metro adelaide area; and it's
still very sizable.


I'd be *really* keen on maproulette at this point - you seem to be able to
produce updated files fairly regularly, adding a few bash scripts to turn
that into curl friendly statements seems achievable.

Going to start sending a few pull requests your way to get us started on
this.


On Sun, Mar 1, 2015 at 11:23 AM, Henry Haselgrove <haselgrove at gmail.com>
wrote:

> Well spotted, Alex. It is interesting that both of the errors you have
> found have been in the “type” part of the name (e.g., street/lane/terrace
> etc). There seems to be approximately 1000 roads where the difference
> between the OSM and datasa versions is the type (excluding cases that could
> easily be determined to be typos in OSM, like terace, cresent,  etc). I
> wonder what proportion of those 1000 are errors in datasa?
>
>
>
> I have decided to modify my scripts so that they omit from “missing.osm”
> cases where the difference is only in the road-type portion of the name.
> The script will now put these cases into a different file,
> “different_road_type.osm”, instead. Except, the cases of obviously
> misspelled OSM road types will stay in missing.osm.
>
>
>
> I have placed my latest versions of missing.osm and
> different_road_type.osm in the Google Drive folder. I have also pushed the
> new versions of the scripts to Github.
>
>
>
> Incidentally, the scripts now put the tag “upload=false” into the .osm
> files, so that if you accidentally hit “Upload” in JOSM when you are on
> that layer bad things won’t happen!
>
>
>
> Cheers,
>
>
>
> Henry
>
>
>
> *From:* Alex Sims [mailto:alex at softgrow.com]
> *Sent:* Thursday, 26 February 2015 1:35 AM
> *To:* OSM Australian Talk List
> *Subject:* Re: [talk-au] Using roads dataset from data.sa.gov.au
>
>
>
> I’ve started finding errors not on OpenStreetMap but in the DPTI data.
>
>
>
> I’ve documented a fix process at
> https://wiki.openstreetmap.org/wiki/Import/South_Australian_Roads#Errors_in_the_source_data
>
>
>
> It’s not as easy as an edit on the Map but it should work
>
>
>
> Alex
>
>
>
>
>
>
>
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> Talk-au at openstreetmap.org
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>
>
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