Re: [talk-au] Talk-au Digest, Vol 71, Issue 25

[Li Xia]

Provided that licensing is all good, how can the data be imported into OSM? 
What can be done to ensure there's minimal duplicates?

Li.

On 26/05/2013, at 10:00 PM, talk-au-requ...@openstreetmap.org wrote:

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> Today's Topics:
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>   1. Re: data.sa.gov.au (Alex Sims)
> 
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> --
> 
> Message: 1
> Date: Sat, 25 May 2013 21:35:55 +0930
> From: Alex Sims 
> To: talk-au@openstreetmap.org
> Subject: Re: [talk-au] data.sa.gov.au
> Message-ID: <51a0a923.8090...@softgrow.com>
> Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
> 
> I'm just writing an email now to seek a similar agreement for 
> sa.data.gov.au as for data.gov.au
> 
> Alex
> 
> On 25/05/2013 5:23 PM, Paul Norman wrote:
>> 
>> The only issue with CC BY is that some data owners believe that 
>> attribution "reasonable to the medium" is more than the ODbL 
>> guarantees which allows "notices in a location ... where users would 
>> be likely to look for it" such as a wiki page linked from /copyright 
>> or in the case of produced works, a "notice ... reasonably calculated 
>> to make [anyone] aware that Content was obtained from the Database" 
>> (The "Database" in that quote would be what was provided under CC BY).
>> 
>> Some cities releasing data as CC BY insisted that only mention on any 
>> page where the map was viewed was reasonable, which is clearly 
>> unreasonable when there can be dozens of sources on one page, or even 
>> hundreds.
>> 
>> *From:*Ian Sergeant [mailto:inas66+...@gmail.com]
>> *Sent:* Saturday, May 25, 2013 12:09 AM
>> *To:* Daniel O'Connor
>> *Cc:* talk-au@openstreetmap.org
>> *Subject:* Re: [talk-au] data.sa.gov.au
>> 
>> Hi Daniel,
>> 
>> The first step should be to find out if they are willing to have their 
>> data relicenced under our licence?
>> 
>> CC-BY data is nice, and means that the data owner is likely only 
>> seeking attribution (which we do provide) but my understanding is that 
>> it is still insufficient for us to use without further permission from 
>> the data owner.  Pointers to our attribution page have worked in the 
>> past in gaining such permission.
>> 
>> Ian.
>> 
>> On 24 May 2013 18:58, Daniel O'Connor > > wrote:
>> 
>> The SA govt has joined many of the other state/local governments in 
>> publishing open data.
>> 
>> The current implementation is powered by CKAN, and though I haven't 
>> seen it yet, appears to be leveraging openstreetmap / cloudmade in 
>> some fashion.
>> 
>> Anyway, the majority of the data sets are CC-A licensed, and in either 
>> CSV or Shapefile format:
>> 
>> Some initial things that might be worth importing/using as a 
>> reference/looking into:
>> 
>> http://www.data.sa.gov.au/dataset/major-and-minor-roads
>> 
>> http://www.data.sa.gov.au/dataset/library-locations
>> 
>> http://www.data.sa.gov.au/dataset/parks-and-reserves
>> 
>> http://www.data.sa.gov.au/dataset/sa-playgrounds
>> 
>> http://www.data.sa.gov.au/dataset/stormwater-nodes
>> 
>> http://www.data.sa.gov.au/dataset/surface-water-catchments
>> 
>> http://www.data.sa.gov.au/dataset/suburb-boundaries
>> 
>> and of course:
>> 
>> http://www.data.sa.gov.au/dataset/centrelink-office-locations
>> 
>> Not sure how much overlap with data.gov.au  data 
>> sets (assume some).
>> 
>> Anyone want to have a look around and
>> 
>> 1) Call out the things you think are missing
>> 
>> 2) Call out the things you'd want to have imported or manually 
>> transcribed into open street map
>> 
>> 
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Re: [talk-au] Australia licence change redaction recovery..

[Brett Russell]

Yes thanks to all. Great to see the connecting roads reinstated and the routing 
largely back in action. Still a lot of minor roads missing with weird nodes 
scattered around but no great problem cleaning up. 

As more a bushwalker I mainly concentrate on tracks and geographical features 
but wonderful that the road infrastructure is nearly always there to connect 
into. 

Cheers
Brett Russell
PO Box 94
Launceston Tas. 7250
Australia
0419 374 971

On 27/05/2013, at 11:07 AM, "Ben Johnson"  wrote:

