Re: [talk-au] When is a road, not a road?
On 22-Dec-16 05:19 PM, Sam Wilson wrote: I've found that there are quite a few MRWA road centre-lines that bear no relation to where the actual road is. Usually because there are big lumps of granite in the way, or quarries, or other physical reasons to re-route the road. (I guess the road-builders don't tell MRWA that they changed things?) Humm these might be 'private' roads - e.g. constructed by a mining company for their use. So they might be highway=unclassified etc but access=private. But yeah, I'm taking MRWA's geometries as a guide only, and certainly not assuming their data is 100% complete. :-) So, I'd assume that any non-track highway that is in OSM but not in MRWA is as-currently-mapped, and leave it be. Also, around towns there are often MRWA residential roads with names and classifications etc. but which haven't actually (yet) been built. These are sometimes currently firebreaks, but sometimes just scrub. Similar problems occurs with the LPI base map ... though sometimes I think that the LPI base map might be more up to date than the satellite imagery:-\ Generally I leave these out as they may not exist yet. If you can see them as firebreaks then you could enter them as tracks. :-) Of course, really what we should do it get out there for some ground-truthing to solve these questions! :-) Yes. Thought there is rather a lot of ground to cover8-) —Sam On Thu, 22 Dec 2016, at 01:11 PM, Andrew Davidson wrote: The metadata says that it includes roads maintained by Main Roads and "all roads controlled by Local Government (Local Roads) that are assigned road numbers", which is great. It also has "other centreline is also included for paths and unknown roads" which is a bit vague as to how complete the data set is. What do the missing roads look like on aerial imagery? On 22/12/16 16:06, Warin wrote: On 22-Dec-16 03:59 PM, Warren wrote: I suspect the answer to this question is simple. Following Sam Wilson's post about the data sources available for Western Australian Roads, and using Sam's approach I have begun adding and checking road names in WA. In the area that I am currently working there are a number of named "roads" on OSM (usually Highway: unclassified), that do not appear on the Main roads data. If a road is not on the Main roads database does it automatically become a named track (Highway: Track)? I'd leave it alone... someone thinks otherwise ... contact them for their view. The 'Main roads database' may not include roads maintained by local councils ... that does not make them OSM 'highway=track'. ___ Talk-au mailing list Talk-au@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-au ___ Talk-au mailing list Talk-au@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-au ___ Talk-au mailing list Talk-au@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-au ___ Talk-au mailing list Talk-au@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-au
[talk-au] When is a road not a road
In this case I know the roads, I have walked, ridden a bike, and in some cases driven them. They exist, but they are in a restricted area. This is possibly why they do not appear on the WAMR data. I guess my question includes the concept of what roads should appear on the OSM map. I know this discussion has been had before. Do we accept the MRWA data as an "approved" set of public roads in WA? I understand, and agree with, Warin's point about not changing data without good cause. I also understand Sam's point about the "on ground accuracy" of the MRWA data. ___ Talk-au mailing list Talk-au@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] When is a road, not a road?
I've found that there are quite a few MRWA road centre-lines that bear no relation to where the actual road is. Usually because there are big lumps of granite in the way, or quarries, or other physical reasons to re-route the road. (I guess the road-builders don't tell MRWA that they changed things?) But yeah, I'm taking MRWA's geometries as a guide only, and certainly not assuming their data is 100% complete. :-) So, I'd assume that any non-track highway that is in OSM but not in MRWA is as-currently-mapped, and leave it be. Also, around towns there are often MRWA residential roads with names and classifications etc. but which haven't actually (yet) been built. These are sometimes currently firebreaks, but sometimes just scrub. :-) Of course, really what we should do it get out there for some ground-truthing to solve these questions! :-) —Sam On Thu, 22 Dec 2016, at 01:11 PM, Andrew Davidson wrote: > The metadata says that it includes roads maintained by Main Roads and > "all roads controlled by Local Government (Local Roads) that are > assigned road numbers", which is great. It also has "other centreline is > also included for paths and unknown roads" which is a bit vague as to > how complete the data set is. What do the missing roads look like on > aerial imagery? > > On 22/12/16 16:06, Warin wrote: > > On 22-Dec-16 03:59 PM, Warren wrote: > >> I suspect the answer to this question is simple. > >> > >> Following Sam Wilson's post about the data sources available for > >> Western Australian Roads, and using Sam's approach I have begun adding > >> and checking road names in WA. In the area that I am currently > >> working there are a number of named "roads" on OSM (usually Highway: > >> unclassified), that do not appear on the Main roads data. > >> > >> If a road is not on the Main roads database does it automatically > >> become a named track (Highway: Track)? > > > > I'd leave it alone... someone thinks otherwise ... contact them for > > their view. > > > > The 'Main roads database' may not include roads maintained by local > > councils ... that does not make them OSM 'highway=track'. > > > > ___ > > Talk-au mailing list > > Talk-au@openstreetmap.org > > https://lists.openstreetmap.org/listinfo/talk-au > > ___ > Talk-au mailing list > Talk-au@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-au ___ Talk-au mailing list Talk-au@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] When is a road, not a road?
The metadata says that it includes roads maintained by Main Roads and "all roads controlled by Local Government (Local Roads) that are assigned road numbers", which is great. It also has "other centreline is also included for paths and unknown roads" which is a bit vague as to how complete the data set is. What do the missing roads look like on aerial imagery? On 22/12/16 16:06, Warin wrote: On 22-Dec-16 03:59 PM, Warren wrote: I suspect the answer to this question is simple. Following Sam Wilson's post about the data sources available for Western Australian Roads, and using Sam's approach I have begun adding and checking road names in WA. In the area that I am currently working there are a number of named "roads" on OSM (usually Highway: unclassified), that do not appear on the Main roads data. If a road is not on the Main roads database does it automatically become a named track (Highway: Track)? I'd leave it alone... someone thinks otherwise ... contact them for their view. The 'Main roads database' may not include roads maintained by local councils ... that does not make them OSM 'highway=track'. ___ Talk-au mailing list Talk-au@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-au ___ Talk-au mailing list Talk-au@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] When is a road, not a road?
On 22-Dec-16 03:59 PM, Warren wrote: I suspect the answer to this question is simple. Following Sam Wilson's post about the data sources available for Western Australian Roads, and using Sam's approach I have begun adding and checking road names in WA. In the area that I am currently working there are a number of named "roads" on OSM (usually Highway: unclassified), that do not appear on the Main roads data. If a road is not on the Main roads database does it automatically become a named track (Highway: Track)? I'd leave it alone... someone thinks otherwise ... contact them for their view. The 'Main roads database' may not include roads maintained by local councils ... that does not make them OSM 'highway=track'. ___ Talk-au mailing list Talk-au@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-au
[talk-au] When is a road, not a road?
I suspect the answer to this question is simple. Following Sam Wilson's post about the data sources available for Western Australian Roads, and using Sam's approach I have begun adding and checking road names in WA. In the area that I am currently working there are a number of named "roads" on OSM (usually Highway: unclassified), that do not appear on the Main roads data. If a road is not on the Main roads database does it automatically become a named track (Highway: Track)? ___ Talk-au mailing list Talk-au@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-au
