[Routing] Tools for getting from OSM to a routable network

[Florian Lohoff]

On Thu, Sep 18, 2014 at 08:11:37AM +1200, Geoff Leyland wrote:
> Obviously, open toolsets for all this already exist for OSM (I’m aware of at
> least OSRM and Graphhopper and can find my way slowly around the wiki).

I am using OSRM for multiple purposes. One of them in quality assurance. I rebuild
the OSRM Database every 4 hours with a current extract of germany an then i am calculating
an n:m matrix routes comparing them to last trys lengths. If length changes i write
results to a postgres and send out an email saying the route changed with a link
which visualizses the changes of route.

Example:
http://routeqa.zz.de/?rid=16751,16826

This is a a false negative. I am seeing a small number of routes which flip
forth and back with OSRM although nothing changed on the network. Cant explain this
right now.

I am currently working on a small number of nodes ~200 in 5 Clusters. I am covering
the larger roads in my area. I was thinking of extending this, but finding good waypoints
for checking is not easy. I was thinking of using schools, railway stations, motorway exits 
etc. Currently this is a manual task i doing with QGis.

OSRM is fast enough for me - I have seen something like 150 Routes per second running with
single requesting process.

Flo
-- 
Florian Lohoff                                                 f at zz.de
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