[OSM-talk] Removing redundant routing instructions

[phil at trigpoint.me.uk]

On Mon Apr 27 15:07:45 2015 GMT+0100, Marc Gemis wrote:
> As long as the name (or the ref/int_ref) of the street remains the same, I
> think the router should be able to give other messages than "turn right".
> There is no need for an additional relation IMHO.
> 
There is often no ref, or name. If there is a name it will often change. 

Phil (trigpoint )
> 
> On Mon, Apr 27, 2015 at 12:06 PM, Lester Caine <lester at lsces.co.uk> wrote:
> 
> > On 27/04/15 10:45, phil at trigpoint.me.uk wrote:
> > >> == Question ==
> > >> >
> > >> > Could we benefit from a new route relation? For example a
> > "route_continues"
> > >> > relation? Would others find this useful?
> > >> >
> > > And more importantly, if you need to turn off onto the minor road going
> > straight ahead it remains 'silent'.
> > > I have occasionally used a through_route relation in these cases, but
> > lack of support from routers does make it seem futile.
> > > Much like the via way relation,  that one is so needed too.
> >
> > Why do I find that confusing?
> >
> > Currently in general the directions ignore corners even if there are
> > roads going off those corners. The complaint is about 'extra' directions
> > where the corner is actually the main road and the straight on branch is
> > the turning. If the directions remain silent one would in some
> > conditions get confused so the safe thing to do is announce both?
> >
> > The correct wording of the the directions should be perhaps 'road bares
> > right' and 'go straight on' rather than 'turn right' but that does need
> > the perhaps missing "through_route" information? As I said, the
> > inclusion of road names in OSMAND while useful at times does get
> > similarly annoying when a 'continue on Axxx' would suffice. In this case
> > the road id provides the "through_route" information ... one remains on
> > the same road ... and the straight on road has a different one which may
> > just be 'minor road'.
> >
> > --
> > Lester Caine - G8HFL
> > -----------------------------
> > Contact - http://lsces.co.uk/wiki/?page=contact
> > L.S.Caine Electronic Services - http://lsces.co.uk
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> > Rainbow Digital Media - http://rainbowdigitalmedia.co.uk
> >
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>

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