[OSM-talk] Which type of highways are used by routing software?

Milo van der Linden milo at dogodigi.net
Wed Nov 2 10:07:02 UTC 2016


In OSRM routing profiles are scripted in lua files. I suggest you take a
look at them and see if they fit your needs.

https://github.com/Project-OSRM/osrm-backend/tree/master/profiles

2016-11-02 10:55 GMT+01:00 Lester Caine <lester at lsces.co.uk>:

> On 02/11/16 08:41, Paul Johnson wrote:
> > On Wed, Nov 2, 2016 at 3:00 AM, Lester Caine <lester at lsces.co.uk
> > <mailto:lester at lsces.co.uk>> wrote:
> >
> >     On 02/11/16 00:57, john whelan wrote:
> >     > If OSMand etc treat them differently then we may not be showing the
> >     > shortest route.
> >
> >     OSMAnd currently does not use the best routes in any rural area!
> While
> >     the roads even in the UK may be 'unclassified', in many rural areas
> they
> >     are the main routes and I have asked before how this 'bug' can be
> fixed.
> >     Reclassifying the road is obviously wrong, but similarly changing the
> >     routing rules is wrong for other parts of the world, so it's not
> just a
> >     case of which routes are used, it's how the bias is applied to those
> >     routes ... and currently OSMAnd is simply wrong for the UK!
> >
> >
> > Try playing with the routing settings in Osmand.  My part of the world
> > can get similarly obscure at the low end, but usually setting shortest
> > route helps.
>
> Unfortunately it needs a little more than just that. The end points need
> 'shortest route', but once one has avoided the - in my case 10 mile
> detour going north - one wants the motorway rather than the slightly
> shorter 'old road'. I have tried playing with the biases in the past but
> invariably they get reset by some update and I'm back to square one. So
> now I just take the 'b' roads and let the routing catch up later :)
>
> There is room for a more general discussion on standardising some of the
> tagging data along with the routing biases so that one can select a set
> of rules that best fit personal experience rather than having to try and
> live with less optimal generic rules?
>
> --
> Lester Caine - G8HFL
> -----------------------------
> Contact - http://lsces.co.uk/wiki/?page=contact
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>
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-- 
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*Milo van der Linden*
web: dogodigi <http://www.dogodigi.net>
tel: +31-6-16598808
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