[OHM] Routing with OHM data (BA 1870)

[Jeff Meyer]

Jerry -

This is awesome.

Should we be logging some of these notes / bugs / to dos in a tasking
tracker somewhere? A Google spreadsheet might be a start, or should we
go straight to a software Dev tool of some sort (Pivotal?)?

- jeff

On Saturday, December 27, 2014, SK53 <sk53.osm at gmail.com> wrote:

> Following on from our conversation during last week's hangout, I've made a
> first test of using some OHM data for routing.
>
> I decided to use Graphhopper as this means one can route with several
> different transport modes with one model (faster engines, such as OSRM use
> contraction hierarchies which means only a single set of weights is applied
> to edges of the routing graph).
>
> After a fair bit of fiddling about with my java settings, I got
> graphhopper to run its default data set (Berlin OSM data). After that it
> was straightforward to replace the Berlin data with OHM data (my Buenos
> Aires 1870) and re-build the routing model.
>
> Testing it in the default graphhopper web app enables routing fine
> <https://www.flickr.com/photos/sk53_osm/15931690010/>.
>
> The current issues with this approach are:
>
>    - Web app does not show OHM data
>    - I  cant seem to click on the map for locations, and have to use
>    search.
>    - Search returns data from modern locations (hence the pin outside the
>    built-up area of the city).
>    - I only have car routing (may just be running graphhopper with
>    defaults)
>    - It needs 1870 style options & weighting.
>
> Anyone with a bit more knowledge of java might be able to sort out the
> last point. It would certainly be nice to have a tweaked version of the
> graphhopper web page for our own demo purposes.
>
> The key thing is that at least I've demonstrated that it works in practice
> as well as in principle.
>
> I think it also highlights what Karl said: that historical-based search
> will be important.
>
> Regards,
>
> Jerry
>
>
>

-- 
Jeff Meyer
Global World History Atlas
www.gwhat.org
jeff at gwhat.org
206-676-2347

OpenStreetMap: Mapping with a Human Touch
osm: Open Historical Map (OHM)
<http://wiki.openstreetmap.org/wiki/Open_Historical_Map> / my OSM user page
<http://www.openstreetmap.org/user/jeffmeyer>
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