[talk-au] When is a road, not a road?

[Warin]

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'.
>>>
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