[Imports] San Francisco building heights import

[Brandon Liu]

Hi imports@ list,

The SF building height import team is working to add height data for
buildings in the City of San Francisco (wiki [0]). We'd like to revive
the discussion which was started back in May [1]. We now have a newer,
higher resolution height dataset from the city government released
under a CC0 license [2].

We've added some new sections to the Wiki ([0]) detailing our methods
and evaluating the data's accuracy.

We're assigning heights by matching the new building dataset with
existing OSM footprints (within 70% match) [3]. To respect the work of
local mappers we're not deleting or adding any new buildings, nor are
we replacing any existing tags - we're only adding heights where they
don't already exist. This import process will have manual oversight at
every step.

The data is available in this Tasking Manager for everyone to review:

http://tasks.openmassing.org/project/11

Please review, but don't upload. Feedback is always welcome! Please
comment here, on GitHub [4] or chat with the team in Gitter [5].

Cheers,

Maning Sambale
Brandon Liu
Elliott Plack


[0] https://wiki.openstreetmap.org/wiki/San_Francisco_Building_Height_Import
[1] https://lists.openstreetmap.org/pipermail/imports/2016-May/004442.html
[2] https://sfgis-svc.sfgov.org/sfgis/San_Francisco_Bldg_withZ_20161028.zip
[3] 
https://wiki.openstreetmap.org/wiki/San_Francisco_Building_Height_Import#How_we.27re_assigning_heights
[4] https://github.com/osmlab/sf_building_height_import/issues
[5] https://gitter.im/osmlab/sf_building_height_import

___
Imports mailing list
Imports@openstreetmap.org
https://lists.openstreetmap.org/listinfo/imports

[Imports-us] OVRDC Sidewalk Import

[Malcolm Meyer]

Please review our sidewalk import.

The web map showing the proposed imports with OSM as the basemap is available 
here. 
If you want you can leave feedback on that map or reply to this email.

We have not been able to get hoot up and running, so are looking at JOSM for 
the import, merging our shapefile with the OSM data. We are still getting 
familiar with JOSM, so this may take some time.

There are a few areas where the existing sidewalks overlap. We will use 
existing data instead of our own for these cases.

Helpful comments appreciated.

Also, what are the next steps before we should move forward with the import?

Thanks

Malcolm T Meyer
Transportation Planning Coordinator
Ohio Valley Regional Development Commission | 73 Progress 
Dr. Waverly, OH 45690
mme...@ovrdc.org | (740) 947-2853 ext. 20219

___
Imports-us mailing list
Imports-us@openstreetmap.org
https://lists.openstreetmap.org/listinfo/imports-us

Re: [Imports-us] OVRDC Sidewalk Import

[Elliott Plack]

Malcolm,

This looks like a nice dataset to add to the map. Pedestrian routing is
great. I like how you've accessed the smoothness of each section.

_JOSM Pro tip_
Install the UtilsPlugin2 plugin!
https://josm.openstreetmap.de/wiki/Help/Plugin/UtilsPlugin2
When you drop a bunch overlapping lines like this in JOSM, this makes it
easy to add nodes at intersections.
Run the validator to find all of the places where there are intersections.
There should be some at every intersection * 4. Select all of the errors in
the validator (which selects the overlapping lines en masse) and then press
"Shift-I". This will create a node connecting any overlapping lines exactly
where they overlap. Review for unintended overlaps! It might be good to do
it in small sections. After pressing "Shift-I", all of the new nodes are
selected as well, so you can add one of the point crossing tags. I don't
know what the consensus is on that tagging, but it is important that
sidewalks and roads intersect.

_A few comments_
- Make sure to drop that ArcGIS `Shape_Leng` field. No use for that in OSM.
:)
- Review the parts where the sidewalk is on a bridge, e.g. over Paint
Creek. Add the appropriate bridge tags there.
- If you have any data on ramps or tactile paving, that is useful for ADA
routing.
- There are few discontinuous sections of sidewalk (near Rawling and
Blackstone). To keep things routable, tie them in to the street grid with a
driveway.

Best,

Elliott


On Tue, Nov 15, 2016 at 11:45 AM Malcolm Meyer  wrote:

> Please review our sidewalk import.
>
> The web map showing the proposed imports with OSM as the basemap is
> available here<
> https://www.ovrdc.org/apps/osm-sidewalk-project.html#14/39.5340/-83.4460>.
> If you want you can leave feedback on that map or reply to this email.
>
> We have not been able to get hoot up and running, so are looking at JOSM
> for the import, merging our shapefile with the OSM data. We are still
> getting familiar with JOSM, so this may take some time.
>
> There are a few areas where the existing sidewalks overlap. We will use
> existing data instead of our own for these cases.
>
> Helpful comments appreciated.
>
> Also, what are the next steps before we should move forward with the
> import?
>
> Thanks
>
> Malcolm T Meyer
> Transportation Planning Coordinator
> Ohio Valley Regional Development Commission | 73
> Progress Dr. Waverly, OH 45690
> mme...@ovrdc.org | (740) 947-2853 ext. 20219
> <(740)%20947-2853>
>
> ___
> Imports-us mailing list
> Imports-us@openstreetmap.org
> https://lists.openstreetmap.org/listinfo/imports-us
>
-- 
Elliott Plack
http://elliottplack.me
___
Imports-us mailing list
Imports-us@openstreetmap.org
https://lists.openstreetmap.org/listinfo/imports-us

Re: [Imports-us] OVRDC Sidewalk Import

[Mike N]

On 11/15/2016 6:08 PM, Elliott Plack wrote:

After pressing "Shift-I", all of the new nodes are selected as well, so
you can add one of the point crossing tags. I don't know what the
consensus is on that tagging, but it is important that sidewalks and
roads intersect.


  One related additional detail: the intersection between sidewalk and 
railway is rail=crossing, instead of rail=level_crossing as it would be 
for a road.



___
Imports-us mailing list
Imports-us@openstreetmap.org
https://lists.openstreetmap.org/listinfo/imports-us