> Ian,
> 
> Thanks very much for doing this exercise.
> 
> I agree with all the sentiments already expressed - it's so encouraging to 
> see we bounced back so fast, and so strong, and that all our efforts have 
> made a difference. Everyone in the project should feel very proud of what we 
> achieved.
> 
> BJ
> 
> 
> On 25/05/2013, at 9:08 PM, Ian Sergeant  wrote:
> 
>> I crunched some numbers comparing AU planet extracts from today and prior to 
>> the redaction commencing.  Although they were for my personal edification,  
>> I thought I'd share them.
>> 
>> We have about 70,000 km of additional mapped unclassified and residential 
>> road now than we did before the redaction process - that is an increase in 
>> distance of about 27%.   In terms of distance of named roads in this 
>> category, we're about where we were before the redaction in absolute terms. 
>> 
>> Trunk and motorways there is no significant variation.  The number of 
>> kilometres of mapped road and named roads in this category is roughly 
>> unchanged.
>> 
>> In primary, secondary, and tertiary, we've had an increase in mapped 
>> distance of 35,000km, or around 20%.  Although we've seen a significant 
>> decrease in the number of secondary roads, and marked increase in the mapped 
>> km of tertiary roads.   Our post-redaction remappers have a tendency towards 
>> tertiary roads, it would seem.  Our length of named roads in this category 
>> is up in actual kilometres, but down on a relative basis.
>> 
>> In paths, tracks, footways and cycleways and service roads our mapped 
>> distance is also up,   We've seen huge increases in mapped tracks - closing 
>> on double what we had before.
>> 
>> So, my summary would be that we've probably comprehensively remapped he 
>> motorways and trunk roads across the country.  We've got significantly more 
>> tracks, paths and residential/unclassified roads than we had before.  There 
>> would seem to be artifacts of extensive aerial remapping, with the lower 
>> percentage overall of named roads, and what I'm thinking could be a 
>> consequent tendency to underrate what passes for a secondary road in 
>> Australia.  I'd also attribute greater mapping outside of urban areas to the 
>> more extensive bing imagery coverage, and possibly the focus of the 
>> redaction process on urban areas.
>> 
>> Of course, this is all quantitative data, not qualitative.  Take it for what 
>> it is.  My summary is just a guess, and I can't say with any certainty that 
>> the increase in distance isn't just fence posts on the Kimberley!
>> 
>> Ian.
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
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Re: [talk-au] Australia licence change redaction recovery..

[Ben Johnson]

Ian,

Thanks very much for doing this exercise.

I agree with all the sentiments already expressed - it's so encouraging to see 
we bounced back so fast, and so strong, and that all our efforts have made a 
difference. Everyone in the project should feel very proud of what we achieved.

BJ


On 25/05/2013, at 9:08 PM, Ian Sergeant  wrote:

> I crunched some numbers comparing AU planet extracts from today and prior to 
> the redaction commencing.  Although they were for my personal edification,  I 
> thought I'd share them.
> 
> We have about 70,000 km of additional mapped unclassified and residential 
> road now than we did before the redaction process - that is an increase in 
> distance of about 27%.   In terms of distance of named roads in this 
> category, we're about where we were before the redaction in absolute terms. 
> 
> Trunk and motorways there is no significant variation.  The number of 
> kilometres of mapped road and named roads in this category is roughly 
> unchanged.
> 
> In primary, secondary, and tertiary, we've had an increase in mapped distance 
> of 35,000km, or around 20%.  Although we've seen a significant decrease in 
> the number of secondary roads, and marked increase in the mapped km of 
> tertiary roads.   Our post-redaction remappers have a tendency towards 
> tertiary roads, it would seem.  Our length of named roads in this category is 
> up in actual kilometres, but down on a relative basis.
> 
> In paths, tracks, footways and cycleways and service roads our mapped 
> distance is also up,   We've seen huge increases in mapped tracks - closing 
> on double what we had before.
> 
> So, my summary would be that we've probably comprehensively remapped he 
> motorways and trunk roads across the country.  We've got significantly more 
> tracks, paths and residential/unclassified roads than we had before.  There 
> would seem to be artifacts of extensive aerial remapping, with the lower 
> percentage overall of named roads, and what I'm thinking could be a 
> consequent tendency to underrate what passes for a secondary road in 
> Australia.  I'd also attribute greater mapping outside of urban areas to the 
> more extensive bing imagery coverage, and possibly the focus of the redaction 
> process on urban areas.
> 
> Of course, this is all quantitative data, not qualitative.  Take it for what 
> it is.  My summary is just a guess, and I can't say with any certainty that 
> the increase in distance isn't just fence posts on the Kimberley!
> 
> Ian.
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
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Re: [talk-au] Australia licence change redaction recovery..

[Steve Bennett]

On Sat, May 25, 2013 at 9:08 PM, Ian Sergeant  wrote:
> So, my summary would be that we've probably comprehensively remapped he
> motorways and trunk roads across the country.  We've got significantly more
> tracks, paths and residential/unclassified roads than we had before.  There
> would seem to be artifacts of extensive aerial remapping, with the lower
> percentage overall of named roads, and what I'm thinking could be a
> consequent tendency to underrate what passes for a secondary road in
> Australia.  I'd also attribute greater mapping outside of urban areas to the
> more extensive bing imagery coverage, and possibly the focus of the
> redaction process on urban areas.


Thanks very much for doing this - I've been quite curious about where
we're up to. I had guessed we were about on par - so this is good
news. I've been doing a fair bit of aerial mapping lately - not sure
whether remapping or not. I tend to be pretty conservative with road
classifications on a first pass. Later, I might look at the area and
upgrade a couple of the roads.

Steve

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