[Talk-ca] GeoBase to OSM attribute mapping.

[Steve Singer]

On Fri, 26 Dec 2008, James Ewen wrote:

> Just looking at some attributes...
>
> The alleyway/lane is currently mapped as highway:service. I would
> suggest that highway:service is more appropriate. Here's the
> description for a sevice road:
>
> Generally for access to a building, motorway service station, beach,
> campsite, industrial estate, business park, etc.. This is also
> commonly used for access to parking and trash collection. Sometimes
> called an alley, particularly in the US.
>
> Local/unknown is currently mapped to highway:service. This should
> probably be highway:road. where that is described as:
>
> Road with an unknown classification. This tag should be used
> temporarily until the road has been properly surveyed. Once it is
> surveyed the highway tag should be changed to record the appropriate
> classification.

Those sound reasonable to me.


>
> Rapid Transit is currently mapped to highway:bus_guideway. I'm
> thinking railway:light_rail, at least in Edmonton, our rapid transit
> system is a light rail transit system. Perhaps other areas of Canada
> have a rubber tire based guided transit system.
>

Are Edmonton light rail routes tagged in the NRN as "Rapid Transit" or not 
counted as roads? I don't see anything in the BC dataset tagged with this 
class (I don't see anything in the BC dataset tagged with rapid transit)

I don't think we can assume rapid transit is rail. Ottawa has a tire/bus 
based transit system with some dedicated bus only highways. I suspect this 
shows up elsewhere. The definition in the NRN feature spec says "A 
thoroughfare restricted to public transit buses".

> In Alberta, we haven't tagged anything as highway:motorway. Our top
> level tag is highway:trunk. This GeoBase/OSM project could work to
> unify the tagging across the country!

Yes unified tagging across the country is something we should be working 
towards.

>
> What about Freeway -> highway:motorway, Expressway -> highway:trunk,
> Highway -> highway:primary?

Your differentiating between "Expressway" and "Highway" as I read the NRN 
feature map "2 Expressway/Highway" is a single feature code.
You could do
Freeway=>highway:motorway
Expressway/Highway => highway:primary or highway:trunk




>
> James
> VE6SRV
>

Steve