Did you try with e.g. MapFactor Navigator, which has settings for your preference of 8 road categories + maxspeed inside & outside towns ? Just being curious.
regards m On Tue, Aug 22, 2017 at 1:13 PM, Lester Caine <[email protected]> wrote: > On 22/08/17 11:41, Colin Smale wrote: >> I agree, classification should be largely irrelevant to routing. >> Routing needs timings from node to node, which are best derived from >> bendiness, number of lanes, junctions etc and then capped to the legal >> maximum. A four-lane secondary, primary, trunk or motorway will all have >> the same effective speed in the absence of bends and junctions. > > The problem here is that most routing systems use the highway= tag as > the initial key to defining the 'defaults' for a link and the delay > elements added moving from one type of road to another. I am convinced > there is a problem with the tagging of the B4632 which is preventing it > from being seen as an alternative to the A46 10 mile detour but as yet > I've not spotted anything wrong. Shortest routing will pick it up, but > then avoids the M40/M6 for the next stage :( It's not just OSM routing > that gives problems, other routing engines are showing similar detours > around local 'shortcuts' ... so even within a single country > harmonization is a problem ... > > -- > Lester Caine - G8HFL > ----------------------------- > Contact - http://lsces.co.uk/wiki/?page=contact > L.S.Caine Electronic Services - http://lsces.co.uk > EnquirySolve - http://enquirysolve.com/ > Model Engineers Digital Workshop - http://medw.co.uk > Rainbow Digital Media - http://rainbowdigitalmedia.co.uk > > _______________________________________________ > talk mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/talk _______________________________________________ talk mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk
