[talk-au] highway=service

[Michael Collinson]

I've added my comments below Andrew's. Hope that is not too messy. /Mike

On 2021-08-14 03:59, Andrew Harvey wrote:
>
>
> On Sat, 14 Aug 2021 at 09:12, Tom Brennan <website at ozultimate.com 
> <mailto:website at ozultimate.com>> wrote:
>
>     Like my previous post on sidewalks, this one is also from walking and
>     cycling all of the streets of my LGA (Willoughby). The other area
>     where
>     tagging seems to me to be a bit messy is:
>
>     highway=service
>
>     This messiness may be more of a general OSM issue than
>     specifically an
>     Australian one!
>
>     Where possible I've been trying to add a service=? tag to define
>     these
>     better, in line with the relevant pages on the wiki. In my area, the
>     majority of these seem to be:
>
>     1. laneways between houses -> service=alley
>     For me these are part of the official road network, but in Willoughby
>     they are normally narrow, and lead to/past people's garages. This one
>     seems relatively clear cut - and also appears to be the only
>     service tag
>     that does relate to the official road network(?)
>
>
> Yeah I'd agree, but these are part of the public road network, they 
> are just lesser importance roads because they are mostly for access to 
> the rear of houses.
+1.  And in the US and northern UK may be poorly maintained, cobbled, 
temporarily obstructed etc, a good flag to routers.
>
>
>     2. driveways (private property) -> service=driveway + access=private
>     This seems pretty clear cut in residential areas. It also seems
>     fairly
>     clear for small business/industrial property that are for
>     employees/business vehicles only.
>
>     Where it gets a bit confusing is if the driveway is to something
>     else.
>     For example, in the Willoughby area, there are many industrial
>     complexes
>     which have "driveways". But if it leads to parking
>     (amenity=parking?),
>     is it still a driveway, or is it just highway=service without
>     service=*.
>     The access=* issues also interplays with this - because in larger
>     industrial complexes there may be a mix of access=private and
>     access=customers.
>
>
> Can you post examples? In my opinion, a good rule of thumb for 
> driveway is where you need to turn off the road and cross the 
> footpath. I realise it's not always clear though.
> Technically only the section inside the front fence is private, the 
> section between the footpath and road is public but I've never mapped 
> to this level of detail.

Personally, I ONLY use driveway for residential driveways. I feel using 
it for anything else is confusing and adds no value - despite what Map 
Features says. Like Andrew, I rarely split the sections into private and 
public sections but it IS useful for foot and wheelchair routing.
>
>
>     3. parking areas
>     This one can also be a bit confusing - following the wiki, some of
>     these
>     end up being service=parking_aisle, but others are without
>     service=* eg:
>     https://www.openstreetmap.org/edit#map=19/-33.80928/151.20897
>     <https://www.openstreetmap.org/edit#map=19/-33.80928/151.20897>
>     I imagine you can do in theory do an area query to establish
>     highway=service within amenity=parking, but this does seem clunky!
>     And not that we should be mapping for the renderer, but the rendering
>     also seems inconsistent:
>     https://www.openstreetmap.org/#map=19/-33.80939/151.20923
>     <https://www.openstreetmap.org/#map=19/-33.80939/151.20923>
>
>
> If you can turn from the way directly into a parking spot, then it 
> should be parking aisle, so that one I think should be parking aisle.

Slightly different view here. I find that most car parks have "arterial" 
ways for ingress/exit, navigation within larger parks, and sometimes 
very local through "destination" traffic; obvious from design or width. 
I don't put a parking_aisle on these. I think leads to better map 
presentation and routing. In Melbourne, I find that many car park 
service roads double up as useful bicycle connectors.
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